Engine House No. 5
LEED FACTS LEED NC v2009 August 2011
Platinum Address:
1331 19th Street | Denver, CO
Building Owner:
SLATERPAULL Architects
Building Type:
Office Renovation
Gross Square Footage:
13,024 s.f.
Year Built:
2010
# of Occupants:
35 (designed) | 45 (actual)
Weekly Hours Used:
45 (designed) | 53 (actual)
ENGINE HOUSE NO. 5 Energy Tracking Report Utility Data Current as of 6/2013
92/110
Sustainable Sites
22/26
Water Efficiency
4/10
Energy & Atmosphere
35/35
Materials & Resources
8/14
Indoor Environmental Quality
13/15
Innovation & Design
6/6
Regional Priority
4/4
What is Energy Tracking?
What is the process?
What is this report?
Energy Tracking provides the foundation for successful energy management. The objective of energy tracking is to understand energy use, improve energy efficiency, reduce cost and encourage energy conservation through evaluation and monitoring.
Compare the energy usages of your building with various industry-standard baselines as well as against initial established goals.
Energy use and cost data of electricity, gas, steam, water, waste fuels & renewables.
This is a summary of current energy and water operational data compared to design expectations and performance baselines. The metrics used here are calculated based on utility data input into EnergyStar’s Portfolio Manager as well as data from an energy model and LEED Certification.
Why do Energy Tracking?
What is the outcome?
Who benefits from energy tracking?
SLATERPAULL Architects is committed to sustainable design and practices. Our goal is to get a better understanding of the efficiency of our designs while providing our clients information for better energy management.
We will be able to measure the effectiveness of design elements implemented and document additional savings opportunities. This provides the design team opportunity to correct any performance deficiencies that may be present and make informed decisions about future projects.
Building owners can keep track of year to year changes in performance and the impact of facility investments. Facilities managers can identify problem areas and implement solutions. Architects, engineers and designers can monitor the real world efficiency of the building systems they specify.
What are we tracking?
Energy Performance Site Energy Use Intensity (EUI) This facility is currently using 43% less energy per square foot than similar facilities in the U.S. Total site Energy Use Intensity (EUI) has decreased 18% from the baseline year.
Energy Use: (current EUI: 67.1 kBTtu/sf.ft/yr)
18% ENERGY STAR Rating The ENERGY STAR rating has increased from the baseline over the past year indicating an improvement in energy performance relative to other similar buildings in the U.S.
Current ENERGY STAR Rating is: (baseline is: 53)
69 ENGINE HOUSE NO. 5 Energy Tracking Report Utility Data Current as of 6/2013
Energy Performance Energy Usage The Energy Usage for the current year has decreased indicating an improvement in energy performance relative to the baseline year. The Energy Cost has decreased from the baseline. Energy Cost Savings is: (saved annually over baseline)
14% Energy Generated The Energy Generation for the current year has increased indicating an improvement in energy generation relative to the baseline year. The Energy Generation has increased 1.45% from the baseline. Amount of Energy Generated: 7.16 MWh
8% Greenhouse Gas Emissions The emissions have remained constant from the baseline year.
Emissions: Current year’s emissions are 138 MtCO2e
0% ENGINE HOUSE NO. 5 Energy Tracking Report Utility Data Current as of 6/2013
Water Performance Potable Water Use The water use has increased from the Projected usage and the Baseline usage.
Water Use change from Target: (Target usage: 40,860 kGal/year)
47% Water Use over Time Water use has increased dramatically from the baseline year.
Water Use change from Baseline: (baseline usage: 47,000 kGal/year)
39% Conclusions:
Suggestions:
- There is a large discrepancy between the “As Modeled” building characteristics to the “Actual” building characteristics. In general, the building is being used for longer hours and by more occupants than anticipated. This results in higher than expected energy and water usage.
- Continuous tracking will help identify energy and water trends.
- The energy efficiency has improved between the baseline and current years, despite the increase of usage. - The recalibration of the solar collection units has increased the energy generation. - The modeled utility costs are less than the current utility costs resulting in higher cost of energy than anticipated. ENGINE HOUSE NO. 5 Energy Tracking Report Utility Data Current as of 6/2013
- An additional recalibration of the solar collection units might yield an even higher generation rate which would be closer to the projected yield. - During the design phase, anticipate the usage of the building changing, both increasing and decreasing and allow the system to react to the change in building usage.
