Engineer working on CHP unit, with Combined Heat and Power logo overlaid
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Combined Heat and Power (CHP)

Amid volatile power prices, many organisations are saving up to 40% on their energy costs with Combined Heat and Power (CHP), also known as cogeneration.

Do you have a CHP project in mind?

Are you a large organisation that consumes over 500,000 kWh of electricity and is planning to start a new energy project in the next 12 months?

As one of the UK’s leading CHP suppliers and operators, we can help you reach your cost and carbon-saving goals. Tell us about your project by completing our simple form to get the conversation started.

up to

energy cost savings vs traditional heating and supply, with a 1-3 year typical payback period


efficiency ratings vs conventional heating and energy supply

more than
35 YRS

CHP experience across sectors such as Healthcare and Manufacturing


of CHP units installed by us worldwide

Why choose Centrica Business Solutions for your CHP unit?

Save energy by creating your own with CHP

Watch our video to see how CHP units can produce electricity and heat for your business at the same time

Understand how you can drive energy efficiency and benefit from reduced costs and carbon emissions.

Fuel your CHP unit with 25% hydrogen

Our long-term partnership with Combined Heat and Power (CHP) providers mtu and MAN Energy Solutions is innovating to ensure our CHP units can meet the technical and commercial challenges of reaching net zero.

We offer a 25% blended-hydrogen solution in partnership with mtu. And excitingly, we're already trialling 100% hydrogen-fuelled CHP, which we anticipate will be available by 2025.

Combine CHP with large-scale Solar to accelerate your journey to a low-carbon future

CHP benefits for your organisation

  • Lower your electricity costs by up to 40% and reduce reliance on the grid
  • Achieve a potential payback period of 1-2 years in some circumstances, or a typical payback of 2-3 years
  • Future-proof your energy with hydrogen-ready CHP engines
  • Reach efficiency rates in excess of 80% by using waste heat on-site
  • Gain budget stability through predictable electricity costs and accurate forecasting of operating expenses
  • Enhance site resilience and minimise the risk of operational failures
  • Stay compliant with assessment such as BREEAM and Part L regulations
Learn how our 35+ years of Operations & Maintenance (O&M) experience can keep your CHP unit running optimally
How does CHP work?

CHP systems convert a single fuel into both electricity and heat in a single process at the point of use.

Single fuel for power and heat

Providing almost continuous operation, a CHP engine requires only a single fuel to function, simplifying your infrastructure requirements.

Electricity production

The engine (coupled to an alternator) generates power, which is then converted into usable electricity to meet on-site energy demands.

Heat recovery

Simultaneously, heat is recovered from the engine exhaust, jacket and water/oil cooling circuit. The heat is then made available for redistribution on-site.

Next steps for your CHP system

We're with you every step of the way to ensure you get the most from CHP, from initial consultation to operating and maintaining your CHP plant.

Four stages to deploying and maintaining CHP

Speak to our CHP experts

Do you have a CHP project in mind? Contact our team of experts today to find out how you could save up to 40% on electricity with low-carbon heat and power.

Frequently asked questions about CHP

CHP, or Combined Heat and Power, is a solution which produces heat and power (electricity) onsite from a single fuel. This is also known as cogeneration, and can be part-powered by hydrogen as a net zero solution. Some CHP units also generate chilled water, known as trigeneration.

CHP can reduce energy spend and reliance on the grid through onsite generation.

Some CHP units use natural gas, but many use other fuels. The Digest of UK Energy Statistics states that renewable fuels power around 15% of CHP capacity in the UK, and some are powered with green gas certifications. CHP is also already available with 20% blended hydrogen - and further tests are ongoing. This ranges from a 20-40% blend to 100% hydrogen engines, future-proofing CHP.

CHP captures heat produced in electricity production, such as from water cooling circuits. This can then be redistributed onsite, providing simultaneous heat and power production.

In 2017, Centrica Business Solutions acquired ENER-G Cogen International Limited, also known as Energ or ENER-G Cogen. Ener-G’s CHP business now forms a part of Centrica Business Solutions and complements our existing capability in installing and managing sustainable energy solutions. As part of Centrica Business Solutions, customers can benefit from over 35 years’ experience as a global pioneer of modern CHP technology, across a range of sectors such as manufacturing and public sector organisations.

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