Carbon Reduction Plan

Keltbray is a specialist construction engineering and infrastructure solutions group

Our purpose is to redefine the way sustainable development is delivered. Based on our collective experience, we collaborate at the earliest stage to design and self-deliver innovative customer solutions across technically demanding built environment and infrastructure sectors. Working in partnership with our stakeholders, we are actively contributing to economic growth, social advancement and environmental protection.

Group overview

A SUSTAINABLE BUSINESS MODEL

We are focusing our integrated services on solving customers’ engineering challenges in a rapidly changing world.

The resilience of the Keltbray model and the commitment of everyone in the business has shown the resourcefulness, agility and above all else, the dedication to the customers we serve and the communities in which we operate.

WHO WE ARE

Keltbray is a UK-leading specialist construction engineering and infrastructure services business, offering a range of self-delivered solutions for blue-chip public and private sector customers.

WHAT WE DO

Operating in highly-regulated and safety-critical sectors, we are a key player in developing and maintaining Britain’s economic infrastructure and built environment, and in selective overseas markets.

Our customers trust us to deliver certainty on their projects – to specification, safely, on programme, within budget and with care for the environment and the communities that host us.

Our integrated delivery approach is underpinned by the significant investments we are making in the development of our people, our specialist delivery capabilities and our research and development agenda. It focuses our business on engineering innovation and delivery excellence to provide greater value for all our stakeholders.

WHY WE DO IT

Our purpose is to redefine the way sustainable development is delivered. Our deep expertise means that we offer standalone and holistic services, to meet our clients’ complex and changing engineering demands to enhance, upgrade and decarbonise their capital assets.

HOW WE DO IT

Keltbray’s distinctive delivery model is based around a set of complementary capabilities that together constitute the way we go to work to deliver certainty through the smart solutions we provide for our customers.

SCAN TO WATCH OUR FILM

Watch our corporate film to find out what we do and how we are redefining the way sustainable development is delivered

Our progressive approach seeks to break down the barriers to success inherent in traditional contracting models. Clients need to feel confident entrusting their investments with a delivery partner capable of turning vision into reality. They need to be certain the end result will meet their expectations – and will be completed to the agreed programme, budget and specifications.

We believe that our unique delivery model has the potential to address these challenges – and the key to unlocking its benefits lies in deep and trusting client relationships that allow us to engage early on projects as a prerequisite to delivering greater value. It is only when clients and delivery partners – along with designers and others with vested interests – collaborate from the outset, as part of an integrated team, that opportunities for innovation in engineering can be fully exploited.

STRATEGIC CUSTOMER RELATIONSHIP MANAGEMENT

Inherent in the way we go to work is a different kind of client/delivery partner relationship management approach – one based on establishing and maintaining long-term strategic relationships where both parties’ interests are aligned to deliver mutual benefit.

INNOVATIVE ENGINEERING EXCELLENCE

“Our sustainable business model provides progressive, long-term environmental, social and economic value to the stakeholders we serve”

We work collaboratively with our clients, supply chain and industry partners to de-risk project delivery and engineer solutions with a high degree of outcome certainty. Our multi-disciplined network of professional engineers can design, contract and supervise sustainable, high performance engineering and construction services in the public and private sectors.

INTEGRATED SELF-DELIVERY MODEL

By drawing on our specialist in-house delivery businesses and directly employed workforce, we have greater control over quality and productivity. It enables us to be more responsive, rectify issues and interface clashes quicker and achieve greater integration across the project phases. This brings an operational focus and intensity to project delivery that is very different to the traditional subcontracting model.

Our services and sectors

STRONG OPPORTUNITY PIPELINE

Keltbray is positioned strongly in its chosen markets to take advantage of the visible opportunities and deliver stakeholder value.

