Battery@Ray is a 20 MW / 45.5 MWh Battery Energy Storage System (BESS) co-located at Ray Wind Farm.  

Situated next to Vattenfall's 16 turbine Ray Wind Farm near Kirkwhelpington in NE England. The wind farm has been operating for over 6 years and produces around 10% of Northumberland’s energy needs.  


Battery@Ray will help to keep the electricity grid stable by contributing to matching electricity supply with demand.

At times of peak wind power production, where supply may not match the demand, excess electricity can be stored and then released from the BESS back into the grid when customers need the power most. 

Co-locating the battery at Ray Wind Farm also enables the production of electricity to be more cost effective by sharing infrastructure, such as the roads around the site and the electricity grid connection.