Yes, but they never seem to turn the gas off. You can see it at
https://www.energydashboard.co.uk/live
During storms it looks like the wind and others can cover everything but they don't turn gas off! Maybe it's because they can't transport the power around the country properly.
Octopus energy are campaigning to change regulation to allow regional pricing. This would mean places with lots of wind energy like Scotland would be able to use it to the fullest and get very cheap power.