EDF and British energy partner Centrica PLC (LSE:CNA) have extended the lives of four nuclear power stations located in Heysham, Hartlepool and Torness.
Heysham 1 and Hartlepool were granted a one-year extension and are now expected to generate electricity until March 2027.
Heysham 2 and Scotland’s sole operating nuclear power station, Torness, were granted a two-year extension, meaning they will operate until 2030.
The lifetimes of nuclear plants are determined by regular graphite inspections by the Office for Nuclear Regulation, after which a defuelling and decommissioning process is initiated.
FTSE 100-listed Centrica says the extensions will support the UK’s net-zero energy ambitions.
“In an energy system that is becoming ever more intermittent, baseload power generation that doesn't depend on the sun shining and the wind blowing is essential to keeping the lights on,” said Centrica’s chief executive Chris O’Shea.
“There is no silver bullet that will achieve net zero, but a diversified energy system underpinned by nuclear power is a positive further step towards a greener, fairer future.
“We're delighted that a further extension was possible which allows us the time necessary to develop other zero-carbon dispatchable electricity generation options such as new nuclear and hydrogen-fired generation.
“We must move at a faster pace to ensure that these replacement technologies are deployed in time."
Labour leader Keir Starmer has thrown his support behind nuclear power, calling it a “critical part” of the UK’s energy security.
He has criticised the former Tory government for failing to greenlight any new nuclear plants during 14 years in power.
Centrica has a 20% stake in its nuclear joint venture with EDF.