Infographic: Promoting a sustainable energy future

Publication date
27th May 2021
Information types
Policy areas

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Promoting a sustainable energy future infographic - plain-text version

Facts and figures on the UK power mix, environmental programmes and offshore transmission.

What generates Britain's power?

UK electricity supply mix 2019 (%):

  • Coal-fired power stations 2.3% (6.49 TWh)
  • Gas-fired turbines 41.9% (116.57 TWh)
  • Renewable sources 29.4% (81.69 TWh)
  • Nuclear plant 18.4% (51.03 TWh)
  • Other sources 0.4% (1.01TWh)
  • Interconnectors 7.6% (21.17 TWh)

Reducing the UK’s carbon emissions and increasing the energy we get from sources consumers’ interests at our core, we run a range of government consumer and like renewables, will help to ensure the security and sustainability of our energy supplies for generations to come. With the protection of future and existing environmental programmes and manage the regulatory regime for offshore electricity transmission networks

Environmental programmes

£9.62 Billion: the value of environmental schemes we've administered during 2019/20.

Helping people in difficult situations

£2.79 Billion: amount of support to fuel poor households through the Warm Home Discount since its launch in 2011 to March 2020.

£348 Million: how much suppliers paid in support to people who needed it in 2019/20.

The UK government announced that the WHD scheme will continue to support fuel poor customers until 2020/21 at the 2015/16 level of support of £320 million a year, rising with inflation.

Promoting energy efficiency and renewable electricity

3,119,809: the number of efficiency measures installed under the Energy Company Obligation across over 2.2 million households to May 2021.

114,901,826: Certificates (ROCs) issued for eligible renewable electricity generated under the Renewables Obligation in 2019/20.

860,285: The number of solar panel installations registered for the Feed-in Tariff to May 2021.

Generating heat through more renewable sources

Domestic Renewable Heat Incentive

88,550: Number of renewable heat installations accredited to May2021.

Non-Domestic Renewable Heat Incentive

5.3 GW: The total installed capacity to May 2021.

Offshore transmission

£5 Billion: Investment value in 6.9GW of offshore transmission projects under our competitive tender process (Tender Rounds 1-5).

£700 Million: Estimated savings for consumers resulting from our competitive tender process to connect offshore wind farms to the GB high voltage grid. (CEPA and BDO evaluation Review based on Net Present Value figures at 2014/15 price levels)

UK electricity supply mix data from Department for Business, Energy and Industrial Strategy: Energy Trends: Electricity.

Environmental programmes data from Ofgem public reports. Offshore estimated savings from Department of Energy and Climate Change for Tender Rounds 1-3.

Information correct at May 2021.

Behind the numbers

You can find fuller historical data and information on the UK's electricity generation mix, environmental programmes and offshore transmission via the following links:

Terms explained

Competitive tender processopen key term pop-up

Competitive tender process

Offshore transmission licences are granted to companies to operate the pipes, cables and other assets that transport energy generated offshore to Britain's mainland.

Licences are granted through a competitive tender process which we manage. In doing so, we make sure that generators are partnered with the most efficient and competitive players in the market. This should result in lower costs and higher standards of service for power generators and, ultimately, consumers.