MACRO-TRENDS

Built Environment

Growth in building activity is forecast to pick up in 2023 and beyond, despite tighter monetary policy putting pressure on borrowing rates. The large backlog of work will help to mitigate the impact on building construction work done over 2023 and 2024. Supply-side constraints will subside and construction costs will re-base at a higher level. This correction in the mismatch between supply and demand will ease the pressures driving construction cost growth. Less carbon-intensive demand will also push investment levels and ramp-up activity over the next decade in the UK building and refurbishment market where Keltbray is well positioned.

Infrastructure

Outlook is positive and has been boosted by the government’s £650 billion National Infrastructure strategy, providing the highest levels of economic investment in our industry for decades. This has been further boosted by the Government's commitments to nuclear and renewable energy infrastructure investment to decarbonise the UK generation fleet and increase security of supply in an increasingly uncertain world. This will see civil engineering be the fastest-growing sector in the construction market.

Industry-leading business services

Keltbray operates an integrated construction engineering and infrastructure services business model. This is proving highly effective in diversifying our income streams across targeted sectors, locations and different phases of the value chain, helping to deliver a sustainable performance over the longer term.

SPECIALIST ENGINEERING AND ENVIRONMENTAL SERVICES

–

Demolition and remodelling

– Geotechnical engineering and deconstruction

– Environment

– Contaminated soil / ground water

– Asbestos removal

– Site remediation

– Decommissioning and hazardous waste management

INFRASTRUCTURE SERVICES

– Rail systems design –Wentworth House Rail Systems

– Rail civil engineering

– Rail overhead line electrification and distribution

– Power transmission

– Energy network distribution

– Renewables

– Highways civil engineering

– Energy storage

– Primary and distribution substations and telemetry

CONSTRUCTION SERVICES

– Engineering design –Wentworth House Partnership

– Civil engineering

– Piling

– Sub and super structures

– Transport piling

– Transport structures

SUPPORT SERVICES

– Preconstruction and commercial management

– BIM and digital engineering

– Civil engineering plant, lifting and haulage equipment

– Project delivery support services:

– Recruitment

– Operational safety training

– Occupational health and wellbeing

Dynamic growth sectors

Through our UK business network, Keltbray has a strong and growing presence in built environment and infrastructure sectors. Our business activities are shaped by the product innovation and delivery certainty of the services we provide to meet clients’ sustainable development challenges.

Carbon Reduction Plan

Our carbon reduction plan

Keltbray understands that climate change is the most important issue of our lifetime and the single greatest threat to our planet. The urgency to address the issue is underscored by the latest report from the United Nation's Intergovernmental Panel on Climate Change (IPCC), which provides a thorough examination of the physical science of climate change.

Keltbray’s science based target aligns to the Paris Agreement goal to keep global temperatures below 1.5*C

We as a society and as businesses cannot thrive on a dying planet, so we must act now, listen to the science and redefine the way sustainable development is delivered in order to avoid irreversible damage.

Darren James Chief Executive Officer

As part of our commitment to decarbonise our operations, we are tackling all aspects of our services to the industry and working with our supply chain to create the best technological solutions to offer to our client.

This carbon reduction plan provides an overview of Keltbray’s carbon performance and a strategy of how we will tackle each aspect of our organisation and our client offering, to find innovative solutions to achieve our Science Based Targets, which provide focus and direction to achieve our long-term 2040 Net Zero target.

Commitment to achieving Net Zero

Keltbray Group Ltd (inclusive of Keltbray Energy Ltd, Keltbray Rail Ltd and Keltbray Built Environmental Ltd) is committed to achieving Net Zero emissions by 2040.

BASELINE EMISSIONS FOOTPRINT

Baseline emissions are a record of the greenhouse gases that have been produced in the past and were produced prior to the introduction of any strategies to reduce emissions. Baseline emissions are the reference point against which emissions reduction can be measured.

Baseline

Additional details relating to the Baseline Emissions calculations

Keltbray’s energy performance is managed by the environmental sustainability department and any requirement such as ESOS and SECR is all managed and signed off internally.

