Ayrshire Power withdrew its planning application for a new coal power plant at Hunterston last summer.
He said the Scottish government would invest the cash in the firm's Hunterston offshore wind turbine test facility.
Hinkley Point B in Somerset, and Hunterston B in North Ayrshire, are now expected to remain operational until 2023.
The local community had been pressing for a widening of the main road to Hunterston power station and Clyde Port.
More than 1, 500 workers are employed across Hinkley Point B and Hunterston B, which each generate enough electricity for one million homes.
Hunterston was ear-marked as a site for a potential coal-fired carbon capture and storage (CCS) power station to replace the current facility.
The firm behind controversial proposals for a new coal-fired power station at Hunterston in Ayrshire has formed a consortium to move the project forward.
The Perth-based group wants to set up a facility at Clydeport's Hunterston site to test up to three prototypes for the next generation of offshore turbines.
BBC: SSE wants offshore wind turbine test site at Hunterston
Police are urging drivers to stay away from the area, with southbound traffic being diverted at Largs onto the A760 at Hayley Brae and northbound traffic being diverted at the Hunterston Roundabout.
It said the scheduled closure of Hunterston B and Torness means that Scotland would lose a significant volume of low-carbon power and called for the extension or ultimate replacement of Scotland's nuclear facilities.
Despite opposition to nuclear power, the document said the Scottish government will not use its powers to block an extension to operations at Torness in East Lothian, which is licensed to 2023, and Hunterston in Ayrshire, which is currently scheduled to close in 2016.
应用推荐