Germany-based energy company RWE has made a final investment decision (FID) for a 350MW/700MWh battery energy storage system (BESS) in Wales.
It’s called Pembroke Battery Storage and is part of the wider Pembroke Net Zero Center project that combines renewable generation with green hydrogen production.
The project received a building permit in January 2025 and also won contracts in the The latest Capacity Market (CM) auction in the UK. Construction will start in 2026 and commissioning and commercial operation in the second half of 2028, “subject to an updated and timely grid connection,” RWE said. That probably refers to the continuous rescheduling of the grid connection queue.
The BESS, which RWE says is the largest in Britain, will be located on 5.1 hectares of land adjacent to the Pembroke Power Station and will include 212 battery containers and 106 power conversion systems (PCS). As part of the planning process, RWE has carried out a series of environmental and technical assessments to understand and mitigate the potential impacts of the development.
The Pembroke Net Zero Center project, which includes Pembroke Battery Storage, is part of RWE’s commitment to decarbonise current power station operations and invest in new technologies. To date, of RWE’s 3GW of generation in Wales, across 12 sites, around 1GW is renewable energy, the report said.
Almost a year ago, in December 2024, RWE was granted planning permission for the Pembroke Green Hydrogen plant with a 100 Mwe electrolyser to be located on land next to the Pembroke Power Station.
Part of this article appeared first here on our sister site, Energy storage news.
