Claremont Hotel energy study

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July 2014

Table of Contents

1 Executive Summary 2 Methodology 3 Site Details 4 Utilities Analysis 5 Benchmarking 6 Energy Management Matrix 7 Staff Issues 8 Funding and Government Support 9 General Comments 10 Energy Saving Initiatives 11 Appendices Page |3

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APPENDICES APPENDIX

DESCRIPTION

A

Weather Chart – Average Daily High and Low Temperature

B

0% Green Business Loan Scheme

C

Energy Performance Asset Rating

D

Tabulated Calculations

E

Schedule of existing split DX devices

F

Thermal camera imaging results

G

Temperature logging results

H

Weather compensation controls quotation

I

Manx Gas communication (CHP installation)

J

Basement layout drawing showing proposed CHP locations

K

Basement courtyard showing proposed location of CHP No.1

L

Basement courtyard showing proposed location of CHP No.2

M

Building Evolution limited proposals

N

SAV limited proposals

O

Pipework insulation quotation

P

"Energy Eye” application form

Q

“TOP TEN LIST OF ENERGY SAVING STRATEGIES” in the Hotel & Hospitality industry.

R

Reference publication: “Hotel Energy Solutions - Analysis of energy use by European Hotels”

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1 Executive Summary Energy savings summary table (excludes items 5.0 & 6.0 from table below) Potential Annual Savings

Actual Annual Savings

(Identified During Survey)

(Identified During Follow-Up Survey)

Total Savings (£) Total Savings (%) Total Savings CO2 (Tonnes) Total Savings CO2 (%) Total Savings KWH Total Savings KWH (%) Capital Cost (£)

37,653 Total Savings (£) 35 Total Savings (%) 125 Total Savings CO2 (Tonnes) 37 Total Savings CO2 (%) 790,482 Total Savings (KWH) 66 Total Savings KWH (%) 173,122 Capital Cost (£)

Pay Back Period (Years)

4.6 Pay Back Period (Years)

Return on Investment (%)

434 Return on Investment (%)

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Recommended action(s) in order of priority

PRIORITY

1.

(No cost, Low cost or Investment) No cost

2.

ACTION

Annual Savings

Capital Cost

Payback Period

Status

nil

(Years) 0

(Essential or Advisory) Essential

2,162

nil

0

Essential

Implement shut down procedures

2,162

nil

0

Essential

Low cost

Supply & install ‘Energy Eye’ monitoring

2,162

1,230

0.6

Advisory

5.

Investment

Upgrading lighting & controls (Building Evolution)

MULTIPLE OPTIONS (SEE APPENDIX M)

Advisory

6.

Investment

Heating & cooling controls (Building Evolution)

MULTIPLE OPTIONS (SEE APPENDIX M)

Advisory

7.

Investment

Weather compensation controls (Paul Wheeler and Manx Controls)

2,192

10,462

4.8

8.

Investment

Variable speed heating pumps (Mannin Gas Services)

1,558

5,000

3.2

9.

Investment

Pipework insulation (Kings Thermal Insulation)

1,274

2,930

2.3

Advisory

10.

Investment

CHP installation (SAV systems)

16,343

130,000

8.0

Advisory

11.

Investment

HIU flat station installation serving Kitchen areas (SAV systems)

1,273

3,500

2.75

12.

Investment

HIU flat station installation serving Guest suites (SAV systems)

6,365

20,000

3.14

Implement energy policy

(£ Est.) 2,162

No cost

Implement staff awareness training

3.

No cost

4.

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(£ Est.)

Advisory Advisory

Advisory Advisory

July 2014

Energy Consumption Breakdown Claremont Hotel (2012-2013) Fuel Source Natural Gas

Energy Consumed PA 717,157 KWH

Grid Electricity Total Gas and Electricity per Annum

%

%

KWH Pence

60

Cost of Energy Consumed £42,455.69

5.92

Carbon Footprint 131.67 tCO2e

39

484,300 KWH

40

£65,525.79

1,201,457 KWH

100

£107,981.48

% 39

Conversions Used 0.1836kg/kwh

61

13.53

208.25 tCO2e

61

0.43kg/kwh

100

9.00

339.92 tCO2e

100

Claremont Hotel Building Emissions Rating Building Status Current

Building Emissions Rating (kgco2/m2) 124

Typical Emissions Rating (kgco2/m2) 183.5

Best Emissions Rating (kgco2/m2) 97.3

EPC Asset Rating C = 64

NOTE: The building emissions rating for the Claremont Hotel is above the average for a Hotel of a similar size and use. However, although the BER index may be better than average, the relative cost of the consumption is significantly higher due to higher energy costs on the Isle of Man.

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Energy Performance Asset Rating More energy efficient

Net zero CO2 emissions

â—„ 64

This is how energy efficient the Claremont Hotel is.

Less energy efficient

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Building Services Space Heating and Cooling The Claremont Hotel is conditioned using LTHW (wet) radiators and split DX (heating and cooling) systems. A schedule of split DX systems presently installed in the Hotel is included in the appendices. Radiators are located throughout the hotel (bedrooms, staff rooms, kitchens, corridors) and split DX systems are located in the lounge, restaurant, boardroom and function rooms. The fuel source for space heating and domestic hot water is natural gas and controls are manual.

Four gas condensing boilers serve the Hotel, which are located in two separate plant rooms. The boilers in plant room 1 (left side of the building) serve 24 guest rooms and the boilers in plant room 2 (right side of the building) serve 32 guest rooms.

The boilers are maintained twice a year by Paul Wheeler limited. The newest boiler (Alpha) is 3 years old and the others (Clyde) are 10 years old. Richard Bool reported that the Clyde boilers require more frequent maintenance, as they are prone to breakdown. One of the boilers was in the process of being replaced at the time of the audit.

It was noted during the audit that the split DX units in the basement function rooms were running when the area was not in use.

The unit at the back of the right-hand lounge was running at 30째C and the area was overheated. It was assumed that this was due to the area being open to the reception, which is cooler due to one of the automatic circular doors remaining open, allowing air from the outside to enter the reception, lounges and sometimes the restaurant.

There are split DX units located in the bay windows, which can sometimes have their vents open. This causes the warm air from the units and the cold air from the vents to constantly conflict with each other.

In conclusion, public areas are being overheated to compensate for the allowance of cold air entering the building, through window vents and open doors. Due to the manual controls, units are left on when they are not required.

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Bedrooms were found to be a lot warmer than expected (ranging from 23.5-27.3°C), with an average temperature of 26°C. Guest suite 102 in particular overheats. Un-insulated hot water pipe work was found with a thermal camera underneath the floor in this room and a sample image has been included in the appendices. Bedrooms also suffer from solar gain issues. This can raise the room temperature above the 1924°C, which most people find comfortable.

Following discussion with Richard Bool it was agreed to carry out an experiment to reduce the ‘RUN’ times for the DHW secondary circulating pump in plantroom 1 and record the resultant temperature in guest suite 102. The results of the temperature logging are included in the appendices and it can be seen that the resultant temperature in the room appears to be lower when the DHW pump operating times are reduced.

It should be noted that the modified DHW operating regime will also benefit the Hotel by reduced energy costs.

The right-hand plant room was overheated. Much of the exposed pipe work recorded temperatures of 51°C. It was noted during the audit that large areas of pipe work and flanges were not insulated resulting in losses of energy.

A quotation for insulating the exposed pipework in plantroom 2 has been obtained from King’s Thermal Insulation Limited and is included in the appendices.

There are different heating profiles during the summer and winter months. It was noted that if the weather is reasonable in summer the heating can be switched off for two months.

Weather compensation controls are presently not installed in either of the two plantrooms. Weather compensation permits the boiler temperature to be modulated to reflect the outside air temperature e.g. if the outside temperature increases the boiler flow temperature is correspondingly reduced and vice versa.

A quotation has been obtained from Paul Wheeler ltd to supply & fit weather compensation controls and motorised valves in both plantrooms and is included in the appendices.

Analysis of the electricity and gas demands for the Hotel over a 24 month period has established that the Claremont Hotel would benefit from a CHP (combined heat & power) installation and thermal store to serve each of the two existing plantrooms.

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The CHP engines would be installed inside weatherproof enclosures located in the existing courtyards (see appendices) and inter-connected by insulated pipework and cables with their respective plantrooms.

The suppliers claim that the CHP gas engine is both low maintenance and quiet operation (equivalent to the noise of a domestic washing machine).

Based upon existing demand figures the combined installations are anticipated to provide approximately 46% of the Hotel electricity consumption and 82% of the heating demands which translates into an estimated 16% saving in present annual energy costs and carbon emissions.

Proposals have been obtained from SAV systems limited and details are included in the appendices.

An email received from Manx Gas is also included in the appendices which indicates that various financing options may be available if the CHP installation was procured through Manx Gas.

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Key:

The existing heating and DHW control profile is shown below:

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Sunday

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Zone 1 (plant room 1) Space Heating DHW 05:00 – 08:00 05:00 – 08:00 08:00 – 17:00 08:00 – 17:00 17:00 – 23:00 17:00 – 23:00 23:00 – 05:00 23:00 – 05:00 05:00 – 08:00 05:00 – 08:00 08:00 – 17:00 08:00 – 17:00 17:00 – 23:00 17:00 – 23:00 23:00 – 05:00 23:00 – 05:00 05:00 – 08:00 05:00 – 08:00 08:00 – 17:00 08:00 – 17:00 17:00 – 23:00 17:00 – 23:00 23:00 – 05:00 23:00 – 05:00 05:00 – 08:00 05:00 – 08:00 08:00 – 17:00 08:00 – 17:00 17:00 – 23:00 17:00 – 23:00 23:00 – 05:00 23:00 – 05:00 05:00 – 08:00 05:00 – 08:00 08:00 – 17:00 08:00 – 17:00 17:00 – 23:00 17:00 – 23:00 23:00 – 05:00 23:00 – 05:00 05:00 – 08:00 05:00 – 08:00 08:00 – 17:00 08:00 – 17:00 17:00 – 23:00 17:00 – 23:00 23:00 – 05:00 23:00 – 05:00 05:00 – 08:00 05:00 – 08:00 08:00 – 17:00 08:00 – 17:00 17:00 – 23:00 17:00 – 23:00 23:00 – 05:00 23:00 – 05:00

On Off Zone 2 (plant room 2) Space Heating DHW 05:00 – 08:00 05:00 – 08:00 08:00 – 17:00 08:00 – 17:00 17:00 – 23:00 17:00 – 23:00 23:00 – 05:00 23:00 – 05:00 05:00 – 08:00 05:00 – 08:00 08:00 – 17:00 08:00 – 17:00 17:00 – 23:00 17:00 – 23:00 23:00 – 05:00 23:00 – 05:00 05:00 – 08:00 05:00 – 08:00 08:00 – 17:00 08:00 – 17:00 17:00 – 23:00 17:00 – 23:00 23:00 – 05:00 23:00 – 05:00 05:00 – 08:00 05:00 – 08:00 08:00 – 17:00 08:00 – 17:00 17:00 – 23:00 17:00 – 23:00 23:00 – 05:00 23:00 – 05:00 05:00 – 08:00 05:00 – 08:00 08:00 – 17:00 08:00 – 17:00 17:00 – 23:00 17:00 – 23:00 23:00 – 05:00 23:00 – 05:00 05:00 – 08:00 05:00 – 08:00 08:00 – 17:00 08:00 – 17:00 17:00 – 23:00 17:00 – 23:00 23:00 – 05:00 23:00 – 05:00 05:00 – 08:00 05:00 – 08:00 08:00 – 17:00 08:00 – 17:00 17:00 – 23:00 17:00 – 23:00 23:00 – 05:00 23:00 – 05:00 July 2014

Hot Water Domestic hot water is served from the same boiler system as the space heating. Due to the function of the building there is a high demand for hot water at certain times of the day (morning and later in the evening). Peak demands from guest rooms served from the RH plantroom have occasionally outstripped the available storage capacity and resulted in a drop in the hot water temperature in some rooms.

It was noted during the audit that the domestic hot water was running too hot from taps (after 30 seconds the temperature was above 60°C).

This temperature exceeds the health and safety guidance and is recommended to be investigated further.

Energy cost savings may be achieved by replacing the existing hot water calorifiers serving the kitchen and guest rooms with heat interface units which require no or very little storage of hot water.

Proposals have been obtained from SAV systems limited and details are included in the appendices. It should be noted that the quotations are for supply & delivery of equipment only. Further investigation work shall be required to determine the feasibility of adapting the existing hot water distribution systems.

Insulation The building is constructed of Manx stone which suggests that it has good thermal properties.

The existing loft space is not insulated and is only provided with one means of access into just one section. It is estimated that up to 25% of energy can be lost through un-insulated roof space. It would be beneficial to insulate the loft space to prevent this potential energy loss.

The pipework installed in the RH plantroom is uninsulated and the ambient temperature in the plantroom is noticeably high as a consequence of this. A quotation has been obtained from King’s Thermal Insulation limited to insulate the existing pipework and details are included in the appendices.

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July 2014

Lighting There are various lighting conditions throughout the hotel. T8 tubes with high frequency ballasts are located in circulation and staff areas (store rooms, kitchens, corridors). CFL tubes are mainly located in the corridors leading to bedrooms and LED spots are located in some bedrooms, with the majority of bedrooms still using halogen spots.

Richard Bool is currently changing the halogen spots in bedrooms for LED spots when required. Richard purchases the new LED spots from LED Direct on Douglas Promenade, who specialise in low-cost LED light bulbs and offer advice as to what will work in certain rooms.

Some areas, especially public areas (the restaurant, lounges, and function rooms) contain mixed lighting.

It was noted during the audit that rooms were lit in areas that do not gain benefit from artificial lighting (basement foyer, reception). It was also noted that the CFL tubes in circulation areas were adding to overheating.

All lighting controls are manual, which can result in lights being left on when rooms become unoccupied. This was confirmed during the site visits.

Proposals for improving the control and energy efficiency of the existing lighting installation have been obtained from Building Evolution limited and details are included in the appendices.

Ventilation The majority of the building is ventilated naturally (through open windows and window vents), with mechanical ventilation present in bathrooms and toilets.

The window vents in the restaurant are located below the split DX units, which conflicts with the outside air temperature resulting in wasted energy.

Proposals for improving the control and energy efficiency of the existing split DX units have been obtained from Building Evolution limited and details are included in the appendices.

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July 2014

Controls Controls throughout the Hotel are predominantly manual, for heating and lighting. This can cause certain items to be left switched on when they are not needed, especially in areas that are used late at night.

