Trina Storage has confirmed it will invest in a new European Union-focused battery energy storage system (BESS) fund, joining established investors to drive large-scale energy storage deployment across EU member states. The announcement was made during the Energy Storage Summit 2026 held in London earlier this week.
The partnership sees Trina Storage team up with UK-based investment manager Gore Street Capital to launch a dedicated private investment fund aimed at expanding grid-scale battery storage infrastructure across the European Union. The EU BESS Fund is targeting more than 12 gigawatt-hours (GWh) of storage deployments across key markets such as Germany, Ireland, Poland, Italy and the Iberian region.
According to the companies, the fund will attract capital from institutional investors including the European Investment Fund and the Irish Strategic Investment Fund, with the overall fund size and co-investment expected to reach approximately €1 billion by the end of 2026. This level of investment underscores the growing focus on battery storage to support renewable integration and electricity grid stability throughout Europe.
Under the agreement, Trina Storage will not only commit financial capital but also contribute its technical expertise in system integration, project execution and delivery. The firm’s contributions are intended to help the fund accelerate rollout of BESS projects and ensure timely deployment across diverse European markets.
Officials from both organizations have indicated that first project agreements are expected by mid-2026, with initial project deliveries targeted for the fourth quarter of the year. This timeline reflects industry urgency to expand energy storage capacity in line with rising demand for renewable energy and grid flexibility solutions.
Industry analysts say the collaboration marks a significant milestone in Europe’s energy storage landscape, combining investment capital with operational and technical know-how to tackle the intermittency of renewable sources and support stronger, more resilient electrical grids across the 27 EU member states.
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