This has allowed us to create strong systems to visualise our performance and improve our processes.

In 2020 we began working with Carbon Trust and gained the Carbon Trust Certification for our energy related activities.

CURRENT EMISSIONS REPORTING

The carbon mission

We have committed to reduce our emission in line with the 1.5*C Paris Agreement and achieve Net Zero by 2040 and have set this commitment with the Science Based Target Initiative (SBTi).

KELTBRAY’S LONG-TERM OBJECTIVE IS...

to achieve Net Zero by 2040

We have worked with the Carbon Trust and calculated our Scope 1, 2 and 3 emissions:

Keltbray Group Holdings commits to reduce absolute Scope 1 & 2 GHG emissions by 46.2% and commits to reduce Scope 3 GHG emissions by 55% per £’m of GEVA by 2030 from a 2019 base year.

Scope 1 & 2 emissions

Keltbray’s Scope 1 & 2 emissions are driven by the operations of our projects which require non-road mobile machine, light vehicles and heavy vehicles. In 2021 we were awarded the Carbon Trust Standard for the absolute reduction of our Carbon Emissions by 9.7%.

Scope 1 & 2 decarbonisation roadmap

As our scope 1 emissions accounts to 97.7% of the emissions we can directly influence making it of great importance Keltbray to have a clear road map of how we will reduce these emissions to achieve our 46.2% absolute reduction target by 2030.

The roadmap below shows how we will tackle direct emissions created from our onsite power requirements, heavy plant and RRVs, small tools, and road vehicles – year-on-year upto 2030 to achieve our Science Based Target.

– One supplier of generators

– All to have telemetry

– Hybrid where applicable i.e. cranes, welfare, etc.

– Grid connected projects

– All small demands (i.e. monitors) to be powered by hydrogen/PV panels 2021

– 50% telemetry

– Fuel saving tournament

– 10% Stage V

– HVO

– Stage IV and V

– HVO

– Battery and hydrogen power for equipment such as monitors and small tools

2025

– 75% Grid-connected projects

– Hydrogen/ammonia fuel cell

– Hydrogen fuelled generators

– Battery technology

– Collaborate with developers/ clients to enable all construction phases to have a TBS

– 100% telemetry

– Fuel efficiency reporting to be part of drivers performance reviews

– 85% Stage V

– Engage and drive suppliers to introduce 'zero emission plant'

– 100% of applicable projects to be connected to the grid

– Remote power to be provided by fuel cells and batteries

– Collaborate with developers/ clients to enable all construction phases to have a TBS

– All equipment telemetry feeding back to single portal

– Fuel efficiency reporting to be part of drivers performance reviews

– 75% of plant to be diesel free/HVO free

– All new light vehicles by 2030 will be zero-emission vehicles

– Mains powered and Stage V

– Battery and hydrogen power for equipment that can not be powered by mains

– 75% of plant to be diesel/

– HVO free

– Mains powered only

– Battery and hydrogen power for equipment that can not be powered by mains

2030

Carbon reduction projects

Completed carbon reduction initiatives

The following environmental management measures and projects have been completed or implemented since the 2019 baseline.

Utilities

IN HOUSE UTILITIES

Keltbray identified that in order to decarbonise construction projects, it is key that a mains power connection is made available. To ensure we are able to support our clients and achieve Net Zero sites and to reduce our own emissions, a ‘utilities’ team was created.

The scope of this team is to coordinate the projects electricity, gas and water disconnection and connection requirements with the relevant STATS in order to run and power the project in the most efficient manner.

Timing the utilities disconnection and connections right is critical to a projects sustainability and programme performance as it allows the project delivery team to utilise the existing supply for as long as possible and then move onto the new supply with minimal disruption.

Timing this incorrectly can resolve on the reliance of generators and transported water supply, which is costly and inefficient.

