The plant, housed in four shipping containers, is the type of project hailed by the business secretary, Greg Clark, as crucial to transforming the UK’s energy system and making it greener. Balancing supply and demand is essential for keeping the frequency of electricity constant at 50Hz across the UK. E.ON has secured £3.89m of the £65.9m of contracts awarded for the service, though National Grid estimates the batteries will save it £200m over four years. Leon Walker, the commercial development manager at National Grid, said: “Using battery storage is a significant development for managing the national grid. The storage plants will also be able to take power off the system when supply is unexpectedly high, such as on a particularly windy or sunny day.

Source: The Guardian October 09, 2017 11:12 UTC