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Clean energy and decarbonisation

At Costain, we recognise the pressing need for the UK to increase the pace of decarbonisation to reduce greenhouse gas emissions.

The UK has committed to achieving net zero carbon emissions by 2050. To meet this target, we must make significant changes in the way we heat our homes, power industry, generate electricity and fuel our vehicles.

The Costain solution

Our engineering and consultancy experts do this by shaping strategy, defining technology solutions, complex project delivery and asset optimisation.

Specialist services


We help our clients get the best results from their investment by providing advice, engineering, design and management expertise in all aspects of project delivery from concept, through construction and commissioning, to decommissioning and disposal.

Our consultants work in nuclear new build, asset optimisation and life extension, and decommissioning; developing ground-breaking technologies to safely manage and reduce the volume of the UK’s legacy waste.

Learn more about our expertise in nuclear.


Costain has been carrying out consultancy and engineering in hydrogen and CCUS for over 70 years. Our gas processing and safe gas handling knowledge make us the best people to support the deployment of hydrogen and CCUS. We are at the forefront of transforming the entire hydrogen value chain, from production, storage, deblending and distribution to carbon capture and storage. We have the knowledge and experience to shape the future of the UK’s power, transport and heating sectors.

We are helping our clients create climate change action-plans that enable them to meet their objectives in implementing a net zero strategy. We do this by helping our clients shape their path to net zero and guiding them to deliver by implementing our innovative consultancy, asset optimisation, technology and complex delivery services.

Learn more about our hydrogen capability.


Renewables will play a vital role in producing increasing amounts of clean energy to accommodate the demands of electric vehicles and hydrogen production. Our unique intellectual property for renewables and sustainability solutions mean we can help clients by: 

  • Creating cost effective, highly efficient schemes to convert renewable electricity into hydrogen
  • Developing schemes from concept, feasibility and FEED
  • Providing planning and environmental consultancy
  • Supporting final investment decisions through generation of investment grade CAPEX and OPEX
  • Consulting on suitable location and design for new renewable projects
  • Offering programme management and project evaluation
  • Providing asset management advice and optimisation of assets.

Latest in Clean energy and decarbonisation

Leigh Wakefield

Meet your experts

Dave Richardson

Having worked in the energy sector for over 35 years and as a chartered project specialist, Dave is passionate about accelerating the transition to a decarbonised energy market and, recognising Costain’s significant track record across the full life cycle in carbon capture, utilisation and storage (CCUS) and hydrogen, is driving core components of the company’s climate change action plan and initiating the deployment of deep decarbonisation.

Get to know Dave
Syla Clarke

Lead process engineer Syla Clarke is passionate about applying her key skills in process engineering and project management to help Costain accelerate the UK towards a carbon neutral future as part of the company’s climate change action plan.

Get to know Syla
Hywel Woolf

In addition to being a chartered environmentalist, Hywel is also a chartered waste manager, who joined Costain just over five years ago as environment manager working on the A465 project. In 2019, he was appointed as the discipline lead for environmental consulting where he is responsible for growing the capability with new and existing clients.

Get to know Hywel