Where electricity supply is not available and we have to rely on generators, the utilities team is responsible to designing the most efficient system, this could vary from load on demand generators to hybrid systems where we rely on battery technology to power the base-load and only use the generators on peak demands.

OUR UTILITIES TEAM CAN:

– Coordinate the connection and disconnection of a projects utilities requirements

– Install telematics to ensure the most efficient power supply

– Reduce reliance on onsite generator use

RESULTS

Across all our sites in the last 12 months we… Saved

980,000 litres of diesel Saving

£700,000

Reduced carbon emissions by

2,466

Reducing our total emissions by 10%

Drone use for surveys

Keltbray has recently been awarded the Green Apple World Environmental Award for its use of drones for utility inspections. Keltbray was recognised with special merit in the approach to reducing the carbon footprint associated with traditional inspection methods by 50%.

Keltbray’s use of drones allows for more efficient inspections of utility installations, reducing the need for machinery, fuel and personnel and minimising disruption to the surrounding environment, for example, removing the need for land clearance for access.

Moreover, the use of drones has enabled the collection of thermal imagery, reducing the need to deploy all-terrain vehicles, replacing the use of

helicopters for LIDAR surveying, identifying defects in detail, eliminating asset downtime, and cutting inspection costs.

Furthermore, Keltbray has used drones to conduct electricity inspections on client’s assets without shutting down critical electricity infrastructure.

Overall, the use of drones in powerline inspections is revolutionising the conditionbased assessments, reducing a once resource, heavy, timeconsuming, labour-intensive, and high-risk process with a highly-efficient, safe, and data-rich alternative for sustainable development.

Anti-idling campaign

At Keltbray, we see carbon emissions holistically; the emissions related to construction machinery and road vehicles contribute to climate change which is also culprit to negative human health.

Using the latest technology isn’t enough to reduce our emissions as much as possible, which is why we launch the fuel saving tournament.

The fuel saving tournament challenges our machine and HGV drivers to drive as efficiently as possible and awards those with the biggest fuel saving.

This simply but effective exercise has reduced our idling by over 40% and gained industry wide recognition.

“Long-term exposure to air pollution is killing one in 19 people in the UK, according to researchers at Centre for Cities.”

Source:

HS2 used our tournament as an example of good practice across all their sites.

Carbon reduction projects cont.

Zero-diesel project

Keltbray has implemented zero-diesel projects by utilising battery technology. Where battery technology does not suffice we utilise hybrid solutions for project power requirements.

Hydrogen

Keltbray have recently partnered with a fuel cell supplier and are planning to run an industry first demonstrator of a 10kVA hydrogen fuel cell 2022.

Keltbray is working with key power and energy suppliers to expose the requirements to move to a hydrogen power industry…

Hydrogen power offers an alternative energy that may be an effective solution to reducing emissions in and around the industry.

Currently being trialled at our M621 Highways project in Leeds:

– The first to be deployed in the UK

– The ‘S Series Fuel Cell Power Tower’ is being trialled and monitored for six weeks

– This technology has the potential for being a key milestone in clean green energy

Scope 3 emissions

Scope 3 emissions account to 89% of Keltbray’s operations so it was key that we quantify such emissions and where they come from.

Having had our Scope 3 emissions calculated by the Carbon Trust, we now have a clear set of carbon hot spots for those materials and relevant suppliers which contribute to our Scope 3 emissions.

The graphic below provides an overview of how Keltbray’s operations contribute to the relevant scopes of emissions.

Digitisation and Scope 3 emissions

Having calculated our Science Based Targets with the Carbon Trust, we have gained a great appreciation and understanding of how each Greenhouse Gas category is calculated into carbon equivalent emissions. Consequently, we have created a new reporting platform which links all of our spend through our buying platform, COINS, and are reporting it into volumes and carbon.

