To use that excess electricity (obviously, only excess whenthewindisblowing just right, or the Sun shining) to electrolyse water by passing it through a fuel cell and then store the resultant hydrogen.
It is also an "enabler" for renewable energy, providing a source of electricity that can step in to fill the gap whenthewindis not blowing or the sun is not shining.
Key decisions on how to ensure there are enough gas power stations to keep the lights on whenthewindis not blowing will be announced alongside the chancellor's Autumn Statement.
Those objectives may only be possible if energy storage is eventually commercialized, or the ability to bottle and release thewindwhen it is not blowing.