Space heating (to wet radiators) is controlled through timers, which are manually set by Richard Bool through the plant rooms. The profile can sometimes change due to the nature of the business. For example, the Hotel caters to flight crews. The air crew can arrive at the hotel late or very early and request the heating at odd times, due to their work. This results in the timers being overridden to respond to guest’s requirements.

Proposals for improving the control and energy efficiency of the existing space heating (wet radiators) installation have been obtained from Building Evolution limited and details are included in the appendices.

Awareness and Training There is currently one person (Richard Bool) delegated with responsibility for energy usage and cutting costs.

During the site visits, there was little evidence of staff awareness in relation to energy saving. It is recommended that all staff are made aware of their individual responsibilities when it comes to energy use and energy saving techniques.

It would be beneficial to display “SWITCH IT OFF� notices throughout areas where there is a lot of energy wasted in order to encourage staff to save energy wherever possible.

An energy strategy is recommended to be developed and implemented to ensure that staff, customers and visitors are energy aware.

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2 Methodology The assessment began with an opening meeting with Ricardo Campos (the Hotel manager) during which Epsilon explained that they had been commissioned to carry out a full energy audit of the building and services. Ricardo mentioned that energy bills were approximately £100,000 per year for gas and electricity.

Mike Glanfield from Epsilon introduced Ricardo to Kevin Burnell (ISO QA Limited), Nigel Stafford (Building Evolution) and Gemma Burnell (ISO QA Limited), and explained that he has asked for their expertise as part of the project. Floor plans were supplied to each party, to gain an understanding of the building layout. Ricardo confirmed that there were no safety or security procedures that could affect their visits.

The ISO QA energy assessment was carried out from 7th March 2014 to 18th March 2014, with specific visits as detailed in the table below. This included a meeting with the Hotel manager and facilities/maintenance engineer to review billing and building services. Access to all areas was confirmed and controlled by the facilities/maintenance engineer who ensured that the assessment did not impact on staff and customers.

Date

Time on Site

Weather Conditions

O S Temp.

Notes

7th March 2014

10:30 – 12:30

Sunny, Calm

Not taken

11th March 2014

10:00 – 16:00

Sunny, Light Breeze

9°C

18th March 2014

10:00 – 16:00

Slight Wind, Cloud Cover

9°C

Initial meeting and site walkthrough Site visit and measurements (basement and ground floor) Site visit and measurements (bedrooms)

All zones were measured and a record taken of glazing, doors, walls, floors, ceilings, lighting, heating and cooling including controls. The building services examined included heating, cooling, lighting and controls. The results of which are included in this report.

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A number of measurements were also carried out for temperature, humidity and lighting conditions. Solar and wind activity were not measured as conditions were not conducive to gaining meaningful data. Such tests would need to be carried out over a 12 month period to fully assess the potential benefits of renewable energy.

The data collated following the site surveys was entered into the ‘LifeSpan’ Simulated Building Emissions Model software to produce the building emissions results (see executive summary).

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3 Site Details The Claremont Hotel is based in one site on the Douglas sea front, over five floors. The use of each floor is detailed below:     

Basement – Function rooms, storerooms, toilets, plant rooms, meter cupboards and a food preparation area Ground Floor – Reception, lounge area, toilets, ‘Coast’ restaurant and kitchens including storerooms First Floor – 18 en-suite bedrooms Second Floor – 19 en-suite bedrooms Third Floor – 19 en-suite bedrooms

Due to the nature of the business, the building is occupied 24 hours a day, 7 days a week. All bedrooms contain various facilities for guests to use during their stay, including coffee machines, kettles and televisions with DVD players. There is no ‘on site’ car parking facility for guests due to the location of the Hotel.

The Hotel was originally five separate buildings. It is constructed with solid Manx stone and east-facing with two elevations exposed to the external environment. The north and south elevations are connected to conditioned spaces.

Employees of the Hotel are responsible for cleaning and securing the building and Richard Bool takes care of maintenance issues, including energy-saving initiatives.

The Hotel is not equipped with a laundry, therefore this function is outsourced. There are however two kitchen areas. One large kitchen serves the restaurant and the other is located in the basement, serving the basement function rooms when they are in use. The function rooms are used for business conferences, parties and weddings, so can be occupied during the day and night according to the booking arrangements.

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Meters There are three gas meters used to calculate consumption and charges. They are located in the right-hand side of the basement area and at the back of the building. One meter serves the kitchen gas demands and the other two serve the gas boilers located in the two plantrooms.

There are two electricity meters located at the rear of the building in a separate locked area. It was noted during the audit that they consisted of an analogue meter and a poly-phase meter. One meter records the total electricity consumption of the Hotel and the other serves as a check meter.

To gain a better understanding of how much electricity is consumed at different times of the day and week, it is recommended to fit ‘Energy Eye’. This will give half-hourly data on the amount of electricity being consumed and permit detailed analysis of electricity consumption.

Catering There is a large amount of catering equipment located in the hotel. This includes refrigerators, ovens, cookers, a manual on/off ventilation system, dishwashers, hot water urns and a large cold store.

A site survey of the Hotel catering areas was carried out with John Purvis of Design Catering limited but very few opportunities for energy saving measures were identified beyond encouraging staff to switch off appliances when not in use.

Due to the nature of catering there are not a lot of options available to reduce consumption in this area. However, energy waste can be reduced by ensuring that equipment is maintained regularly and that energy efficient equipment is considered when items require replacement.

Power Factor There was no available information to gain an accurate measure but it was reasonable to assume, based on the equipment and processes carried out that it should be no less than 0.90. However, it is recommended to consider fitting ‘Energy Eye’ made available from Manx Utilities as this will enable an accurate measurement of power factor to be taken. Manx Utilities do not presently impose a penalty on customers who have a poor power factor.

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July 2014

Electricity ASC (agreed supply capacity) The Claremont Hotel has a KVA agreement with the Manx Utilities of 130KVA per month. A review of the electricity bills over the past two years confirmed that this was well within the agreed capacity. Therefore, no penalty charges appear to have been incurred. However, it was pointed out during the investigation that an application has been made to the MEA to increase the agreed supply capacity to cater for split DX (heating & cooling) units proposed for installation in 16 seaside facing guest rooms.

Tariffs and Charges The business is on the standard commercial electricity tariff of 13.53 pence per unit of electricity consumed. The Hotel will also benefit from the prompt payment discount of 2.5% and a direct debit discount of ÂŁ1.00.

Solar Gain Solar gain may be an issue in some bedrooms facing the West elevation, causing some of the guest rooms to overheat at certain times of the year. By applying solar film to existing glazing the overheating issues could be mitigated. This measure will also reduce the cooling load on the seaside facing rooms proposed to be fitted with split DX heating & cooling units and keep electrical running costs to a minimum.

Renewable Energy Owing to the location and topography of the building the ‘LifeSpan’ SBEM data did not suggest that the building would benefit from employing renewable technologies.

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4 Utilities Analysis It was ascertained that there are two main utility sources used within the building; electricity and gas. Grid electricity is used for lighting and electrical appliances whilst natural gas is used for space heating, domestic hot water and cooking.

You will see from the following table how much of each energy source is currently being used.

Energy Consumption Breakdown Claremont Hotel (2012-2013) Fuel Source Natural Gas

Energy Consumed PA 717,157 KWH

Grid Electricity Total Gas and Electricity per Annum

%

%

KWH Pence

60

Cost of Energy Consumed £42,455.69

5.92

Carbon Footprint 131.67 tCO2e

39

484,300 KWH

40

£65,525.79

1,201,457 KWH

100

£107,981.48

% 39

Conversions Used 0.1836kg/kwh

61

13.53

208.25 tCO2e

61

0.43kg/kwh

100

9.00

339.92 tCO2e

100

The SBEM report indicates that a similar size building with the same business use should be consuming 80% gas and 20% electricity. From the above table it can be seen that the Claremont Hotel is using proportionally more electricity than the benchmark building.

During the audit, it was noted that some electrical appliances were left on when they were not required (e.g. split heat systems, lights, televisions, computers, etc.). Awareness amongst all staff regarding energy consumption and waste is recommended to improve this situation.

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5 Benchmarking We have used information supplied by the UK Government to compare the Claremont’s present building emissions rating (kgco2/m2) against the benchmarks set by Energy Efficiency Best Practice Guides for Hotels.

The results (see chart in Appendix C) indicates that the Claremont Hotel is above average efficiency with potential to improve, specific measures are detailed elsewhere in this report. However, although the consumption index may be better than average, the cost of the consumption is significantly higher due to higher energy costs on the Isle of Man.

Claremont Hotel Building Emissions Rating Building Status Current

Building Emissions Rating (kgco2/m2) 124

Typical Emissions Rating (kgco2/m2) 183.5

Best Emissions Rating (kgco2/m2) 97.3

EPC Asset Rating C = 64

6 Energy Management Matrix The Energy Management Matrix chart provides an assessment of the perceived management approaches to energy within the organisation.

The matrix shows an overall appreciation of energy management for the site. The areas highlighted represent current achievement levels indicating key areas where improvement can and should be made. You will see from the scores that there is potential for development in all areas.

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July 2014

Level

Policy

Organising

Training

4

Energy Policy, Action Plan and regular review have active commitment of top management

Fully integrated into management structure with clear accountability for energy consumption

Appropriate and comprehensive staff training tailored to identified needs, with evaluation

3

Formal policy but no active commitment from top management

Energy training targeted at major users following training needs analysis

2

Un-adopted Policy

Clear line management accountability for consumption and responsibility for improvement Some delegation of responsibility but line management and authority unclear

1

An unwritten set of guidelines

0

No explicit energy policy

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Performance Measurement Comprehensive performance measurement against targets with effective management reporting Weekly performance measurement for each process, unit, or building

Ad-Hoc internal training for selected people as required

Monthly monitoring by fuel type

Informal mostly focused on short term gains

Technical staff occasionally attend specialist courses

Invoice checking only

No delegation of responsibility for managing energy

No energy related staff training undertaken

No measurement of energy costs or consumptions

Communicating

Investment

Extensive communication of energy issues within and outside of organisation

Resources routinely committed to energy efficiency in support of business objectives

Regular staff briefings, performance reporting and energy promotion

Some appraisal criteria used as for other cost reduction projects

Some use of company communication mechanisms to promote energy efficiency Ad-Hoc informal contacts used to promote energy efficiency No communication or promotion of energy related issues

Low or medium cost measures considered if short payback

Only low or no cost measures taken

No investment in improving energy efficiency

July 2014

7 Staff Issues Richard Bool attended site visits to answer any questions that we had and help us gain access to certain areas.

During these visits Richard informed us that he often has issues with the boiler flow temperatures. The temperature must be set quite high (usually 65°C) to compensate for significant drops during peak periods (early morning and evening).

Implementing weather compensation controls in both plantrooms should help to address temperature control issues and enable energy savings to be achieved for heating the Hotel.

Richard mentioned that when light bulbs in bedrooms require replacing they are replaced with LED spots to save energy. Currently, this only happens as and when required.

The Hotel currently has issues with staff leaving items on when they are not required, especially the split DX heating & cooling units in the function rooms. Formal awareness training for all staff, relating to energy issues, and signage around these areas to remind staff to “switch off” after use would help alleviate this problem.

Richard is very proactive in reducing energy consumption but appears to have limitations on his budget. He was extremely helpful and valuable to this energy audit.

The meetings with Richard confirm that the company is located on the lower levels of the energy management matrix and there is room for significant improvement in training and staff awareness of energy management and waste.

8 Funding and Government Support The business has taken advantage of the Business Support Scheme grant of 50% for this audit and can now consider looking at the Green Loan Scheme (Appendix B) attracting up to £20,000 interest free loan over four years. Payable in four annual instalments allowing savings to be generated prior to payments made.

The government also funds environmental management systems (ISO 14001) through the BSS which can be used to reduce waste streams including a continued focus on energy consumption.

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July 2014

9 General Comments Energy Policy: There is no formal energy policy within the Hotel.

Organising: At present there is no accountability for energy consumption but Richard Bool does make changes where he can to attempt to save energy and reduce costs.

Training: There is no evidence of staff training for energy management or energy saving opportunities.

Performance Measurement: The company currently carries out checks on invoices. There are no procedures in place to regularly monitor energy consumption.

Communicating: There are no communication channels within the organisation in relation to energy management, including the promotion of energy related issues.

Investment: There are low cost measures in place with small actions happening, such as light bulbs being changed as and when required.

We would recommend implementing a five-year strategic plan prioritising investment based on payback.

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July 2014

It is important to have a formal energy policy as it will communicate the company’s commitment to energy management. The policy needs to have the agreement and commitment of senior management. Without this commitment targets are unlikely to be reached, and lack of support could prevent the necessary changes being made within the organisation.

An Energy Policy should:    

Raise awareness and provide the basis for action in the workplace.

Stating targets and timescales for achievement.

Provide information on how these targets are to be achieved (this could be in the form of an action plan).

Have an ongoing review which will highlight whether goals have been successfully achieved.

An Energy Policy should include:    

A statement of commitment from senior management – this should be signed by the most senior person in the organisation.

A plan of implementation – details of how the policy objectives will be met.

Details of everyone’s involvement – this should make everyone’s responsibility and involvement clear.

Applicability – this defines which parts of the organisation are covered by the policy. Once an energy policy has been agreed and put into place this will help improve the other areas addressed by the energy management matrix such as Organising, Performance Measurement and Communicating.

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10 Energy Saving Initiatives Energy Policy Having a formal written energy policy enables a company to effectively monitor their energy usage so that they can make informed decisions to make changes.

Staff Awareness Training Staff members are important in saving energy so they must be made aware of wastage areas and be trained to operate equipment and controls correctly. Motivate staff – ask their opinions and encourage them to review their own working practices.

Energy Efficient Lighting By installing up to date energy efficient lighting you can improve the working environment and significantly reduce energy costs.

Timer devices Savings can be made by using timer sockets as they can be used on equipment that has occasional use but may be left on standby when not in use, such as visual and audio equipment.

Recommendations, Comments, General Advice (general advice for saving energy at work) Heating & Cooling Set your radiator or thermostat to reasonable levels. The aim is 21 degrees. Ensure radiators are not blocked by furniture or files, as they will absorb the heat. If it gets too hot in the winter, don’t open a window; try turning down the radiator first. Ensure all extractor fans are off overnight and when not required. Don’t leave doors open between areas of different temperatures. Do not use portable heaters. If it’s too cold report the problem to management. Keep doors and windows closed in air-conditioned areas. If you don’t you’re letting the cool air escape requiring further cooling.

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Lighting Try to use as much natural light as possible and ensure windows are kept clean. Switch off lights whenever you leave a room (toilet, meetings, lunch and evenings). Between your colleagues make sure the last to leave in the evenings is responsible for turning off all lights.

