The acquisition is part of the company’s plan to build a large and distributed portfolio of grid-scale flexible storage assets across Great Britain. The project is located on land south of the Pyworthy substation in Devon. It is Eelpower Energy’s fourth asset acquisition since the formation of the company in September 2025.
Eelpower Energy plans to invest £500 million in flexible BESS assets in Great Britain, supporting the UK’s energy transition and the UK’s Clean Power 2030 goals by enabling a more flexible, resilient, and decarbonised electricity system. The company is aiming to build, own and operate over 1GW of grid-scale battery assets in the coming years with a view to becoming a leading owner-operator of flexibility on the GB electricity system.
“Stoneworthy is an important acquisition for Eelpower Energy and a strong addition to our growing battery storage portfolio” said Mark Simon, Chief Executive of Eelpower Energy. “It demonstrates our ability to originate and execute attractive opportunities with high-quality counterparties such as RES, while underlining the commitment of Equitix, Aware Super and the National Wealth Fund to investing in the infrastructure needed for a cleaner, more flexible and more resilient electricity system in Great Britain.”
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