Suppliers of the highest-performing range of energy building materials on the market
Our Power range has been developed to supply the energy sector with the materials needed to reduce power waste, improve electrical safety, and enhance energy transmission. With the industry evolving at pace, there’s increased demand for products that will support future-ready energy. From the expansion of transmission networks to the rapid growth of AI and data centres, our Power range of products can be used in any high energy-intensive application.
We also provide the sector with sustainable building solutions designed for low carbon power generation, transmission, storage and distribution projects. From recycled aggregates and lower carbon concrete to SCMs and GGBS, our materials help to reduce the carbon footprint of energy infrastructure construction.
We work with contractors, developers, and infrastructure partners to provide the products and services needed to deliver safe and efficient energy projects. To discuss how we can support your energy generation project, please get in touch.
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Flagship products designed specifically for the energy sector
With the UK’s transition to green, renewable energy growing, demand on underground power networks is, too. To maintain efficient energy transmission, it’s essential to dissipate the heat effectively. We developed our Power range to provide heat-conducting solutions for the energy sector, including heat-conducting concrete and grouts, and cement bound sands.
PowerCrete: Heat conducting concrete
- The UK’s only concrete that can achieve a thermal conductivity (TC) rate of greater than 2.5 W/(m.K)
- Designed to enhance the thermal performance of infrastructure projects
- Ideal as a bedding and infill material for underground HV and UHV cabling applications
PowerSand: Cement bound sand (CBS)
- Specifically designed to protect energy infrastructure and storage
- Reduces energy loss in the network
- Easily compacted around power cables
- Cuts costs and manpower during installation
PowerSand CBS is one of the specialist materials relied upon to pretect, bed, and infill some of the new HV and UHV cables in the Great Grid Upgrade. Read our article to learn more: The role of PowerSand CBS in enhancing renewable energy infrastructure.
PowerFill sand
PowerFill is a high-quality fine aggregate designed as a cable backfill material for underground cable installations.
It offers stability for long-distance underground cable routes and allows for future access by accommodating minor ground movements.
CableCem: Heat conducting grout
- Developed as an infill material for jacket tube systems
- Excellent free-flowing properties
- Well-suited for infilling the residual annular space between the cable and the jacket tube
CableGel
CableGel is a cement-free solution that’s typically used to fill the narrow space between the power cable and the surrounding jacket tube. Its flexible gel-like consistency makes it particularly easy to replace cables when necessary.
Energy applications we work with
We provide a wide range of building materials and services across the entire energy sector, from generation and transmission to storage and distribution. To find out more about our experience in your application area, please contact us.
Generation
Windfarms: Offshore and onshore
Since 2000, we’ve been involved in the construction of onshore and offshore wind farms. Our capability is built on global experience from many major projects that we’ve been involved in. These include:
- Supplying the materials for the foundations for over 100 wind turbines at Hellrigg Wind Farm, Cumbria
- Providing nearly 60 kilometres of access roads, five substations and five control rooms with a total power generation output of 207 megawatts
Nuclear
Nuclear power is a long-established part of the UK’s energy mix, and it will continue to play a major role in reliably generating affordable low-carbon energy. Since the 1980s, we’ve worked with the nuclear industry, with flagship projects including Hinkley Point C, the proposed first of a new generation of nuclear sites. We’re the supplier of choice to the client and contractors for the provision of concrete, cement and aggregates.
Building materials for the nuclear industry
Concrete is a practical material for a permanent shield against the dangers of radiation. It’s also:
- Cost effective
- Easy to use
- Structurally self-supporting
- Virtually indestructible
- Without maintenance costs
evoBuild low carbon GGBS is our sustainable ground granulated blast furnace slag product and is used to safeguard radioactive waste during the decommissioning of old power plants. Its particle size distribution enables excellent flow properties with good water retention.
Leading the way in UK construction with BS EN 19443 certification
Heidelberg Materials is the only company in the UK construction industry to achieve BS EN 19443 certification. This recognised standard supports a strong nuclear safety culture and ensures suppliers to the nuclear sector meet the highest quality requirements. It demonstrates Heidelberg Materials' commitment to delivering reliable, high-quality solutions for the energy sector.
Find out more by reading: How Heidelberg Materials UK leads the production of nuclear grade concrete.
Hydropower, dams and reservoirs
Concrete’s high compressive strength allows it to resist high water pressure, making it ideal for dams and reservoirs. Our waterproof concrete solutions resist erosion from flowing water and have dense masses that stabilise water structures against movement. Waterproof concrete also provides a durable, impermeable barrier to prevent water loss from dams and reservoirs over decades.