Where possible these emissions are calculated using product specific carbon conversion factors, for example concrete, steel, timber, and where such conversion factors are not yet available, we use industry approved conversion factors to enable us to convert our expenditure into carbon equivalent emission.

This new reporting platform allows Keltbray to run live reports and visualise the embodied carbon related to the different carbon life-cycle stage of its operations.

Materials Reporting for All Contracts

Action Plan

If Keltbray were to decarbonise its entire operation, we would only reduce our total emissions by 11%, so it is key that we engage and work with our supply chain.

Some good examples:

– We have set our material supplier a minimum requirement of responsible sourcing and manufacturing certification, BES 6001, FSC/PEFC, CARES and EPDs

– Sustainable Supply Chain Team – six-weekly meetings

– Supply chain engagement and collaboration

– PAS 2080

– ConcreteZero Initiative

Achieving PAS 2080 –Carbon Management in Infrastructure

In 2022, Keltbray gained BSI certification for its PAS 2080 Carbon Management in infrastructure compliant system.

By integrating carbon management as part of our already existing environmental management and business management practices, we have adopted the requirements of the PAS 2080 standard and use it to strengthen our processes and the support to our clients.

Our Carbon Management System challenges all aspects of our business and our supply chain and has set a clear framework to challenge our own processes and collaborate with the industry to achieve Net Zero.

ISO 14001 processes

– ISO 14001 Environmental Management System

– Policy and strategy for Carbon Management

– Implement a carbon management process

– Continuous improvement

Shared processes

– Integrate carbon management process with existing business practices (procurement, delivery programme, environmental management)

– Promote early engagement

– Objectives and targets

– Apply the carbon emission reduction hierarchy

Carbon Management processes

– PAS 2080 Carbon Management in Infrastructure

– Implement governance structure

– Collaborate with supply chain

– Systems in place to quantify GHG emissions

Process map summarising the key components of the PAS 2080 carbon management process and their respective clause numbers

KEY EXAMPLES OF OUR DECARBONISATION WORK

Keltbray are constantly challenging engineering designs and boundaries in order to explore new materials which reduce the embodied carbon of services and operations. At our Canada Water Project working for British Land, Keltbray collaborated with key supply chain partners Wagners and Capital Concrete to install permanent works piles using Earth Friendly Concrete.

EFC® is a zero cement, geopolymer concrete supplied by Capital Concrete in London. Changing from the traditional CEMIIIA mix to EFC® mixes achieved a total saving of 240tCO2e, or approximately 45% of the embodied carbon, through the elimination of traditional

Ordinary Portland Cement. EFC® also has significant performance advantages over traditional concrete, which include improved durability, lower shrinkage, earlier strength gain, higher flexural tensile strength and increased fire resistance. Additionally, Keltbray have delivered several projects recently including Canada Water Plot A2, using GGBS concrete mixes which are particularly “in vogue” at the moment with a lot of consultants prescribing high percentages potential of GGBS within concrete mixes to try and facilitate a more carbon friendly build. Generally use of GGBS in concrete mixes varies between 25-70%, whilst we generally have no problem with using 25% in

blended concrete as a whole on a project, we would suggest that higher percentages of GGBS are used in female piles, basement, raft, ground bearing slabs, capping beams, pile caps and ground beams, as this would not affect efficient re-use of formwork and back propping systems commonly used in concrete frames nor programme. The availability of the GGBS mixes though would have to be reviewed nearer the time of construction.

Piling at our Canada Water Plot A2 project

The offsite-manufactured Hope Sculpture in Glasgow

management

HIPER® PILE

The HIPER® Pile project is a highlyinnovative programme of new technologies being developed by Keltbray as part of our decarbonising construction targets.