IT Equipment Activate your PCs Power Saving Device. Switch off computer screens when away from your desk (especially during lunch and meetings) and turn the whole PC off at night. Do not switch on computers and printers until you need them. Make sure you share printers between colleagues. Switch off photocopiers and printers at night. Purchase electrical equipment with a high energy saving value.

Kitchen Regularly defrost fridges to avoid wasting energy. You should also check the seals on your fridge/freezer to ensure that warm air is not getting in – the seals should be tight enough to hold a piece of paper securely when closed. Fit a SAVA plug to the fridge: when the thermostat on the appliance switches on the motor to pump the refrigerant around the system, full power is required to start the motor. However, once the motor is running full power is no longer needed. The SAVA plug senses this and reduces the flow of electricity to meet actual requirements.

SAVA plugs reduce running costs 20%. SAVA plugs cost £20.

Linked-In Epsilon posted a discussion on the Hotels Group and Hospitality Group on the “Linked-In” social media website appealing for contributions to compile a “TOP TEN LIST OF ENERGY SAVING STRATEGIES” for the Hotel & Hospitality industry. A total of 31 replies were received and are reprinted in the Appendices.

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11 Appendices (Appendix A) Weather Chart – Average Daily High and Low Temperature

Temp.

Month Over the course of a year the temperature typically varies from 4°C to 18°C and is rarely below 0°C or above 20°C. The warm season lasts from 16th June to 16th September with an average daily high temperature above 15°C. The hottest day of the year is 1 st August, with an average high of 18°C and low of 12°C. “Degree Day” data available from the Belfast meteorological station is utilised to quantify the projected energy savings for any of the measures recommended to mitigate heating and cooling energy consumption in the Hotel.

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11 Appendices (Appendix B) 0% Green Business Loan Scheme Investing in energy efficient equipment makes sound business and environmental sense, especially with the easy, affordable and flexible 0% green business loan scheme offered by the Department of Economic Development for Isle of Man businesses. The scheme has been designed to provide flexible financing options to all types of organisations seeking to make their operations more efficient and lower their energy costs.

The scheme offers a loan of 100% towards the cost of projects that improve energy efficiency and can be arranged from ÂŁ1,000 up to a maximum level of assistance of ÂŁ20,000 per project. New, more efficient equipment should lower energy bills and with payments calculated so that they can be offset by the anticipated energy savings, the financing option is designed to pay for itself.

Suitable projects for the scheme include lighting/lighting controls, compressed air systems/controls, variable speed drives/motors, heating/heating controls, insulation upgrades, heat recovery, pipe insulation and solar thermal systems. The repayment period for the loan is up to a maximum of 4 years with equal repayments due annually at the end of each year.

The Department of Economic Development may provide assistance to an eligible business where, in its opinion, the eligible business undertakes an economic activity in the Island. Eligibility for the 0% green business loan scheme is open for all business sectors and where projects will involve energy efficiency improvements in Isle of Man business premises. The Department of Economic Development will only consider an application for a 0% green business loan that has not been submitted for funding from another Government financial scheme for the same project.

The 0% green business loan scheme is at the discretion of the Department of Economic Development and each project will be assessed on its potential to deliver real energy savings with preference given to projects that provide the greatest reduction in CO2 emissions thereby assisting the Government in achieving its energy policies.

In order to apply for a 0% green business loan, we require a completed Application for Financial Assistance – F101e form signed by a director/principal on behalf of the company and the necessary supporting documentation. Supporting documentation must include a thorough project report detailing expected energy savings, background information on the company and audited accounts for the last three years (unless a start-up venture, then 3 years forecasts must be provided).

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Further detailed information on all aspects of the 0% green business loan scheme can be obtained by contacting energy@gov.im or 01624 682367.

Note: The Department may wish to take security on the assets of the company to protect any financial assistance provided. Assistance cannot be considered retrospectively for items of expenditure which have already been purchased. The applicant should be aware that the details of all financial assistance paid out under the scheme will be published in an annual report prepared by the Department of Economic Development which will also be laid before the Isle of Man Parliament.

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11 Appendices (Appendix C) Energy Performance Asset Rating

More energy efficient

Net zero CO2 emissions

â—„ 64

This is how energy efficient the Claremont Hotel is.

Less energy efficient

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11 Appendices (Appendix D) Tabulated Calculations ITEM

Recommendation and Key Actions

Fuel

Fuel Type

Conversion Factor

Grid electricity Natural gas

0.430 CO2e per kWh

Estimated Annual Savings

(£)

CO2 (tonnes)

0.1836 CO2e per kWh

Estimated Implementation Cost (£)

Payback % Return over Period Remaining life (Years) of Investment (%)

(kWh)

1.0

Implement energy policy

Electricity

2,162

6.9

15,982

Nil

0

n/a

2.0

Implement staff awareness training

Electricity

2,162

6.9

15,982

Nil

0

n/a

3.0

Implement shut down procedures

Electricity

2,162

6.9

15,982

Nil

0

n/a

4.0

Supply & install ‘Energy Eye’ monitoring.

Electricity

2,162

6.9

15,982

1,230

0.6

n/a

5.0

Upgrading lighting & controls (Building Evolution) Improvements to heating & controls (Building Evolution) Weather compensation controls (Paul Wheeler and Manx Controls)

Electricity

MULTIPLE OPTIONS (SEE APPENDIX M)

Gas

MULTIPLE OPTIONS (SEE APPENDIX M)

6.0 7.0

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Gas

2,192

6.8

37,034

10,462

4.8

419%

July 2014

Variable speed heating pumps (Mannin Gas Services) Pipework insulation (Kings Thermal Insulation)

8.0 9.0 10.0

CHP installation (SAV systems)

11.0

HIU flat station installation serving Kitchen areas (SAV systems) HIU flat station installation serving Guest suites (SAV systems)

12.0

Electricity

1,558

4.95

11,520

5,000

3.2

623%

Gas

1,274

3.95

21,515

2,930

2.3

1,087%

Electricity

16,343 58.0

G 417,587 E 206,626

130,000

8.0

314%

Gas

1,273

3.95

21,515

3,500

2.75

909%

Gas

6,365

19.75

10,757

20,000

3.14

796%

Summary table (by fuel source) NOTE: excludes items 5.0 & 6.0 from the above table.

Fuel

Supply

Potential

Potential

Pence

kWh

Tonnes Co2

Total kWh

Total kWh

Total CO2

Cost

Savings

Savings

Per kWh

Per £1,000

Per £1000

Savings

Savings

Savings

(£)

(£)

(%)

(kwh)

(%)

(Tonnes)

Electricity

136,230

26,549

40.5

13.53

7,391

3.18

282,074

58%

n/a

Gas

36,892

11,104

26%

5.92

16,892

3.10

508,408

71%

n/a

Total

173,122

37,653

34.9

9.00

111,111

n/a

790,482

66%

125

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11 Appendices (Appendix E) Schedule of existing split DX devices

Chillphase Services are the company responsible for the service and maintenance of all the refrigeration and air-conditioning systems at the Claremont Hotel, Douglas. Our company FGas certificate No. REF1007931 was issued 6th Feb 2012 and expires 6th Feb 2015.

The fitted and serviced air conditioning units are all FGAS compliant Refrigerant R407C (ground floor lounge R410A) The air conditioning units fitted at the Claremont Hotel Basement Function room 3 x Mitsubishi Twin split systems: these are 1 x PUH-P4YGAA Outdoor Units with 2 x PMH-P2BA one way blow ceiling cassettes.R407C 2 outdoor units mounted under fire escape stairs 1 outdoor unit mounted on flat roof to the rear of the kitchens Ground Floor Restaurant 4 x Mitsubishi Twin Split systems: 1 x PUH-P4YGAA Outdoor units, 2 x PMH-P2BA ceiling cassettes R407C 2 x outdoor units under fire escape stairs 2 x outdoor units on flat roof rear of kitchens Ground Floor Lounge area 1 x Mitsubishi twin split system R410A 1 x PUHZ-RP100YHA4 Outdoor unit 2 x SLZ-KA50VA 600 X 600 Ceiling Cassettes Outdoor unit mounted on wall to the rear of the lounge area Rick Thompson Chillphase limited

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11 Appendices (Appendix F) Thermal camera imaging results (guest suite 102)

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11 Appendices (Appendix G) Temperature logging results (guest suite 102)

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11 Appendices (Appendix M) Building Evolution limited proposals

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2014 01/08/2014 14:24 - Screen Clipping

Claremont Hotel Energy Report

Nigel Stafford Building Evolution Ltd Ballamin Farm, Lhen Road, Bride, Isle of Man, IM7 4BG Tel: 01624 882040, Email: info@building-Evolution.co.uk www.building-evolution.co.uk

Building Evolution Ltd

Claremont Hotel Energy Report

July 2014

Claremont Hotel Contents 1

Scope........................................................................................................................................................................................................................................ 3

2

Executive Summary.................................................................................................................................................................................................................. 3 2.1

2.1.1

Stand Alone Solution................................................................................................................................................................................................ 3

2.1.2

Room Networked BMS Solution .............................................................................................................................................................................. 4

2.1.3

Cost and Savings....................................................................................................................................................................................................... 4

2.2

3

Guest Rooms .................................................................................................................................................................................................................... 3

Basement Lighting............................................................................................................................................................................................................ 5

2.2.1

Rear Staff areas. ....................................................................................................................................................................................................... 5

2.2.2

Function Rooms ....................................................................................................................................................................................................... 6

2.3

Basement Function Rooms Air-conditioning ................................................................................................................................................................... 6

2.4

Ground Floor Lounge and Restaurant.............................................................................................................................................................................. 7

2.4.1

Lighting..................................................................................................................................................................................................................... 7

2.4.2

Air-conditioning ....................................................................................................................................................................................................... 7

Detailed Report........................................................................................................................................................................................................................ 7 3.1

Guest Rooms Stand Alone Solutions................................................................................................................................................................................ 7

3.1.1

Heating Control for Rooms with Radiators only. ..................................................................................................................................................... 7

3.1.2

Heating Control for Rooms with Air-Conditioning................................................................................................................................................... 9

3.2

Networked Rooms - Building Management Solution .................................................................................................................................................... 10

3.2.1

BMS Infrastructure................................................................................................................................................................................................. 10

3.2.2

BMS - Heating Control for Rooms with Radiators only.......................................................................................................................................... 10

3.2.3

BMS - Heating Control for Rooms with Air- Conditioning...................................................................................................................................... 12 1

Building Evolution Ltd 3.2.4 4

Lighting Control...................................................................................................................................................................................................... 17

4.1

Possible management plan to add standard air-conditioning into 18 rooms – No Keycard......................................................................................... 18

4.2

Standalone Keycard Solution for Rooms with Radiators and Air-conditioning. ............................................................................................................ 19

4.2.1

Option 2 ................................................................................................................................................................................................................. 19

4.2.2

Option 3 ................................................................................................................................................................................................................. 20

Networked Rooms – Building Management Solution.................................................................................................................................................... 21

4.3.1

Option 4 ................................................................................................................................................................................................................. 21

4.3.2

Additional Wireless Possibilities ............................................................................................................................................................................ 21

Basement Function Rooms and Guest WCs and Corridors.................................................................................................................................................... 22 5.1

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Estimated Costs and Savings.................................................................................................................................................................................................. 17

4.3

5

Claremont Hotel Energy Report

Lighting........................................................................................................................................................................................................................... 22

5.1.1

Situation ................................................................................................................................................................................................................. 22

5.1.2

Problems ................................................................................................................................................................................................................ 22

5.1.3

Possible Solutions .................................................................................................................................................................................................. 23

5.1.4

Estimation of Present Lighting Energy Costs ......................................................................................................................................................... 23

Basement Staff Areas............................................................................................................................................................................................................. 24 6.1

Situation......................................................................................................................................................................................................................... 24

6.2

Problems ........................................................................................................................................................................................................................ 25

6.3

Possible solutions........................................................................................................................................................................................................... 25

6.4

Estimation of Present Lighting Energy Costs ................................................................................................................................................................. 25

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Building Evolution Ltd

Claremont Hotel Energy Report

July 2014

1 Scope The aim of this report is to provide the client with options for allowing energy savings throughout different areas of the hotel. It discusses the problems noted with regards existing lighting, heating and air-conditioning and identifies a number of opportunities for improvement. In some cases, while the solutions suggested offer improvements in energy usage, they also as a consequence provide improved guest comfort and convenience as well as opportunities for improvements in overall building management.

There are many different areas of the hotel and of course many areas where we can search for energy saving opportunities. Unfortunately, it has not been possible to carry out a 100% top to bottom survey and analysis of the hotel, but it has instead been decided to focus on a number of key areas. These areas are, guest rooms, basement functions rooms and other basement rear areas, ground floor lounge and restaurant.

2 Executive Summary 2.1 Guest Rooms Looking at the present situation, the guest rooms have a very basic form of heating control with Thermostatic Radiator Valves (TRVs) on all radiators and then heating turned on and off with a time-clock in the boiler room. Heating of rooms is therefore purely on a time bases and in no way linked to the actual occupancy state of the rooms. There are therefore good opportunities for energy saving by linking the heating of rooms to occupancy.

As we are aware that the hotel management are probably going ahead with installing air-conditioning in 18 rooms we have taken this scenario into consideration.

Two basic solutions were looked at, a standalone solution and a networked BMS solution.

2.1.1

Stand Alone Solution

The first is a standalone solution where each room has wireless controls for air-conditioning linked to the keycard switch.

The second standalone solution is where both air-conditioned rooms and rooms with radiators have wireless controls controlled by a keycard. The rooms heating or cooling is therefore dependent on room occupancy. With this situation the boiler room time-clock still determines when all radiator heating is on or off but the amount of heat entering a room is controlled by the use of the keycard.

In this standalone scenario air-conditioning, which we presume will also provide heating, can only be enabled or disabled by the key-card meaning that airconditioning is turned off when the room is unoccupied.

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Building Evolution Ltd

2.1.2

Claremont Hotel Energy Report

July 2014

Room Networked BMS Solution

In this solution all rooms heating or cooling is controlled through a Building Management System which also controls the heating pumps in the boiler rooms.

Greater savings are possible with this solution as there is far better control of heating and air-conditioning, plus the system is linked to the hotel management Fedelio booking system.

2.1.3

Cost and Savings

Firstly, it is important to note that all calculations are based on certain assumptions, the most important of which is the amount of Heat Gain i.e. heat generated by the building other than through the heating system. Following conversations with Epsilon Consultants and from room temperature readings provided from ISO IOM Ltd it is thought that heat gain is relatively high and so a figure of 7.5 degrees has been used. However, in order to achieve a more accurate Heat Gain figure a more extensive survey and building model would need to be carried out.