To control cracking, FibreCrete, our premium range of fibre-reinforced concrete, can be applied to water structures. To support the construction of energy generation infrastructure, our Power range of cement-bound sands and grouts can be used. Our low carbon materials, including evoZero carbon captured cement and evoBuild low carbon concrete, are increasingly being used for more sustainable hydropower projects, too.
Gas
Gas currently forms an integral part of the UK’s generation mix. It’s a reliable, flexible source of electricity that will continue to play a major role alongside low carbon technologies.
As the cleanest fossil fuel, gas is used to replace ageing coal-fired generators. We’ve supplied high-workability concrete to the £450 million Severn Power Station, near Newport, Gwent, as well as the construction of the Liquified Natural Gas (LNG) import terminals in South Hooks, West Wales. We also delivered 245,000m3 of concrete to Troll A , the highest concrete platform ever constructed for the oil and gas sector.
We’re actively working with the sector to provide alternate and more sustainable building materials to projects, including evoZero carbon captured cement and evoBuild low carbon concrete.
Solar
We supply the solar industry with a variety of building materials to support the production of clean, affordable power. These include aggregates for sub-bases and concrete for the foundations of solar infrastructure.
Distribution
Small modular reactors (SMRs)
SMRs play an important part in the UK's future low-carbon energy mix. They provide reliable, low-carbon electricity with a smaller physical footprint and generally shorter construction times than conventional nuclear power stations.
Our Power range of heat-conducting concrete solutions are used in the manufacturing of these smaller-scale nuclear reactors. We’re also the only heavy building materials manufacturer in the UK certified to produce nuclear grade concrete in accordance with BS EN ISO 19443.
Landfall
Our Power range products are used in various landfall applications, including at Inch Cape, one of Scotland’s largest offshore wind farms. We’ve supplied 242m3 of PowerCrete heat conducting concrete to this project, which will create enough green energy to power 1.6 million homes when it becomes fully operational, which is expected to be in 2027.
Biomass and waste to energy
Today’s waste-to-energy plants are highly efficient and use municipal solid waste as their fuel rather than coal, oil or natural gas. We have significant experience contributing towards large projects that take advantage of these relatively new methods of energy creation, focusing on preserving a sustainable planet for future generations.
Materials we supply to the biomass industry include our fibre reinforced concrete, FibreCrete Unlike steel mesh, FibreCrete isn’t corroded by biomass. 3,000m3 of this concrete was used in the construction of a new 2.4 megawatt anaerobic digestion plant in Cumbria.
Transmission and storage
Ports and wharves
Cement bound granular material (CBGM) is a type of hydraulically bound mixture made from a blend of aggregates, cement, and water. It provides a cost-effective and durable alternative to traditional flexible materials and withstands the heavy demands of ports and harbors. We provide CGBM as well as hard-wearing concrete and asphalt products which all stand up to these harsh environments.
Grid upgrades
As the UK invests in upgrading its electricity grid, we can supply aggregates, concrete and asphalt essential for delivering the substations, foundations, access roads and infrastructure needed to power a low-carbon future.
Our Asphalt and Concrete Collect & Go services provide quick, reliable access to high‑quality materials, helping keep projects on schedule and reducing downtime. These flexible options support both major infrastructure works and smaller maintenance activities, ensuring a consistent and dependable supply.
Battery storage facilities
As the UK accelerates its transition to renewable energy, battery storage systems are becoming essential for balancing the grid and ensuring a reliable power supply. Our innovative, low carbon construction materials, which we’ve designed specifically for energy infrastructure support this transformation. These include evoZero carbon captured cement, evoBuild low carbon concrete, and our Power range of heat conducting solutions.
Substations
Our products have already played a pivotal role in landmark battery storage projects, like the 230MW Uskmouth Substation in Newport. 1,000m3 of PowerSand CBS Extra, one of our cement bound sands, was used for underground cable installation in this sustainable redevelopment project.
Data centres
We provide products for every stage of data centre construction, including:
- Aggregates for sub-bases
- Concrete for foundations, including evoBuild low carbon concrete and evoZero near-zero carbon captured cement
- Asphalt for roads and car parks
- Underground cabling solutions from our Power range
Consumption
EV charging
We supply a range of building materials to support the construction of EV charging points. These include:
- Asphalt for car parks
- Concrete for charging unit bases
- Our Power range for electricity transmission and cabling
- Packed products for smaller projects
Utilities
We supply asphalt, aggregates, concrete, CBS, and recycling services to a range of utilities activities in the UK. From street works and reinstatement to electricity, gas, water, and telecoms infrastructure, we provide utilities projects with reliable products and solutions, all underpinned by our technical expertise.
Asphalt and concrete is available to collect at a range of sites. Check our location finder for your nearest plant.
