A 25-megawatt battery-based energy storage system has been connected to the electricity grid to store surplus power from wind and solar plants.

Located in a field near Taunton, it works by buying and storing electricity when it is cheap and then selling it at peak demand for a profit.

It also helps the National Grid balance the demand on the supply network.

Full article: https://www.bbc.co.uk/news/uk-england-somerset-53265102