The BBC reports that the Longannet power station is to close in 2016.
Scottish Power has announced plans to close its huge coal-fired power station at Longannet in Fife early next year.
The move comes after the energy firm failed to win a crucial contract from National Grid.
Scottish Power said it was "extremely disappointed" at National Grid's decision.
The Greens are celebrating.
Gina Hanrahan, from WWF Scotland, said National Grid's announcement was "another important step in Scotland's energy transition".
The correspondent who pointed the story out to me (to whom many thanks are due) adds this:
National Grid have given a £15million contract to maintain grid voltage to [the gas-fired station in] Peterhead, but that is for only 385MW of the station's potential 1.2GW.
Longannet is 1.8GW (2.4 in theory but they don't like to crank it up nowadays). So a net loss of 1.4GW capacity and a significant loss of grid inertia. It's maybe not the best analogy, but National Grid are now sailing very close to the wind.