Drax has dropped plans to develop any new gas plants, including its plans to build Europe's biggest CCGT plant as it moves to turn its back on fossil fuels.
Renewables have overtaken fossil fuels in Europe in what is being hailed as a “landmark” moment.
Fossil fuel generation has more than halved over the last decade, hitting a new record low in 2020.
SSE is to continue to focus on renewables and networks as it sells all of its interests in its portfolio of gas exploration and production assets.
Electricity generated by renewables hit a new high in 2019, rising by 4% to reach 37.1%.
Ofgem has fined InterGen £37 million for sending National Grid misleading signals to make what the regulator has described as a “substantial profit”.
Renewables are “on the brink” of becoming Britain’s main electricity source, according to research by EnAppSys.
Renewable generation hit a new record in Q3, producing 38.9% of the UK’s electricity.
The UK will have no problem meeting energy demands throughout this winter thanks to a surplus in generation according to the National Grids Winter Outlook report, released on the 9 October.