Glossary of Terms ENERGY PERFORMANCE RATING
POTABLE WATER
ENERGY STAR Certification is awarded to buildings and manufacturing plants that earn a 75 or higher on EPA’s 1-100 energy performance scale, indicating that the facility performs better than at least 75% of similar buildings nationwide. The ENERGY STAR energy performance scale accounts for differences in operating conditions, regional weather data, and other important considerations.
Potable water meets or exceeds EPA’s drinking water quality standards and is approved for human consumption by the state or local authorities having jurisdiction; it may be supplied from wells or municipal water systems.
The ENERGY STAR Score is a measure of how well your property is performing relative to similar properties, when normalized for climate and operational characteristics.
Site Energy is the annual amount of all the energy your property consumes on-site, as reported on your utility bills. Use site energy to understand how the energy use for an individual property has changed over time.
The ENERGY STAR scores are based on data from national building energy consumption surveys, and this allows Portfolio Manager to control for key variables affecting a building’s energy performance, including climate, hours of operation, and building size. What this means is that buildings from around the country, with different operating parameters and subject to different weather patterns, can be compared side-by-side in order to see how they stack up in terms of energy performance. The specific factors that are included in this normalization (Hours, Workers, Climate, etc) will depend on the property type. ENERGY USE INTENSITY (EUI) Energy Use Intensity is a of measurement that describes a building’s energy use. EUI represents the energy consumed by a building relative to its size. A building’s EUI is calculated by taking the total energy consumed in one year (measured in kBtu) and dividing it by the total floor space of the building. GHG EMISSIONS Greenhouse Gas (GHG) Emissions are the carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) gases released into the atmosphere as a result of energy consumption at the property. GHG emissions are expressed in carbon dioxide equivalent (CO2e), a universal unit of measure that combines the quantity and global warming potential of each greenhouse gas. METRIC DATES All Metrics are computed on an annual basis, meaning they represent 12 full calendar months of data. The date associated with a given metric is the last day of the 12-month period to which it applies. For example, a date of 12/31/2012 would be used for metrics that represent the calendar year of 2012. Baseline Date – The Baseline Date marks the 12-month period selected as the Property’s baseline for comparison. For example, a baseline date of 12/31/2005 means that your baseline is the calendar year of 2005. You can set a different baseline date for energy and for water. Current Date – The Current Date marks the most current date for which there are 12 full months of data. For example, if your Current Date is 12/31/2012, then you have complete meter data for the 12 months ending December 2012. A different current date is determined for energy and water, based on the most current meter data.
SITE ENERGY
SOURCE ENERGY Source Energy Use is the total amount of raw fuel that is required to operate your property. In addition to what the property consumes on-site, source energy includes losses that take place during generation, transmission, and distribution of the energy, thereby enabling a complete assessment of energy consumption resulting from building operations. For this reason, Source EUI is the best way to quantify the energy performance of commercial buildings. Use it to understand the complete energy impact of your property, and to compare the energy performance of properties across your portfolio. TARGET VALUES Target Values are the performance metrics associated with an established target (goal) for your property. Portfolio Manager has both a regular target and a target for the property design: Target – This is the target for comparison relative to actual operation. Once your target is established, metrics such as Site EUI, Source EUI, GHG Emissions, and Energy Cost are evaluated for your target conditions. This will enable you to compare your actual energy use with your target and track your progress. Design Target – This is the target for comparison relative to your design plans (estimated design energy and design property use details). Once your design target is established metrics such as Site EUI, Source EUI, GHG Emissions, and Energy Cost are evaluated for your target conditions. This will enable you to compare your design energy use with your design target, and determine whether your planned design meets your design target goals. USGBC & LEED Developed by the U.S. Green Building Council (USGBC), LEED is intended to provide building owners and operators a concise framework for identifying and implementing practical and measurable green building design, construction, operations and maintenance solutions. Leadership in Energy and Environmental Design (LEED) comprises a suite of rating systems for the design, construction and operation of high performance green buildings, homes and neighborhoods.
Definitions provided by www.energystar.gov
ENGINE HOUSE NO. 5 Energy Tracking Report Utility Data Current as of 6/2013