When comparing savings we can firstly compare with the present situation where all room have radiators on the time-clock and also compare against a more likely base scenario which we call Option 1 where the hotel has 18 rooms with air-conditioning and 36 rooms still on the present system.

Option 1 is the standalone scenario where there is no keycard system and we presume that the air-conditioning would be left running constantly.

Option 2 is the standalone scenario where rooms with air-conditioning have a keycard system but remaining rooms with radiators just stay on the present time-clock.

Option 3 is the standalone scenario where all rooms have a keycard to control radiator heating and air-conditioning.

Option 4 is where all rooms have a keycard and the rooms are networked onto a BMS controlling radiators and air-conditioning.

Due to the fact that gas meter readings are for the domestic hot water and heating combined and that we have no information on the actual gas used by just the heating we cannot provide savings in terms of pounds. This has been discussed with Epsilon Consultants who will provide their estimations of financial savings in their report.

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Building Evolution Ltd

Scenario Option 1: Air-conditioning installed in 18 rooms, remaining rooms keep radiators on a time-clock normal, AC on permanently with heating setpoint of 21 degrees and cooling setpoint of 23 Degrees – NOTE: No Keycard Option 2: Air-conditioning installed in 18 rooms but with Key-card system for occupancy detection. Remaining 38 rooms keep radiators on a time-clock only Option 3: Air-conditioning installed in 18 rooms and radiator wireless heating controls installed in 38 rooms. Keycard system turns AC on/off and alters radiators between two setpoints Option 4: All rooms networked onto a BMS system for heating and cooling control

Claremont Hotel Energy Report

July 2014

% Energy Saving Compared to Present Situation 7% increase in energy usage

% Energy Saving Compared to Option 1 N/A

Budget Costs

14% Saving in energy usage

20% Saving in energy usage

£10,000

17% Saving in energy usage

23% Saving in energy usage

£45,000

28% Saving in energy usage

33% Saving in energy usage

£60,000

No costs as no additional controls provided

2.2 Basement Lighting The hotel has already made a start in replacing some lights with LEDs which would have helped reduce energy costs. However many areas could still be upgraded to LED to cut energy costs further.

Lights in many areas are often left switched on when no one is using the room and in some areas this is on 24 hours a day 365 days a year.

Proposals for reducing lighting energy costs and also providing better control are suggested.

2.2.1

Rear Staff areas

During the original hotel conversion in many areas there was no major rewiring of lighting circuits to take into account new room and corridor layouts. The result is that a number of separate rooms and corridors share the same switched lighting circuit. So for example if a corridor light is on then so are the lights in one or more store rooms.

It is therefore proposed to install occupancy sensors in all areas and replace all lighting with LEDs.

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Claremont Hotel Energy Report

July 2014

An annual saving of £1353 has been estimated.

Budget cost for this solution is: £5159 Estimated payback period is: 4 years based on a constant electricity price of 13.53 pence per kWh over that period.

2.2.2

Function Rooms

Some lights in the functions rooms have been replaced with dimmable LED lights, however, the existing lighting system is unable to provide proper dimming for LEDS and so lights have a tendency to flicker. This causes difficulty for staff and guest when trying to adjust them.

Fluorescent trough lights in the function reception area could be replaced with LED strip lights because these are only switched on and off. However, because trough lighting in the main function rooms need to be dimmed these cannot be replaced with LED strip lights because the existing lighting system would not be able to do dim them. It is therefore proposed to change the lighting system to a more modern system that allows dimming of LED lighting and replace existing fluorescent trough lights with White LED Strip Lights.

The system would also include occupancy sensors for turning on lights when people are just passing through or only in the room temporarily.

The system could also be controlled remotely through a graphical user interface on a tablet, smartphone or PC web browser. So new lighting scenes can easily be setup and stored by staff for different events.

Although not an energy advantage the new system also has the capability, with no additional costs in control gear, of being able to provide colour changing effects to RGB coloured strip lights if these chosen in some areas instead of white.

Guest toilets and corridors would be put on occupancy sensors however one guest corridor which includes the WCs lobby area could be linked with the functions rooms so lights are held on during a function.

For this solution it is estimated that an annual saving of £2093 could be achieved.

Budget costs are £12,500 Payback period is estimated at 6 years based on a constant electricity price of 13.53 pence per kWh over that period.

2.3 Basement Function Rooms Air-conditioning The air-conditioning in the basement function rooms is occasionally left on. There is a separate time-clock but this can keep the air-conditioning running when no-one is using the function rooms. The proposed new control system for lighting in the function rooms could also be used to turn off air-conditioning with the occupancy sensors and turn it on and off through the tablet, smartphone etc.

The budget cost for this would be an additional £200 on the cost of the lighting control system.

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Building Evolution Ltd

Claremont Hotel Energy Report

July 2014

2.4 Ground Floor Lounge and Restaurant 2.4.1

Lighting

Lighting in the main restaurant is LED controlled by a good lighting control system designed for dimming LED lights. Lights are turned on and off by staff. It is not known whether there are times when lights are left on when the restaurant is closed, however, lights in the widow bays are on even when the area is already very bright with incoming sunlight.

Further study could be carried out to look at linking these lights with light level sensors therefore only turning them when natural light drops below a set threshold.

2.4.2

Air-conditioning

Air-conditioning is on a time-clock and can be turned on and off manually. Due to their age it is not possible to interface these units with a BMS system to provide improved control capabilities, other than just to turn on and off. In fact, although not an energy issue, according to Mitsubishi the units are very old and will no longer be supported for spare parts after January. We would therefore suggest that the hotel confirms this themselves with their airconditioning maintainer.

3 Detailed Report This part of the report discusses issued raised in the Executive Summary but provides greater detail.

3.1 Guest Rooms Stand Alone Solutions 3.1.1

Heating Control for Rooms with Radiators only.

3.1.1.1 Current Situation At present, all rooms are heated by hot water radiators fed from one of two boiler rooms in the basement. A time-clock fitted to the control panel in the boiler room determines when the rooms are heated. All radiators in guest rooms have Thermostatic Radiator Valves (TRVs) fitted which need to be manually adjusted in order to regulate the room temperature. The time-clock settings are sometimes adjusted to take into consideration additional guest requirements, e.g. flight crew arriving very late or very early. Time-clocks are also adjusted in the summer to try and save energy.

3.1.1.2 Problems This type of heating control is very basic as room heating is based only on a time basis rather than an individual demand basis. As it is very unlikely that a room TRV is turned down when a guest either leaves the room or checks out of the hotel the TRVs are therefore kept in a constant setting. This will be the setting that gives the warmer comfort room temperature. This means once the time-clock has put the heating on the room will be heated to the comfort temperature regardless of whether the room is occupied or even checked out.

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Building Evolution Ltd

Claremont Hotel Energy Report

July 2014

3.1.1.3 Needs A more economical method of controlling the heating in guest bedrooms is required. One that prevents rooms from being heated needlessly when a guest is not in the room but also one that can automatically put the room to the comfort temperature when the room is occupied. Also, as some guests vary in what they feel is a comfortable room temperature, a simple method for them to make slight adjustments to the room temperature is required, so providing additional comfort and satisfaction.

3.1.1.4 Solution In order to address the needs stated a wireless heating control solution is proposed. This solution treats each room as a standalone system for controlling and regulating the room temperature based on room presence or absence through a Keycard. A wireless solution has the advantage of minimising any additional wiring therefore reducing installation costs and room down time during installation. Also, the wireless devices selected will utilize a unique energy harvesting technology meaning that they will be able to operate without the need for batteries and therefore reduce maintenance requirements.

Each room would have: (1) A wireless Key Card Switch fitted inside the room.

(2) A wireless room Temperature Sensor with dial to allow the user to make a simple manual offset to a default Comfort Temperature.

(3) A wireless proportional controlled Radiator Valve Actuator, which replaces the TRV, and opens or closes the radiator valve between 1 and 100%.

This device is battery powered.

(4) A wireless Message Server. This device is mains powered.

3.1.1.5 Operation When a guest enters the room they place the room door Key Card into the Key Card Switch. The Key Card Switch sends a wireless message to the Message Server indicating that the room is occupied. The Message Server will then set the room to the occupied (i.e. Comfort) setting and send a wireless signal to adjust the radiator valve so bringing the room to the required Comfort temperature. The Message Server will constantly determine the proportional control value to be sent to the radiator valve actuator by comparing the room temperature value received from the temperature sensor and the preprogrammed Comfort Set Temperature (e.g. 21 degrees). It also takes into account any offset to the Comfort Set Temperature sent from the user dial on the Temperature Sensor.

When the guest leaves the room and takes the Key Card out of the switch, the Message Server sends a new control value to the radiator valve actuator to put the room to a Lowered temperature, e.g. 19 degrees.

3.1.1.6 Point to Note It should be noted that with this standalone solution the time clock in the boiler room still controls the pumping of hot water around the building, however the controls in each room will determine how much heat is put into the room. If all rooms are at their required set temperature and the time clock is still on

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Claremont Hotel Energy Report

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then the hot water will still be circulated around the system although not passing through room radiators and heating the rooms. Some heating losses are therefore still occurring.

3.1.2

Heating Control for Rooms with Air-Conditioning

3.1.2.1 Current Situation It is understood that the Hotel management are seriously considering having air-conditioning installed in certain rooms. This will provide guests with greater comfort especially in summer where front facing rooms with larger windows get greater solar gain and may tend to overheat.

3.1.2.2 Problem While the primary concern for the hotel management is guest comfort they have accepted that this would come at the expense of greater overall electricity costs in running the air-conditioning.

It is possibly that when a guest leaves the room they will leave the air conditioning running even though they may be out of the room for many hours, plus a rooms air-conditioning could be left running even if the room is checked out and may not have a guest booked till the following day.

3.1.2.3 Needs A solution is therefore required that can ensure that the energy usage by the air-conditioning is reduced when the room is unoccupied. So saving on airconditioning running costs.

3.1.2.4 Solution The solution proposed assumes that any room with air-conditioning installed will have its room radiators shut off completely and that heating of the room will only be carried out with the air-conditioning unit. Also, it is presumed that the air-conditioning unit will have its own control panel or remote control for use by the room occupant.

In order to meet the needs stated above we wish to propose a simple wireless control solution that utilizes the same Key Card Switch as previously proposed for the control of room heating.

Each room will have: (1) A wireless Key Card Switch fitted inside the room.

(2) A wireless to Air-Conditioning interface unit.

3.1.2.5 Operation When the Key Card is fitted into the Key Card Switch the Key Card Switch sends the wireless “Room Occupied” message to the air-conditioning wireless interface. This enables the air-condition unit and allows it to be turned on from the control panel.

When the occupant leaves the room and removes the Key Card a “Room Unoccupied” message is sent that disables the air-conditioning unit.

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3.1.2.6 Point to Note The room temperature is maintained purely by the air-conditioning and is only done when the Key Card is in the Key Card Switch.

Also, following correspondence received from the prospective Air- Conditioning installation company we note that that they intend to use the Mitsubishi range with a room indoor unit model number PEFY-P32VMS. However, I have been informed by Mitsubishi that this model number would not be compatible with the wireless to Air-Conditioning interface unit proposed. They say that in order to have compatibility the latest model number should be ordered which would be model PEFY-VMS1.

3.2 Networked Rooms - Building Management Solution A building management system (BMS) offers a further enhancement on the stand-alone solutions described above. It allows the separate rooms and building functions such as heating and lighting to be controlled in an even more energy efficient way so further reducing energy costs. It will also offer additional benefits such as central control and monitoring of rooms, monitoring of building energy performance and automatic fault reporting, from any computer, tablet or smartphone, from either inside or outside the building.

3.2.1

BMS Infrastructure

A BMS infrastructure would basically consist of: (1) A single cable (Bus Line) running along each floor through the corridors but in most cases not entering rooms. On each floor the bus line would terminate in an enclosure in a store room.

(2) Along the bus cable would be a number of wireless gateway devices which allow bi-directional communication with wireless devices in nearby rooms.

(3) A separate BMS network switch located in the IT room behind ground floor office (4) A BMS controller located in the IT room and connected to the BMS switch (5) Network cable linking the switch to the bus line on each floor.

(6) A bus line connecting the boiler rooms in the basement along with a network cabling linking to the BMS network switch.

3.2.2

BMS - Heating Control for Rooms with Radiators only

3.2.2.1 Situation This is an alternative to the standalone solution for rooms with radiators only.

3.2.2.2 Problems The standalone heating solution previously discussed goes a long way in reducing energy costs in guest rooms. However, certain wastage would still occur.

As mentioned earlier, if all rooms are at their required set temperature and the time clock is still “On� then the hot water will still be circulated around the system although not passing through room radiators. This is a waste of energy.

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Also, with the standalone solution, the Key Card can only put the room temperature to two different settings, that is Comfort Temperature (e.g. 21 degrees) when occupied and a Lowered Temperature (e.g. 19 degrees) when unoccupied. If the room is not in use for a day or more then room is still being kept at a higher temperature than is probably necessary.

3.2.2.3 Needs A method is required for only allowing hot water to be circulated around the building when room heating demand requires it rather than purely on the time of day.

Also, if two lower temperature settings were possible for when the room is checked out and when the room is out of use for a longer period, e.g. for maintenance or decoration, then even greater energy saving could be achieved.

3.2.2.4 Solution A BMS system would monitor all individual room heating controls and provide control to the boiler room so that hot water is circulated on a heat demand basis rather than on a time demand basis.

The BMS could also interface with the Fidelio Hotel booking system so that Fidelio can send a check-in / check-out message to the BMS. The BMS can then automatically set a room into a lowered Standby temperature of say 17 degrees.

As the BMS would also provide a user interface that can be viewed over any computer web browser it would also be possible for the room temperature and settings to be monitored and controlled staff, e.g. perhaps to respond to guest’s requests or inquiries on the room temperature or maybe to set the room to a Frost setback temperature if the room is out of action for a much longer period.

A further advantage is that the battery powered radiator valve actuator is capable sending a wireless message when its battery is getting low. This could be used by the BMS to alert maintenance staff, e.g. via email.

Rooms would have the following: (1) A wireless Key Card Switch fitted inside the room.

(2) A wireless room Temperature Sensor with dial to allow the user to make a simple manual offset to a default Comfort Temperature.

(3) A wireless proportional controlled Radiator Valve Actuator, which replaces the TRV, opens or closes the radiator valve between 1 and 100%. Battery powered.

(4) For some rooms it may also be necessary to add a wireless repeater to ensure adequate wireless coverage.