The key elements of the new technologies are:

HOLLOW

Upto 70% material volume reduction

IMPRESSION

Improving shaft friction capacity by up to 40%

PRECAST

Embracing off site manufacture, improving quality and productivity

ENERGY

60% increase in thermal conductivity and de-risks delivery over traditional thermal piles

REUSABLE

The solution to enable a fully circular economy within deep foundations

After securing a total of £1.1m in funding from Innovate UK as part of UKRI’s Transforming Construction Challenge, Keltbray developed the HIPER® pile foundation system. This system incorporates a suite of individual innovations which, when combined, offer unprecedented savings in embodied carbon for deep foundations and the opportunity to significantly reduce operation carbon within the built environment.

As of June 2023, Keltbray have secured three patents for various elements of the ground-breaking HIPER® Pile innovation and have one further pending.

As a direct result of our collaboration with academia, we have also exclusively licensed the City, University of London patent for the Hollow, Reusable pile.

HIPER® Piles being made

HIPER® Pile installation

Circular economy

Keltbray see everything we demolish as a potential asset to re-use. To us, sustainability in demolition means looking at the process of dismantling and deconstruction; exploring how much of the value of arising materials can be utilised at their highest value for as long as possible.

Everything has a life-cycle and this applies to buildings no longer fit-for-purpose. A key strategy we use is to view all building constituents as potential assets; while not everything may be reusable, each and every part should be a valuable resource for future use on or offsite.

As part of our commitment to circular economy, we will only use material which has been sourced sustainably and is supported by the relevant certification schemes.

Circular economy initiatives

Recent examples of Keltbray's circular economy success on projects includes:

Woolgate Exchange

–

Sending c.50,000 raised floor tiles to RAFI to be refurbished and reinstated into new/refurbished offices

– Sending carpet tiles/ furniture to charities including Hawa Trust

KELTBRAY PRIDES ITSELF ON COLLABORATING WITH THE SUPPLY CHAIN AND IS ALWAYS LOOKING FOR WAYS TO REDUCE WASTE

In 2021, several initiatives to eliminate single-use plastic were achieved by such collaborations; it was agreed that the suppliers will stop double packing items such as PPE and now all PPE simply comes into boxes without the additional plastic packaging.

– Removing steelwork (in the next phase) for refurbishment and later re-use in the cut and carve/enabling phase

Salisbury Square

Materials recovered/re-used:

– 300m² York paving

– 500m² of granite cladding panels

– 100m² roof slates

– 10 tonnes of bricks

– Hardwood stair handrails

– Timber entrance doors

– Re-use of office furniture for site welfare

– Carpet tiles and raised access floors recovered for recycling

– Glass recycling

2 Aldermanbury Square

– Providing access for the incumbent MEP engineering firm to remove and repurpose spares and equipment

– 1,500 tonnes reuse of steel with removal and transport of c.770 tonnes of construction steel for re-use on other construction projects

Keltbray became a signatory of ‘The Climate Pledge’ in 2021 committing to achieve net zero emissions by 2040 and also committed to setting a science based target.

Awards and registrations

Declaration and sign-off

This Carbon Reduction Plan has been completed in accordance with PPN 06/21 and associated guidance and reporting standard for Carbon Reduction Plans.

Emissions have been reported and recorded in accordance with the published reporting standard for Carbon Reduction Plans and the GHG Reporting Protocol Corporate Standard1 and uses the appropriate Government emission conversion factors for greenhouse gas company reporting2

Scope 1 and Scope 2 emissions have been reported in accordance with SECR requirements, and the required subset of Scope 3 emissions have been reported in accordance with the published reporting standard for Carbon Reduction Plans and the Corporate Value Chain (Scope 3) Standard3

This Carbon Reduction Plan has been reviewed and signed off by the board of directors (or equivalent management body).

Vince Corrigan Chief Operating Officer

Registered office: St Andrew’s House Portsmouth Road Esher Surrey KT10 9TA

1 https://ghgprotocol.org/corporate-standard

2

https://www.gov.uk/government/collections/government-conversion-factors-for-company-reporting

3 https://ghgprotocol.org/standards/scope-3-standard