The first battery storage facility in the UK to be co-located at a wind farm site has moved from single contract operation to providing a portfolio of services, according to Arenko, which is now optimising the battery.
The 22MW/16 MWh battery at the 228MW Pen y Cymoedd Wind Farm in South Wales, which is owned by Vattenfall benefits from using the existing wind farm grid export connection. It was one of eight projects selected by National Grid to provide Enhanced Frequency Response under a contract that finished in February 2022
Arenko said it is the first company to optimise a storage asset co-located with a wind farm in the UK. It has repurposed the asset to be optimised into wholesale, day-ahead and intraday markets.

Jake Dunn, commercial manager at Vattenfall, said: “At Vattenfall, our goal is to enable fossil fuel free living within one generation. We are determined to help this energy transition not just through renewable generation but also supporting grid stability through co located battery storage projects. Now the EFR contract has come to an end, the battery will move to a more diverse range of ancillary services and we are grateful to be assisted in this by the market leading expertise of Arenko.”