3.2.2.5 Operation From a room occupant point of view the room temperature is controlled in the same way as with the standalone solution, i.e. by use of the Key Card and manual adjustment of the dial on the temperature sensor.

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From a technical point of view however the difference is that all wireless devices communicate with the main BMS controller via the wireless / bus gateways in the corridors and the BMS takes over the regulation of all room temperatures.

3.2.2.6 Point to Note In the BMS solution there is no need for the Message Server that resides in each individual room in the standalone solution. This is because the one BMS Controller does the job of multiple Message Servers.

In order to control heating pumps from the BMS a modification to each of the existing boiler room control panels is required.

Initial investigations have shown that there is some documentation on just one of the panel’s wiring but even this looks to be inaccurate. Further investigation is therefore required to determine the exact wiring of the boiler room.

3.2.3

BMS - Heating Control for Rooms with Air- Conditioning

3.2.3.1 Situation This situation is an alternative scenario to the standalone solution for rooms with air-conditioning only as described in 3.2.

3.2.3.2 Problem The standalone air-conditioning solution described in 3.2 goes a long way in reducing energy costs in guest rooms. However, certain wastage would still occur. On particularly warm days in summer the room temperature could get quite warm if the air-con is turned off and it would therefore use a lot of energy in trying to re-cool the room to a Comfort temperature once occupied again.

Also, as it is assumed that the air-conditioning will also provide the heating then if it is turned off then the room could be allowed to cool down too much.

Also in standalone solution, the wireless/ air-conditioning interface unit only allows the Key Card switch to enable or disabled the air-conditioning unit.

Once enabled it still needs to be turned on from the air-conditioning user control panel. This is inconvenient for the guest and they may not realise the airconditioning is turned off at the panel.

3.2.3.3 Needs As well as the Comfort Setpoint, the air-conditioning is capable of being put into two additional temperature settings of Standby and Economy.

A means is therefore required to automatically set the room to these other Setpoints rather than turning the air-conditioning off completely.

3.2.3.4 Solution The Mitsubishi air-conditioning system being considered has its own data communications network to allow the indoor units and controls to communicate with the outdoor unit.

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Figure 1. Simplified diagram of the proposed Mitsubishi Air-Con System

By connecting the Mitsubishi network to the BMS all control signals would become available on the BMS which -would allow the BMS to control and monitor the air-conditioning and integrate its control with devices not on the Mitsubishi system e.g. Key Card Switch and Fedelio.

To achieve this an additional gateway device between the Mitsubishi network and the BMS network is required.

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Figure 2. Mitsubishi system connected to a BMS system.

(Note. BACnet is just the name of the communications protocol used on the BMS)

Each room will have just require a wireless Key Card Switch.

The BMS would have the interface with the Fedelio system as well as the user interface on any computer.

3.2.3.5 Operation The air –conditioning is kept switched on. The Fedelio system will provide the “Checked-in” / “Checked –out” status to the BMS. The BMS will then set the room air-conditioning to the Economy Setpoint or the Standby Setpoint.

When the guest inserts the Key Card the Wireless Key Card Switch communicates with the BMS via the Wireless/ Bus Gateway in the corridor. The BMS then puts the room air-conditioning into the Comfort Setpoint.

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When the guest removes the Key Card the BMS will put the air-conditioning to the Standby Setpoint.

For example, the cooling Setpoints may be as follows: Comfort Cooling – 23 Degrees Standby Cooling – 25 Degrees Economy Cooling – 27 Degrees As the air-conditioning also provides heating, the heating Setpoints will also be altered e.g.

Comfort Heating – 21 Degrees Standby Heating – 19 Degrees Economy Heating – 17 Degrees

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Figure 3. Heating and Cooling Setpoints For Air-Conditioning (for Night-time mode read Economy)

The result is that the air-conditioning will not be allowed to waste energy by being left running at the Comfort Setpoint when the room is unoccupied, plus because the air-conditioning is not turned off the room will also never be allowed to get too hot when it is unoccupied.

Instead the guest will enter a room which is already starting to be cooled and will more quickly reach the Comfort Setpoint once the Key Card is used.

There will also be the possibility of turning the room air-conditioning off through the BMS. 3.2.3.6 Point to Note In the Standalone solution for rooms with air-conditioning, i.e. if no BMS, the Key Card controls the air-conditioning via a wireless to air-conditioning interface located in each room and this only allows the Key Card to turn the air-conditioning on or off.

With the BMS solution the wireless to Air-conditioning interface is not required.

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3.2.4

Claremont Hotel Energy Report

July 2014

Lighting Control

3.2.4.1 Current Situation Good efforts have already been made to reduce the lighting energy costs, with all rooms now having their lights replaced with LED. The hotel room’s lighting have been traditionally wired e.g. with no intelligent or semi intelligent lighting control to take into account presence or absence in a room.

3.2.4.2 Problems While replacing lights with LED will have had a major impact on lighting energy costs there are still times when energy is being wasted. This is mainly when guest or staff leave the room but leave lights turned on.

3.2.4.3 Needs A simple solution is required to prevent guests or staff from leaving lights on when they leave the room. However, any solution needs to minimise installation costs and room downtime during installation.

3.2.4.4 Solution In order to address the needs stated we wish to propose a simple wireless lighting control solution that utilizes the same Key Card Switch proposed for the control of room heating / air-conditioning. Also required will be a small wireless switching actuator that will be installed in line with the main incoming lighting circuit.

3.2.4.5 Operation When the Key Card is fitted into the Key Card Switch the Key Card Switch sends the “Room Occupied” message which is received by the wireless switching actuator. The actuator switches and enables the main incoming lighting circuit. Room occupants will then turn lights on and off as normal with the existing light switches.

When the occupant leaves the room and removes the Key Card the Key Card Switch sends the “Room Unoccupied” message and the main lighting circuit is disabled so turning off all lights. A switch off time delay can be set up in the lighting actuator giving occupants the chance to leave the room before all lights are disabled.

4 Estimated Costs and Savings At this stage we are only able to provide budget costs for the solutions discussed. We can then help hotel management to more clearly define their exact requirements.

Estimated savings very much depend on the thermal characteristics and heat gains of the building. As no figures on actual measured heat gains are available these have therefore had to be estimated.

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Heat gains have been estimated to be about 7.5 degrees. This is based on the fact that room temperatures have been measured as being quite high ( figures from Kevin at ISO IOM give an average of 26 degrees with outdoor temperatures of 9 degree). Some of this will be attributed to solar gain but my opinion is that much of this will be due to the fact that as a hotel which is operating 24/7 the building will produce a relatively constant source of heat. Also, there seems to be a strong possibility that domestic hot water pipes that run through the hotel may not be particularly well insulated, therefore providing a further significant source of heat.

From information provided by Epsilon Consultants it would appear that the heating is only switched on for 9 hours a day. If this is kept like this all year then this is would already be providing significant savings. However, it is understood that these time-clock settings are not kept all year round and are adjusted to take into account sudden guest requirements or colder weather.

Energy savings are worked out using daily Degree Day data for 36 months from 1st July 2011 to 16 July 2014 provided by the weather station at Ronaldsway.

Degree Days are widely used in the energy industry for calculations relating to the effect of outside air temperature on building energy consumption.

"Heating degree days", or "HDD", are a measure of how much (in degrees), and for how long (in days), outside air temperature was lower than a specific "base temperature" (or "balance point"). They are used for calculations relating to the energy consumption required to heat buildings.

"Cooling degree days", or "CDD", are a measure of how much (in degrees), and for how long (in days), outside air temperature was higher than a specific base temperature. They are used for calculations relating to the energy consumption required to cool buildings.

For further introduction and explanation of Degree Days please see www.degreedays.net.

Heating Degree Days for the present situation with heating of radiators in all rooms controlled by the time-clock are: Present Situation Degree Days with Radiators on Time-clock

Rooms 56

Degree Days 189151

4.1 Possible management plan to add standard air-conditioning into 18 rooms – No Keycard.

In order to estimate savings it has been assumed that the hotel management will go ahead with a plan to install air-conditioning in 18 guest rooms. This will leave 38 rooms on the present heating time-clock. Energy saving have therefore been calculated by looking at energy usage with 38 rooms staying as they are now, i.e. With radiators on a time-clock, and 18 rooms with air-conditioning that is left running permanently (i.e. no occupancy detection with Keycard). The time-clock settings used in the model are shown in Epsilon Consultant’s report.

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Degree Days estimated for this option are: Option 1 – Air-conditioning installed in 18 rooms, remaining rooms keep radiators on a time-clock normal, AC on permanently with heating setpoint of 21 degrees and cooling setpoint of 23 Degrees Rooms Degree Days Rooms with RADs only on Time-clock 38 128353 Rooms with AC On All Time Heating 18 71690 Rooms with AC On All Time Cooling 18 2999 Total 203042 Note: Degree days (energy used) has increased by about 7% by installing air-conditioning as energy is also required for cooling.

4.2 Standalone Keycard Solution for Rooms with Radiators and Air-conditioning.

4.2.1

Option 2

The following solution is a standalone Keycard system controlling air-conditioning in 18 rooms. Turning Air-conditioning on/off only. The remaining 38 rooms keep their radiators on the existing time-clock.

Option 2 - Air-conditioning installed in 18 rooms but with Key-card system for occupancy detection. Remaining 38 rooms keep radiators on a timeclock.

Rooms Degree Days Rooms with Radiators only on Time-clock 38 128353 Keycard Rooms with AC On Heating 18 33456 Keycard Rooms with AC On Cooling 18 1399 Total 163208 Annual Saving compared to Option 1 20% Annual Saving compared to Present 14%

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It is estimated that there will be an annual energy saving of around 14% when compared to the present situation.

It is estimated that a 20% energy saving can be made compared to Option 1. Notice that using a keycard system with the air-conditioning will reduce energy used by an estimated 53%.

The budget cost for this control solution is ÂŁ10,500 Due to the fact that we do not know what proportion of the gas bills are spent on heating rooms we are unable to provide an estimated payback period.

Epsilon Consultants will however hopefully be able to provide this figure.

4.2.2

Option 3

The following option is a standalone Keycard system controlling air-conditioning in 18 rooms, turning air-conditioning on/off only, and wireless controls controlling radiators in 38 rooms with a comfort and a standby setpoint of 21 and 19 degrees respectively.

Option 3. Air-conditioning installed in 18 rooms and radiator wireless heating controls installed in 38 rooms. Keycard system turns AC on/off and alters radiators between two setpoints.

Keycard Rooms Radiators Only Keycard Rooms with AC On Heating Keycard Rooms with AC On Cooling Annual Saving compared to Option 1 Annual Saving compared to Present

Rooms 38 18 18 Total

Degree Days 121441 33456 1399 166038 23% 17%

Budget costs are ÂŁ46,500 Due to the fact that we do not know what proportion of the gas bills are spent on heating rooms we are unable to provide an estimated payback period.

Epsilon Consultants will however hopefully be able to provide this figure.

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4.3 Networked Rooms – Building Management Solution 4.3.1

Option 4

The following option provides a BMS system to provide control of heating and cooling in all rooms. A combination of a Keycard and Micros Fedelio changing the room between Comfort, Standby and Economy set points. Rooms are also put to the lower setpoint by the BMS for 6 hours at night e.g. between 11pm and 5am.

Option 4: All rooms networked onto a BMS system for heating and cooling control.

Networked Keycard Rooms Radiators Only Networked Keycard Rooms with AC On Heating Networked Keycard Rooms with AC On Cooling Saving compared to Option 1 Saving compared to Present

Rooms 38 18 18 Total

Degree Days 91196 43198 11423 135536 33% 28%

Budget costs for this solution are £60,000 Due to the fact that we do not know what proportion of the gas bills are spent on heating rooms we are unable to provide an estimated payback period.

Epsilon Consultants will however hopefully be able to provide this figure.

The above figure includes the cost of the Micros Fidelio Interface. Micros have said that the cost of the interface is £1515.30 and there is also a monthly support cost of £30.30 per month (not included), they will also need a day’s remote Interface time to setup and configure the Interface. This should be charged to the hotel direct from Micros and should be confirmed by the hotel management.

4.3.2

Additional Wireless Possibilities

Wireless technology offer possibilities to extend the system within each room to provide even greater control. For example, wireless window contacts can automatically set back the heating or air-conditioning if a window is left open and then restore the room to its proper setting when the window is closed. A Key Card switch could also enable and disable the power to the TV or other electrical devices so preventing them being left on standby or for safety purposes.

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Wireless blind actuators could automatically cloze window blinds to provide shading when the room is unoccupied so preventing over heating from solar gain. This means that any air-conditioning does not use as much energy trying to maintain a cooler room. Blinds could be opened automatically when the Key Card is inserted in to the Key Card Switch.

5 Basement Function Rooms and Guest WCs and Corridors.

5.1 Lighting 5.1.1

Situation

At present certain lights have already been replaced with LEDs which will have helped reduce energy costs.

In the function reception area (as you come down the stairs from the hotel reception) lights are controlled manually from switches located in the store room under the stairs. Switches here also control the lights to the Guest WCs and the WC corridor off the reception area.

Most lights in this reception area are turned on in the morning and left on all day till possibly around 11 or 12 pm at night. It is presumed that the WC and WC corridor lights are all turned on for the same period.

Lights in the Guest WCs and the Guest corridor at the far end of the building appear to be controlled only by emergency key switches. These lights are left on 24 hours a day 365 days a year. WC extractor fans are connected to the light circuits so these are also running 24/7.

In the function rooms, lights are controlled by a mixture of a Rako Lighting System that provide scene control for some of the lights and standard wired switches and dimmers to control others.

All trough lighting in the function rooms are T5 fluorescents.

5.1.2

Problems

Lights being left on when the rooms are not being utilized results in higher than necessary energy cost.

Function room celling pendent lights have been replaced with LED bulbs, however, because these are controlled by the original standard dimmers, which are unsuitable for dimming an LED bulb, they are difficult to adjust and have a tendency to flicker. Although not directly an energy issue it does indicate the problems associated with just trying to replace standard bulbs with LED. It is noted that the existing Rako system does not control all the lights in the function rooms as the ceiling pendants in two of the function rooms are controlled by two standard rotary dimmer switches. However, both of these switches are in the first function room which means if the function room partition is closed then the pendent lights in Function Room 2 are sometimes turned on accidently and no-one would know the lights have been turned on because you cannot see through to this room from the far end. It must also be inconvenient at times to have a dimmer switch in a separate area in which the lights it controls are located.

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The fluorescent trough lighting cannot be replaced with more energy efficient LED strip lighting as the existing Rako System cannot dim LED strip lighting.

5.1.3

Possible Solutions

Changing florescent trough lights in the function reception for LED strip lights. These are not dimmed.

