Looks like some of the remaining coal fired power stations are being warmed up to support the grid in response to little wind, high gas prices and a fire shutting down one of the French interconnects.
"The market price at one of the UK?s main electricity auctions cleared at a record price of £2,500 per megawatt-hour for the hours of peak demand on Wednesday, compared with a typical baseload price of about £40/MWh throughout 2019 and 2020."