Decommissioning
We supply up to 2,000 tonnes of GGBS every year to Sellafield Ltd for the decommissioning of one of Britain’s older nuclear power plants in Cumbria. A 90 per cent GGBS to 10 per cent CEM I ratio is used in the grout for the encapsulation of waste streams process, which comes from the thermal oxide reprocessing plant. This high ratio controls the strength gain, reduces the heat generated, minimises the risk of thermal cracking and restricts diffusion.
Sustainable solutions for the energy sector
Our growing range of sustainable building materials and services is designed to cut CO₂ emissions, support circularity, and deliver long‑term performance. Across cement, concrete, aggregates and asphalt, we help you lower embodied carbon in your energy projects, without changing how you build.
From lower carbon and carbon captured materials to recycled content, warm‑mix technologies and transparent carbon data, our solutions are practical, proven and available now.
Concrete EPDs
At Heidelberg Materials UK, we publish independently verified EPDs to give you confidence in the carbon data behind our ready-mixed concrete products.
evoHub learning centre
Learn about how heavy building materials are being decarbonised at our evoHubs in Greenwich and Clerkenwell.
evoHub Greenwich
evoHub Greenwich is our practical learning environment where visitors get a hands-on approach to building their sustainability knowledge.
Through product demonstrations, trials, and other events, it’s where you’ll gain a better understanding of how Heidelberg Materials is pioneering the decarbonisation of the construction industry.
evoHub Goswell Road
At evoHub Goswell Road, we offer a variety of opportunities for our industry’s legislators, influencers and specifiers to learn about how heavy building materials are decarbonising. We also encourage discussion on sustainability throughout construction. Click the button below to find out about the CPD presentations, seminars and Meet the Expert drop-in sessions we offer at this evoHub.
Why work with us?
- Wealth of experience in delivering projects in the energy sector
- Full assistance throughout the tendering process
- A bespoke solution can be created to meet your needs
- We’re the first company in the UK construction industry to achieve BS EN ISO 19443 certification, the esteemed quality management standard for those supplying products and services that are important to nuclear safety
- Leaders in carbon capture and storage, in Brevik, Norway, and Padeswood, UK
- Producers of the world's first carbon captured near-zero cement, evoZero
- The highest commitment to health, safety, environment and quality
- The UK’s leading provider of concrete, cement, aggregates and asphalt
Our accreditations
Contact us
Complete the form below to find out more about our building materials and services for energy, or contact our major projects team.
Energy FAQs
What building materials are required for energy infrastructure projects?
Energy infrastructure projects require a wide range of building materials, with the exact products dependent on factors including transmission requirements. Our Power range is the highest performing and most comprehensive range of energy building materials on the market. These products have been successfully used in some of the world’s largest energy projects, including Hinkley Point C, National Grid substations, and Hornsea offshore wind farm.
Alongside our Power range, we supply a range of other materials to the energy sector. These include:
- Aggregates (including recycled aggregates) for access roads, sub-bases and drainage
- Asphalt for utility works, roads and pavement reinstatements, access roads
- Cement bound sand for cable trench reinstatement and underground utility works
- Ready-mixed concrete suitable for all energy projects including high capacity energy generation, foundations, walls and substations
- Drainage solutions to help manage surface water across energy sites
To understand the most suitable material for your project, please contact our team.
What building materials are used in renewable energy projects?
We’re proud to supply a range of sustainable building materials for renewable energy projects, including:
- evoZero carbon captured cement, produced using carbon capture and storage technology
- evoBuild low carbon concrete, which offers a CO₂ reduction of at least 50% compared to a fixed Global Cement and Concrete Association (GCCA) reference value
- Our Power range, which includes thermally conductive bedding materials and thermally conductive fill materials
Can you supply materials for grid infrastructure and electricity network projects?
Yes, all of our products can be used for grid and network projects. To maximise performance, we have a specially designed Power range that allows the heat to dissipate, making energy transmission more effective, reducing energy loss. We also have tipping facilities at our recycling centres across the country, to dispose of construction and demolition waste.
Are recycled aggregates suitable for energy infrastructure projects?
Yes, recycled aggregates can be used for sub-base foundation applications for all types of energy infrastructure projects including data centres, substations, solar farms and utilities.
Do you supply materials for both new-build and energy upgrade projects?
Yes - we deliver concrete, aggregates and asphalt across the country. Plus, you can collect concrete and asphalt from most of our plants. We also provide tipping facilities at our recycling centres for construction and demolition waste as part of both new project excavation and upgrade retrofit.
If it’s smaller projects you're working on, our range of packed products including 40N concrete, postfix, cold lay asphalt and cements, are available from builders merchants across the country.
How do you support large-scale energy infrastructure projects?
For larger scale projects, we have a Major Projects team that can support you from initial enquiry through to project completion. Our experienced team can help you find the right products to fit the performance and sustainability specification including low carbon, high strength, or specialist grade materials.