In the far guest WC corridor the dual compact florescent lighting could be replaced with equivalent LED. Put occupancy sensors into all public WCs. Putting in a replacement control system that controls the Function Reception and both main Function Rooms along with public corridors. This could provide the following functions.      

5.1.4

Allow lighting in Reception and Function rooms to be kept turned off. Then have occupancy detection turn on only minimal lighting for people just passing through or staying in the room for only a brief period.

On/Off or scene control for function rooms including dimming of any new trough LED strip lighting.

When no function room is being used put the control of all WC lights and public corridors onto movement and occupancy sensors but provide automatic linking and therefore holding on of this lighting when any function/ reception rooms are being used.

Control of system through IPad, web browser, smartphone within the function rooms.

The same control system could also automatically enable and disable the air-conditioning by linking with the control of the main function room lights.

A possibility to interface this control system with the main BMS so that control of the function rooms can be done through the graphical user interface of the BMS.

Estimation of Present Lighting Energy Costs

Analysis and calculation has been carried out of all existing lights and the savings made possible by replacing them with LED lighting. An estimation of how often lights are presently are turned on is also considered. Further to this by adding occupancy sensors in these areas and providing an estimated figure for how long lights will be on with occupancy gives another figure for expected energy saving.

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Rooms

Total kWh Existing Lighting

Estimated % Time left on

Annual estimated current Kwh used

Annual estimated Kwh used if changing remaining lights to LED

% Kwh Saving with light change

Function Reception Function Rooms Guest WCs & Public Corridors

1.3

60%

6833

2692

61%

3.1

16%

4327

2292

47%

.706

100%

6185

3609

42%

July 2014

Estimated % Time Lights turned on with Occupancy Sensors 16%

Annual estimated kWh used if Lights on with Occupancy sensors

11% (average)

12% (average)

718

Additional estimated % kWh Saving with occupancy sensors 73%

Annual total Estimated Monetary Saving (13.53p per kWh) £820

1123

51%

£414

513

86%

£729

Total Saving

£1963

In addition to the above, due to the fact that extractor fans in the WCs will be linked to the lighting means that further energy will be saved by the occupancy sensors. This saving is estimated at around £130 per year.

This brings total annual savings for function areas to an estimated £2093.

Budget costs for replacing lights with LED and providing a new control system for lighting is: £12,500 Estimated payback period is 6 years based on a constant electricity price of 13.53 pence per kWh over that period.

6 Basement Staff Areas Most other areas of the basement staff areas were also surveyed and existing light types and their wattage noted. (Some store rooms could not be accessed)

6.1 Situation During the original hotel conversion from a number of boarding houses there was no major rewiring of lighting circuits to take into account new room and corridor layouts. The result is that a number of separate rooms and corridors share the same switched lighting circuit. So for example if a corridor light is on then so are the lights in one or more store rooms.

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Most lighting in these staff areas are fluorescent T8 fittings.

6.2 Problems Some lights in staff areas are appear to be left switched on 24/7 and 365 days a year. Other lights are switched off by a member of staff at night, however there are periods in the day during working hours when no staff are present in a room but lights are left on.

Some switches for a corridor light are in a locked store room meaning that it is difficult to turn these lights off.

6.3 Possible solutions Replace or adapt all lighting to LED. Control lights in all areas with movement and occupancy sensors.

6.4 Estimation of Present Lighting Energy Costs Analysis and calculation has been carried out of all existing lights and the savings made possible by replacing them with LED lighting. An estimation of how often lights are presently are turned on is also considered. Further to this by adding occupancy sensors in these areas and providing an estimated figure for how long lights will be on with occupancy gives another figure for expected energy saving.

Approximate figures for these are as follows: Rooms

Total kWh Existing Lighting (W)

Average Estimated % Time left on

Annual estimated current Kwh used

Annual estimated Kwh used if changing remaining lights to LED

% Kwh Saving with light change

Estimated % Average Time Lights on with Occupancy Sensors

Annual estimated kWh used if Lights on with Occupancy sensors

Additional % kWh Saving with occupancy sensors

Basement Staff Areas

19596

69%

11107

4838

56%

13%

1105

77%

Annual total Estimated Monetary Saving (13.53p per kWh)

ÂŁ1353

Budget cost for this solution is: ÂŁ5159 Estimated payback period is: 4 years based on a constant electricity price of 13.53 pence per kWh over that period.

Not included in the above figures are extractor fans in staff WCs. Further checks are required to confirm if they are also connected to lighting circuits. If so then this would provide additional savings.

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P a g e | 44

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SAV/CHP/SAV-106259/RS/25.06.2014 Claremont Hotel - plantroom 1 LoadTracker CHP (XRGI 20G) - CRA (Carbon Reduction Assessment)

Recommended heat storage vessel

Number of CHP units at 20 kWe Hotel

at least 500 ltr per CHP

1

198,036 kWh

Epsilon

LoadTracker Grid electricity

e-mail

Please note that the results presented in this assessment are specific to XRGI 20G LoadTracker

Type of usage Mike Glanfield 17.06.2014

Annual electricity consumption 13.53 p/kWh

of

Data reference

Electricity price (without CCL) 263,089 kWh

1.0 Summary of Usage:

Annual gas consumption 5.114 p/kWh

Gas (boiler)

Conventional

Carbon Footprint

Gas price (without CCL) 1.1 CO2 Emission Factors used: • For grid electricity = 0.519 kg/kWh • For grid displaced electricity = 0.519 kg/kWh • For gas = 0.216 kg/kWh

160,000

-

20,000

40,000

60,000

80,000

100,000

140,000

159,608 kg CO₂ pa 120,000

134,047 kg CO₂ pa

(a)

2.0 Carbon Footprint of Project User Centre: CO₂ (conv) CO₂ (CHP) (b) 25,561 kg CO₂ pa

Gas (CHP)

on

=(318,545 kWh x 0.216) + (44,725 kWh x 0.216) + (198,036 kWh x 0.519) - (90,945 kWh x 0.519) = 134,047 kg CO₂ pa

(b) = (CHP gas consumption x 0.216) + (supporting boiler gas consumption x 0.216) + (electricity consumption x 0.519) - (CHP electricity production x 0.519)

=(198,036 kWh x 0.519) + (263,089 kWh x 0.216) = 159,608 CO₂ pa

(a) = (electricity consumption x 0.519) + (gas consumption x 0.216)

Notes:

By introducing a CHP, a reduction of 25.6 tonnes of CO₂ emissions (25,561/159,608 = 16%) could be expected relative to a conventional mains supply/gas boiler system.

Net reduction

kg CO2/year

3.0 Cost Savings:

Conv. £26,794 (c) £13,454 (e) 0 £40,249

£33,067

CHP £14,489 (d) £2,287 (f) £16,290 (g) 0

10,000

20,000

30,000

40,000

50,000

Gas (CHP)

Grid electricity

LoadTracker

Gas (boiler)

Conventional

Operational Cost

Comparisons are shown between the operational costs of a conventional system (mains supply/gas boiler) and 1 x LoadTracker 20G CHP unit.

Electricity Gas (Boiler) Gas (CHP) Total

20,000 18,000 16,000 14,000 12,000 10,000 8,000 6,000 4,000 2,000 ‐ Jan

Feb

Apr

May

Site electricity demand

Mar

Jun

Jul

Sep

Oct

Nov

LoadTracker electricity production

Aug

Dec

Typical seasonal variations in electricity consumption have been assumed, in producing an approximate consumption pattern for the User Centre.

4.0 LoadTracker CHP Contribution to Electrical Needs of User Centre

(g) = Assessed by LoadTracker programme

(f) = Assessed by LoadTracker programme

(e) = 263,089 kWh x 0.05114 £/kWh = £13,454

(d) = Assessed by LoadTracker programme

(c) = 198,036 kWh x 0.1353 £/kWh = £26,794

Notes:

The use of LoadTracker CHP would result in annual savings of £40,249 - £33,067 = £7,182 pa relative to a conventional mains supply/boiler system.

£/year

CHP accounts for 90,945 kWh / 198,036 kWh = 46% of electricity requirements of the User Centre.

kWh/month

5.0 LoadTracker CHP Contribution to Heat Needs of User Centre Similarly to item 4.0, typical seasonal variations in heat requirements have been assumed.

Jan

Feb

Mar

Apr

May

Jun

Jul

Sep

Boiler 38,016 17%

Oct

Nov

Heat Balance

LoadTracker heat production

Aug

CHP 185,609 83%

Dec

The CHP LoadTracker units can maintain a similar profile for heat production, as shown below:

30,000 25,000 20,000 15,000 10,000 5,000 ‐

Site heat and DHW demand

223,626 kWh (h) 185,609 kWh (i) 38,016 kWh (j) 44,725 kWh (k)

(k) = Heat production (j) factored up assuming 85% efficiency = 38,016/0.85

(j) = Net difference (h) - (i)

(i) = Assessed by LoadTracker programme, to give max possible CHP usage

(h) = 263,089 kWh @ 85% (assumed boiler efficiency) = 223,626 kWh

Notes:

It can be seen that CHP account for 185,609 kWh/223,626 kWh = 83% of heat requirements of the user

Consumption by boiler

Heat production (CHP) Heat production (boiler)

Heat consumption by User Centre

6.0 Heat Balance for User Centre

kWh/month

Appendix CCL = Climate Change Levy. Extemption from this is granted to projects containing good quality CHP.

El. for Electricity for plantroom 2 plantroom 1 20,922 16,438 18,071 14,199 21,185 16,645 22,786 17,904 22,383 17,587 21,235 16,685 21,420 16,830 20,849 16,381 21,498 16,892 21,840 17,160 18,368 14,432 21,487 16,883 252,045 198,035

Site Electrical Consumption:

May‐13 Jun‐13 Jul‐13 Aug‐13 Sep‐13 Oct‐13 Nov‐13 Dec‐13 Jan‐14 Feb‐14 Mar‐14 Apr‐14 Total Site Gas Consumption:

Mar‐12 Apr‐12 May‐12 Jun‐12 Jul‐12 Aug‐12 Sep‐12 Oct‐12 Nov‐12 Dec‐12 Jan‐13 Feb‐13

23,177 19,764 20,424 16,813 16,897 11,979 16,715 19,730 23,043 4,394 58,344 31,809 263,089

As there is unsually high gas reading in December and very low in January I added them up and split equa

Company: Epsilon Energy Consultants 26 June 2014 Attention: Mr M Glanfield E-mail: mike@epsiloniom.com Claremont Hotel - PLANT ROOM TWO SAV Systems Quote Ref: 106259/CHP/1 - RS LoadTracker CHP

Dear Mike, Please find enclosed our quotation as follows: • • •

SAV United Kingdom Ltd. Scandia House, Boundary Road, Woking, Surrey GU21 5BX Telephone: +44 (0)1483 771910 www.sav-systems.com

Email: info@sav-systems.com

Registered in England No. 513621 VAT Registration No. GB 765 3333 24

Quotation for the supply of 1 x XRGI 20G LoadTracker CHP Energy Centre Quotation for the commissioning of the LoadTracker CHP Energy Centre.

Installation estimate - within your quote, we have recommended Aston Cord as a preferred installer, as we have checked off previous high standard installation work by Aston Cord. Any contract that you the client enter into with Aston Cord to install the CHP, is solely between the client and Aston Cord and does not make SAV responsible for any issues that may occur with the installation, or if issues occur at a later date.

Email RS-PS requesting 1 x 20G CHP, 1,000 ltr vessel and 1 x load sharer

The equipment as detailed on the supply quotation has been specified from the following references: •

Further information about the LoadTracker CHP Energy Centre is shown on the sketches and equipment data sheets attached.

If you or any of your colleagues would like to discuss the contents in more detail, please in the first instance contact our area project manager, Rob Smith, who would be happy to assist. Rob can be contacted on 07885 344114 or at rob.smith@sav-systems.com.

We trust this submission meets your requirements for the time being and look forward to hearing from you further.

Yours Sincerely,

Priscila Snook pp Rob Smith Project Manager SAV SYSTEMS

1

SAV LoadTracker™ CHP Energy Centres

•

•

Efficient capture of process heat. This is achieved by a heat distributor, able to maintain 80°C flow regardless of system return temperatures.

A thermal storage vessel to absorb the mismatches between site thermal demand/CHP thermal output. LoadTracker CHP vessels are provided with a dynamic control system which maximises CHP running time. By accurate management of vessel contents, the full thermal storage potential is used to cover site peak loads. This prevents unnecessary operation by the less efficient back-up boilers.

A generator capable of modulating output to track site demand. Modulation from the XRGI 20G LoadTracker CHP unit is between 10.0 - 20.0 kW(e). With multiple installations, modulation is over a much wider range, as the load is shared automatically between units. This means that LoadTracker CHP can expect to remain in operation during periods of low demand (when non-modulating units would be forced to trip out).

3 important features give Load Tracker CHP the advantage when it comes to delivering sustained operation:

•

•

•

Low noise emission. At only 49 dB (A) at 1m (about the same as office conversation), LoadTracker CHP is a good choice for applications involving sensitivity to noise.

An adapted version of the rugged Toyota gas engine, good for 6,000 hours between services. This plays a major part in keeping maintenance costs low. The engine can be reckoned to provide 50,000 running hours between overhauls.

A comprehensive development programme by EC Power has delivered further benefits:

•

A control panel to bring the CHP on line and out of service automatically.

There is no interaction required from the BMS. Local visual display is available, with data on plant operation also available remotely via modem.

Please remember, there are several different ways of integrating LoadTracker CHP within plant room pipe work. As part of this quote PDF, there is a suggested layout which should optimise the running hours to be expected from the CHP, based on the information of the project which we have to date. However, if a more appropriate method of connection becomes apparent during further project discussions, we would be happy to discuss alternatives.

For each individual project, SAV Systems offer to undertake an assessment of CHP potential. This exercise does not take long and is carried out without charge. Given basic information about site thermal and electrical loads, SAV Systems will produce a brief report outlining the expected CO2 reduction, cost savings and the expected share of thermal load to be taken by LoadTracker CHP. It will also provide recommendations for thermal storage vessel volume.

When the time comes to install, SAV Systems can count on the services of an excellent installation partner, Aston Cord Ltd. Although a preliminary estimate for installation has been provided with this quote, Aston Cord would be happy to attend site to conduct a preliminary survey. This would enable them to firm up on a more realistic estimate, and also submit a detailed summary of issues to be anticipated when site activities commence.

There is nothing like seeing LoadTracker CHP for real. If you would be interested in a site visit to an existing installation, we have numerous sites around the UK to which this could readily be arranged. You only have to let us know!

2

Quotation

Project: 106259/CHP/1 - RS

Claremont Hotel - PLANT ROOM TWO

SAV LoadTracker CHP

Quote Ref: 26 Jun 2014

SAV Manager:

Date:

Rob Smith - 07885 344114

Description

SAV United Kingdom Ltd. Scandia House, Boundary Road, Woking, Surrey GU21 5BX Telephone: +44 (0)1483 771910 Email: info@sav-systems.com

Total__

2.1

Commissioning day rate for any requirements which are additional to standard commissioning involvement (eg. System wide testing for LTHW system, BMS and electrical distribution system).

Standard commissioning of 1 x CHP unit. Also includes for standard commissioning of the mains monitoring relay to G59/2. Please see notes 1 - 4 on page 5. Note : This does not include application to the DNO for approval of the relay(s).

TBA

TBA

£1,030/day

£1,030/day

£1,209.84

£42,060.24

www.sav-systems.com

1 x LoadTracker XRGI 20G system with Q60; 1 x CHP heat storage vessel 1000 litres, 8 sensor pockets, 50 mm connections, 6 bar; 1 x Installation kit for 1 x CHP 1 x Q-network Flow Control, 1 x Load sharer

Item

1.1

10m Flue

LoadTracker CHP

1.2

2.2

Day rate for equipment handover and demonstration. Allowance for attendance to site by commissioning engineer subsequently to commissioning.

Additions and Commissioning

2.3

£565.00

£2,800.00

2.4

To cover application to the District Network Operator (DNO) for approval of the G59/2 monitoring relays. Please note that because application process can take 3 - 6 months to complete, SAV will accept orders for G59/2 application only at the time of receiving order for CHP equipment supply. Please see notes 5 , 6 & 7 on page 5.

£46,635.08

Installation £12,950.00

Total:

3.1

1 x CHP installation estimate. Scope includes for all mechanical, electrical, gas, flue and controls work associated with CHP. Price quoted is an estimate on behalf of Aston Cord Ltd, exact price can be given based on site survey. Please see notes 8 - 15 on page 5 for further details.

3

Quote Ref:

Project:

26 Jun 2014

106259/CHP/1 - RS

Claremont Hotel - PLANT ROOM TWO

SAV Manager:

Date:

Notes:

Rob Smith - 07885 344114

1. Standard commissioning must be included in each CHP order.

2. Arrangement of SAV Energy Centre as shown on Schematic Drgs. SAV-02-010-764 & 766 3. If flue length required is greater or less than 10m, an adjustment to price would be required.

4. The warranty on all items listed above is for a period of 24 months. This is to commence from the date of commissioning, or 90 days from the date of delivery, whichever is the earlier.

5. SAV requires sight of the plant room schematics prior to the CHP unit being delivered. This is to ensure that the CHP operates as intended and does not suffer from unwanted downtime due to over-heating.

Prices are Nett excl. VAT Terms of Delivery – DELIVERY CHARGES TO BE CONFIRMED Terms of Payment - end of month + 30 days Time of Delivery - approximately 8-10 weeks from receipt of order (Christmas and holidays excepted) Quotation Validity - 3 months from date of quote cover letter or e-mail 4�6 weeks potential lead time on pre commissioning, commissioning and G59 testing

4

CHP COMMISSIONING NOTES: 1.

2.

3.

4.

5.

6.

7.

Standard commissioning must be included in each CHP order.

Standard commissioning to include checking that all connections have been made correctly, all associated electrical systems are satisfactory, priming of all hydraulic circuits, start-up of all equipment, optimisation of gas/air mix using flue gas analysis, verification that all instrumentation readings are acceptable, checking that all hydraulic circuits remain leak free and proving that fume extraction is safe. Also includes for standard commissioning of the mains monitoring relay to G59. Test equipment will be brought to site and injection testing carried out by an engineer accredited under G59, to select & verify relay settings for under / over voltage, under / over frequency and phase shift. Also includes for the preparation and issue of the G59 test results.

Prior to commissioning being authorised by SAV Systems, settlement of accounts is required in full for all equipment supplied under page 3 of this quote package.

Commissioning is payable in advance, before SAV Systems arrange for their commissioning engineer to attend site.

Before any CHP is allowed to operate (supplied by SAV Systems or any other party), written agreement to this must first be secured from the local District Network Operator (or DNO, ie, the electricity supply company). This condition is laid down by Engineering Recommendation G59 (2010). Without such agreement, the DNO may impose a generation cessation order.

The relevant Application Forms to the DNO can be filled out and submitted either by the site operator or by a separate party on behalf of the site operator (the consultant, the contractor or by SAV Systems). If the purchasing contractor agrees with the eventual client that SAV Systems should carry out the Application process, this should be confirmed at the time of the order for equipment supply. This means that an early start can be made with the Application process, which can take 3 - 6 months to complete.

Should SAV Systems be required to process all G59 Application paperwork, it is recommended that provision be made by the purchasing contractor for the one-off charge which may be imposed by the DNO for the processing of the G59 Application Forms and to witness testing. This charge is not applied consistently by DNOs across the UK; in some cases the charge is waived, in the worst case the charge can reach ÂŁ900 for a single unit.

CHP INSTALLATION NOTES: Installation cost provided on page 3 is provided for budget purposes only. It is not to be construed as an offer by SAV. 8.

9.

10.

11.

12.

13.

Price quoted is an estimate, exact pricing can be provided subject to a site survey.

The order for installation work should be placed by Main Contractor directly on SAV's recommended installer: Aston Cord Energy Services Ltd, Unit 12c, Shepperton Business Park, Govett Avenue, Shepperton, Surrey TW17 8BA Tel No: 01932 770051. Contact: Mr Ian Stewart Mechanical & Electrical Installation - Scope of works: Mechanical installation: All LoadTracker CHP components (according to scope of supply) such as power unit(s), Q60 heat distributor(s), thermal storage vessel(s), all interconnecting hydraulic pipework, gas piping to CHP engine, all piping supports as required .

Electrical installation: control panel(s), reference meter, all interconnecting cabling in the ancillary kit and load sharer device for multiple CHPs installations.

Health & Safety: To cover all site liaison & reporting duties.

Access: To provide all necessary scaffolding and access equipment.

Gas supply line terminal point diam. in plant room is assumed to be 50mm or less. If supply line is greater than this, an additional charge may be required for attendance by coded welder.

Electrical distribution board is assumed to be in the plant room. If location of this is further afield, an additional charge may be required, pro-rata to distance between distribution board and plant room.

Isolation valves on hydraulic pipework terminals are assumed to be within the plant room, not more than 8 metres from the CHP units. If terminations are further away than this, an additional charge may be required according to length of run.

A suitable removal point is assumed to be available within 6 metres of the CHP units for the disposal of flue condensate.

5

SAV/CHP/SAV-106259/RS/25.06.2014 Claremont Hotel - plantroom 2 LoadTracker CHP (XRGI 20G) - CRA (Carbon Reduction Assessment)

Recommended heat storage vessel

Number of CHP units at 20 kWe Hotel

at least 500 ltr per CHP

1

252,044 kWh

Epsilon

LoadTracker Grid electricity

e-mail

Please note that the results presented in this assessment are specific to XRGI 20G LoadTracker

Type of usage Mike Glanfield 17.06.2014

Annual electricity consumption 13.53 p/kWh

of

Data reference

Electricity price (without CCL) 334,871 kWh

1.0 Summary of Usage:

Annual gas consumption 5.114 p/kWh

250,000

Gas (boiler)

Conventional

Carbon Footprint

Gas price (without CCL) 1.1 CO2 Emission Factors used: • For grid electricity = 0.519 kg/kWh • For grid displaced electricity = 0.519 kg/kWh • For gas = 0.216 kg/kWh

203,143 kg CO₂ pa

-

50,000

100,000

150,000

200,000

(b)

170,517 kg CO₂ pa

(a)

2.0 Carbon Footprint of Project User Centre: CO₂ (conv) CO₂ (CHP) 32,626 kg CO₂ pa

Gas (CHP)

on

=(399,827 kWh x 0.216) + (61,956 kWh x 0.216) + (252,044 kWh x 0.519) - (115,681 kWh x 0.519) = 170,517 kg CO₂ pa

(b) = (CHP gas consumption x 0.216) + (supporting boiler gas consumption x 0.216) + (electricity consumption x 0.519) - (CHP electricity production x 0.519)

=(252,044 kWh x 0.519) + (334,871 kWh x 0.216) = 203,143 CO₂ pa

(a) = (electricity consumption x 0.519) + (gas consumption x 0.216)

Notes:

By introducing a CHP, a reduction of 32.6 tonnes of CO₂ emissions (32,626/203,143 = 16%) could be expected relative to a conventional mains supply/gas boiler system.

Net reduction

kg CO2/year

3.0 Cost Savings:

Conv. £34,102 (c) £17,125 (e) 0 £51,227

£42,065

CHP £18,450 (d) £3,168 (f) £20,447 (g) 0

10,000

20,000

30,000

40,000

50,000

60,000

Gas (CHP)

Grid electricity

LoadTracker

Gas (boiler)

Conventional

Operational Cost

Comparisons are shown between the operational costs of a conventional system (mains supply/gas boiler) and 1 x LoadTracker 20G CHP unit.

Electricity Gas (Boiler) Gas (CHP) Total

25,000

20,000

15,000

10,000

5,000

‐ Jan

Feb

Apr

May

Site electricity demand

Mar

Jun

Jul

Sep

Oct

Nov

LoadTracker electricity production

Aug

Dec

Typical seasonal variations in electricity consumption have been assumed, in producing an approximate consumption pattern for the User Centre.

4.0 LoadTracker CHP Contribution to Electrical Needs of User Centre

(g) = Assessed by LoadTracker programme

(f) = Assessed by LoadTracker programme

(e) = 334,871 kWh x 0.05114 £/kWh = £17,125

(d) = Assessed by LoadTracker programme

(c) = 252,044 kWh x 0.1353 £/kWh = £34,102

Notes:

The use of LoadTracker CHP would result in annual savings of £51,227 - £42,065 = £9,161 pa relative to a conventional mains supply/boiler system.

£/year

CHP accounts for 115,681 kWh / 252,044 kWh = 46% of electricity requirements of the User Centre.

kWh/month

5.0 LoadTracker CHP Contribution to Heat Needs of User Centre Similarly to item 4.0, typical seasonal variations in heat requirements have been assumed.

Jan

Feb

Mar

Apr

May

Jun

Jul

Sep

Boiler 52,662 19%

Oct

Nov

Heat Balance

LoadTracker heat production

Aug

CHP 231,978 81%

Dec

The CHP LoadTracker units can maintain a similar profile for heat production, as shown below:

45,000 40,000 35,000 30,000 25,000 20,000 15,000 10,000 5,000 ‐

Site heat and DHW demand

284,640 kWh (h) 231,978 kWh (i) 52,662 kWh (j) 61,956 kWh (k)

(k) = Heat production (j) factored up assuming 85% efficiency = 52,662/0.85

(j) = Net difference (h) - (i)

(i) = Assessed by LoadTracker programme, to give max possible CHP usage

(h) = 334,871 kWh @ 85% (assumed boiler efficiency) = 284,640 kWh

Notes:

It can be seen that CHP account for 231,978 kWh/284,640 kWh = 81% of heat requirements of the user

Consumption by boiler

Heat production (CHP) Heat production (boiler)

Heat consumption by User Centre

6.0 Heat Balance for User Centre

kWh/month

Appendix CCL = Climate Change Levy. Extemption from this is granted to projects containing good quality CHP.

El. for Electricity for plantroom 2 plantroom 1 20,922 16,438 18,071 14,199 21,185 16,645 22,786 17,904 22,383 17,587 21,235 16,685 21,420 16,830 20,849 16,381 21,498 16,892 21,840 17,160 18,368 14,432 21,487 16,883 252,045 198,035

Site Electrical Consumption:

May‐13 Jun‐13 Jul‐13 Aug‐13 Sep‐13 Oct‐13 Nov‐13 Dec‐13 Jan‐14 Feb‐14 Mar‐14 Apr‐14 Total Site Gas Consumption:

Mar‐13 Apr‐13 May‐13 Jun‐13 Jul‐13 Aug‐13 Sep‐13 Oct‐13 Nov‐13 Dec‐13 Jan‐14 Feb‐14

34,320 42,326 32,648 17,310 14,749 15,953 19,759 19,313 33,165 25,872 47,589 31,867 334,871

Company: Epsilon Energy Consultants 26 June 2014 Attention: Mr M Glanfield E-mail: mike@epsiloniom.com Claremont Hotel - PLANT ROOM TWO SAV Systems Quote Ref: 106259/CHP/1 - RS LoadTracker CHP

Dear Mike, Please find enclosed our quotation as follows: • • •

SAV United Kingdom Ltd. Scandia House, Boundary Road, Woking, Surrey GU21 5BX Telephone: +44 (0)1483 771910 www.sav-systems.com

Email: info@sav-systems.com

Registered in England No. 513621 VAT Registration No. GB 765 3333 24

Quotation for the supply of 1 x XRGI 20G LoadTracker CHP Energy Centre Quotation for the commissioning of the LoadTracker CHP Energy Centre.

Installation estimate - within your quote, we have recommended Aston Cord as a preferred installer, as we have checked off previous high standard installation work by Aston Cord. Any contract that you the client enter into with Aston Cord to install the CHP, is solely between the client and Aston Cord and does not make SAV responsible for any issues that may occur with the installation, or if issues occur at a later date.

Email RS-PS requesting 1 x 20G CHP, 1,000 ltr vessel and 1 x load sharer

The equipment as detailed on the supply quotation has been specified from the following references: •

Further information about the LoadTracker CHP Energy Centre is shown on the sketches and equipment data sheets attached.

If you or any of your colleagues would like to discuss the contents in more detail, please in the first instance contact our area project manager, Rob Smith, who would be happy to assist. Rob can be contacted on 07885 344114 or at rob.smith@sav-systems.com.

We trust this submission meets your requirements for the time being and look forward to hearing from you further.

Yours Sincerely,

Priscila Snook pp Rob Smith Project Manager SAV SYSTEMS

1

SAV LoadTracker™ CHP Energy Centres

•

•

Efficient capture of process heat. This is achieved by a heat distributor, able to maintain 80°C flow regardless of system return temperatures.

A thermal storage vessel to absorb the mismatches between site thermal demand/CHP thermal output. LoadTracker CHP vessels are provided with a dynamic control system which maximises CHP running time. By accurate management of vessel contents, the full thermal storage potential is used to cover site peak loads. This prevents unnecessary operation by the less efficient back-up boilers.

A generator capable of modulating output to track site demand. Modulation from the XRGI 20G LoadTracker CHP unit is between 10.0 - 20.0 kW(e). With multiple installations, modulation is over a much wider range, as the load is shared automatically between units. This means that LoadTracker CHP can expect to remain in operation during periods of low demand (when non-modulating units would be forced to trip out).

3 important features give Load Tracker CHP the advantage when it comes to delivering sustained operation:

•

•

•

Low noise emission. At only 49 dB (A) at 1m (about the same as office conversation), LoadTracker CHP is a good choice for applications involving sensitivity to noise.

An adapted version of the rugged Toyota gas engine, good for 6,000 hours between services. This plays a major part in keeping maintenance costs low. The engine can be reckoned to provide 50,000 running hours between overhauls.

A comprehensive development programme by EC Power has delivered further benefits:

•

A control panel to bring the CHP on line and out of service automatically.

There is no interaction required from the BMS. Local visual display is available, with data on plant operation also available remotely via modem.

Please remember, there are several different ways of integrating LoadTracker CHP within plant room pipe work. As part of this quote PDF, there is a suggested layout which should optimise the running hours to be expected from the CHP, based on the information of the project which we have to date. However, if a more appropriate method of connection becomes apparent during further project discussions, we would be happy to discuss alternatives.

For each individual project, SAV Systems offer to undertake an assessment of CHP potential. This exercise does not take long and is carried out without charge. Given basic information about site thermal and electrical loads, SAV Systems will produce a brief report outlining the expected CO2 reduction, cost savings and the expected share of thermal load to be taken by LoadTracker CHP. It will also provide recommendations for thermal storage vessel volume.

When the time comes to install, SAV Systems can count on the services of an excellent installation partner, Aston Cord Ltd. Although a preliminary estimate for installation has been provided with this quote, Aston Cord would be happy to attend site to conduct a preliminary survey. This would enable them to firm up on a more realistic estimate, and also submit a detailed summary of issues to be anticipated when site activities commence.

There is nothing like seeing LoadTracker CHP for real. If you would be interested in a site visit to an existing installation, we have numerous sites around the UK to which this could readily be arranged. You only have to let us know!

2

Quotation

Project: 106259/CHP/1 - RS

Claremont Hotel - PLANT ROOM TWO

SAV LoadTracker CHP

Quote Ref: 26 Jun 2014

SAV Manager:

Date:

Rob Smith - 07885 344114

Description

SAV United Kingdom Ltd. Scandia House, Boundary Road, Woking, Surrey GU21 5BX Telephone: +44 (0)1483 771910 Email: info@sav-systems.com

Total__

2.1

Commissioning day rate for any requirements which are additional to standard commissioning involvement (eg. System wide testing for LTHW system, BMS and electrical distribution system).

Standard commissioning of 1 x CHP unit. Also includes for standard commissioning of the mains monitoring relay to G59/2. Please see notes 1 - 4 on page 5. Note : This does not include application to the DNO for approval of the relay(s).

TBA

TBA

£1,030/day

£1,030/day

£1,209.84

£42,060.24

www.sav-systems.com

1 x LoadTracker XRGI 20G system with Q60; 1 x CHP heat storage vessel 1000 litres, 8 sensor pockets, 50 mm connections, 6 bar; 1 x Installation kit for 1 x CHP 1 x Q-network Flow Control, 1 x Load sharer

Item

1.1

10m Flue

LoadTracker CHP

1.2

2.2

Day rate for equipment handover and demonstration. Allowance for attendance to site by commissioning engineer subsequently to commissioning.

Additions and Commissioning

2.3

£565.00

£2,800.00

2.4

To cover application to the District Network Operator (DNO) for approval of the G59/2 monitoring relays. Please note that because application process can take 3 - 6 months to complete, SAV will accept orders for G59/2 application only at the time of receiving order for CHP equipment supply. Please see notes 5 , 6 & 7 on page 5.

£46,635.08

Installation £12,950.00

Total:

3.1

1 x CHP installation estimate. Scope includes for all mechanical, electrical, gas, flue and controls work associated with CHP. Price quoted is an estimate on behalf of Aston Cord Ltd, exact price can be given based on site survey. Please see notes 8 - 15 on page 5 for further details.

3

Quote Ref:

Project:

26 Jun 2014

106259/CHP/1 - RS

Claremont Hotel - PLANT ROOM TWO

SAV Manager:

Date:

Notes:

Rob Smith - 07885 344114

1. Standard commissioning must be included in each CHP order.

2. Arrangement of SAV Energy Centre as shown on Schematic Drgs. SAV-02-010-764 & 766 3. If flue length required is greater or less than 10m, an adjustment to price would be required.

4. The warranty on all items listed above is for a period of 24 months. This is to commence from the date of commissioning, or 90 days from the date of delivery, whichever is the earlier.

5. SAV requires sight of the plant room schematics prior to the CHP unit being delivered. This is to ensure that the CHP operates as intended and does not suffer from unwanted downtime due to over-heating.

Prices are Nett excl. VAT Terms of Delivery – DELIVERY CHARGES TO BE CONFIRMED Terms of Payment - end of month + 30 days Time of Delivery - approximately 8-10 weeks from receipt of order (Christmas and holidays excepted) Quotation Validity - 3 months from date of quote cover letter or e-mail 4�6 weeks potential lead time on pre commissioning, commissioning and G59 testing

4

CHP COMMISSIONING NOTES: 1.

2.

3.

4.

5.

6.

7.

Standard commissioning must be included in each CHP order.

Standard commissioning to include checking that all connections have been made correctly, all associated electrical systems are satisfactory, priming of all hydraulic circuits, start-up of all equipment, optimisation of gas/air mix using flue gas analysis, verification that all instrumentation readings are acceptable, checking that all hydraulic circuits remain leak free and proving that fume extraction is safe. Also includes for standard commissioning of the mains monitoring relay to G59. Test equipment will be brought to site and injection testing carried out by an engineer accredited under G59, to select & verify relay settings for under / over voltage, under / over frequency and phase shift. Also includes for the preparation and issue of the G59 test results.

Prior to commissioning being authorised by SAV Systems, settlement of accounts is required in full for all equipment supplied under page 3 of this quote package.

Commissioning is payable in advance, before SAV Systems arrange for their commissioning engineer to attend site.

Before any CHP is allowed to operate (supplied by SAV Systems or any other party), written agreement to this must first be secured from the local District Network Operator (or DNO, ie, the electricity supply company). This condition is laid down by Engineering Recommendation G59 (2010). Without such agreement, the DNO may impose a generation cessation order.

The relevant Application Forms to the DNO can be filled out and submitted either by the site operator or by a separate party on behalf of the site operator (the consultant, the contractor or by SAV Systems). If the purchasing contractor agrees with the eventual client that SAV Systems should carry out the Application process, this should be confirmed at the time of the order for equipment supply. This means that an early start can be made with the Application process, which can take 3 - 6 months to complete.

Should SAV Systems be required to process all G59 Application paperwork, it is recommended that provision be made by the purchasing contractor for the one-off charge which may be imposed by the DNO for the processing of the G59 Application Forms and to witness testing. This charge is not applied consistently by DNOs across the UK; in some cases the charge is waived, in the worst case the charge can reach ÂŁ900 for a single unit.

CHP INSTALLATION NOTES: Installation cost provided on page 3 is provided for budget purposes only. It is not to be construed as an offer by SAV. 8.

9.

10.

11.

12.

13.

Price quoted is an estimate, exact pricing can be provided subject to a site survey.

The order for installation work should be placed by Main Contractor directly on SAV's recommended installer: Aston Cord Energy Services Ltd, Unit 12c, Shepperton Business Park, Govett Avenue, Shepperton, Surrey TW17 8BA Tel No: 01932 770051. Contact: Mr Ian Stewart Mechanical & Electrical Installation - Scope of works: Mechanical installation: All LoadTracker CHP components (according to scope of supply) such as power unit(s), Q60 heat distributor(s), thermal storage vessel(s), all interconnecting hydraulic pipework, gas piping to CHP engine, all piping supports as required .

Electrical installation: control panel(s), reference meter, all interconnecting cabling in the ancillary kit and load sharer device for multiple CHPs installations.

Health & Safety: To cover all site liaison & reporting duties.

Access: To provide all necessary scaffolding and access equipment.

Gas supply line terminal point diam. in plant room is assumed to be 50mm or less. If supply line is greater than this, an additional charge may be required for attendance by coded welder.

Electrical distribution board is assumed to be in the plant room. If location of this is further afield, an additional charge may be required, pro-rata to distance between distribution board and plant room.

Isolation valves on hydraulic pipework terminals are assumed to be within the plant room, not more than 8 metres from the CHP units. If terminations are further away than this, an additional charge may be required according to length of run.

A suitable removal point is assumed to be available within 6 metres of the CHP units for the disposal of flue condensate.

5

Epsilon Consultants (IOM) Ltd 30 June 2014 Attention: Mike Glanfield E-mail: mike@epsiloniom.com Tel. No: 01624 677278 Claremont Hotel SAV Systems Quote Ref: SAV-106259 RS Danfoss FlatStations

Dear Mike Glanfield,

SAV United Kingdom Ltd. Scandia House, Boundary Road, Woking, Surrey GU21 5BX Telephone: +44 (0)1483 771910 www.sav-systems.com

Email: info@sav-systems.com

Registered in England No. 513621 VAT Registration No. GB 765 3333 24

• • •

• • •

Set of 2 x Cimberio Isolating Valves with test points. (Supplied loose)

Instantaneous Water Heater Danfoss FlatStations 1-BS-BV FlatStation with Cover Pressure Absorber for 1-BS-35

Instantaneous Water Heater suitable for charging systems. Danfoss FlatStations 1-BS-BL FlatStation with Cover Pressure Absorber for 1-BS-35

With reference to your recent enquiry, I have enclosed our quotation for the supply of Danfoss FlatStations, and other ancillary items as listed below, to serve the above project.

•

Further details of items and services to be supplied under this quotation are as shown on the below quotation sheet. For further details of Danfoss FlatStations and other items to be supplied, please also see specific data sheet(s) sent with this quotation.

Please note that our prices are based on the information provided, or assumed, at the time of preparing this quotation, and are therefore preliminary only. Any changes to requirements will require a revision to this quotation.

All quotations and products are supplied in line with SAV UK Ltd. Conditions of Sale, a copy of which is attached to this quotation.

If you have any queries or require any further information regarding this quotation please contact our project manager for this project, Rob Smith, who would be happy to assist.

Rob can be contacted on 07885 344114 or at rob.smith@sav-systems.com.

We trust this information is satisfactory and look forward to hearing from you.

Yours sincerely,

Kevin Sloane pp Rob Smith Project Manager SAV SYSTEMS

1

Quotation

Project:

FAO:

SAV-106259 RS

Claremont Hotel

Mike Glanfield of Epsilon Consultants (IOM) Ltd

Danfoss FlatStations

Quote Ref: Rob Smith - 07885 344114

30 June 2014

SAV Manager:

Date:

Description

SAV United Kingdom Ltd. Scandia House, Boundary Road, Woking, Surrey GU21 5BX Telephone: +44 (0)1483 771910 www.sav-systems.com

Email: info@sav-systems.com

Total

£2,516.67

Price Each

£2,516.67

£523.07

Qty.

1

£523.07

Item

Danfoss FlatStations

1.1

Danfoss FlatStation 1 Series BS-BL up to 126kW DHW 1-BS126-BL-E - See datasheet for criteria. With Cover for 70126kW unit, 1

Instantaneous with some storage as a buffer

1.2

Danfoss FlatStation 1 Series BS up to 35kW DHW (approx. 12 l/m DHW) 1-BS-35 - See datasheet for criteria. With Cover for 35-59kW unit, Pressure Absorber,

£6,104.29

£3,064.55

Total:

£2,646.15

£3,064.55

£2,646.15

£523.07

1

1

£523.07

£2,739.37

1.3

1.4

Danfoss FlatStation 1 Series BS-BV up to 186kW DHW (approx.

67 l/m DHW, Elec. Ctrl.) 1-BS-186-BV-E - See datasheet for criteria. With Cover for 186-265kW unit, Meter fitting piece and sensor pocket for energy meter (size 6-8),

1

£2,739.37

Danfoss FlatStation 1 Series BS-BL up to 186kW DHW 1-BS186-BL-E - See datasheet for criteria. With Cover for 157222kW unit,

1.5

Danfoss FlatStation 1 Series BS up to 35kW DHW (approx. 12 l/m DHW) 1-BS-35 - See datasheet for criteria. With Cover for 35-59kW unit, Pressure Absorber,

1

Instantaneous

1.6

£5,908.59

Danfoss FlatStation 1 Series BS-BV up to 230kW DHW (approx.

82 l/m DHW, Elec. Ctrl.) 1-BS-230-BV-E - See datasheet for criteria. With Cover for 186-265kW unit, Meter fitting piece and sensor pocket for energy meter (size 6-8),

Total:

2

Quote Ref:

Project:

FAO:

SAV-106259 RS

Claremont Hotel

Mike Glanfield of Epsilon Consultants (IOM) Ltd

Rob Smith - 07885 344114

30 June 2014

SAV Manager:

Date:

Notes: 1.

2.

3.

4.

5.

Isolation valves provided for all pipework connections.

M-Bus cabling is not included in this quotation.

The length and type of M-Bus cable used, and the number of meters connected, may necessitate the use of M-Bus repeaters (amplifiers), prices of which are available on request. Please refer to our M-Bus data sheet for further information.

SAV does not recommend the use of single core cables.

Site conditions required for commissioning of energy meters are available on request.

M-BUS System Standard includes: i.

Obtaining apartment numbers referenced to meter serial numbers ii.

Installation of M-Bus device list iii.

Poll Meters and create device list iv.

Assign apartment numbers to device list v.

Install software on host PC vi.

Carry out one-off training session as part of commissioning process (if an additional post-visit day is required, a further charge may be applicable).

Prices are Nett excl. VAT Terms of Delivery - to mainland UK included Terms of Payment - end of month + 30 days Time of Delivery TBA - approximately 6-8 weeks from receipt of order (Christmas and holidays excepted) Quotation Validity - 3 months from date of quote cover letter or e-mail

3

11 Appendices (Appendix Q) Members’ replies (31 in number) to the online discussion started on ‘Linked-In’ social media website entitled “TOP TEN LIST OF ENERGY SAVING STRATEGIES” in the Hotel & Hospitality industry.

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July 2014

11 Appendices (Appendix R) Reference publication: “Hotel Energy Solutions - Analysis of energy use by European Hotels�

[N.B. this online publication may be viewed at http://www.epsiloniom.com/resources/hotel-energy-solutions/]

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July 2014