Trina Storage, the BESS arm of Trinasolar, has made a commitment to invest in Gore Street Capital’s new EU-focused private BESS fund.
The companies announced the partnership while at the Energy Storage Summit 2026 in London this week, a month after the GS EU Fund SCSp and its cornerstone investors were first announced by Gore Street.
Trina Storage will bring its system expertise, execution capability and long-term technical delivery, it said in its announcement.
The announcement also revealed that the venture is targeting a total size of €1 billion (US$1.18 billion) including primary commitments and co-investments by the end of 2026. In terms of activity, it is targeting long-term battery energy storage system (BESS) deployments of 12GWh across the continent.
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The fund’s first project signatures are expected mid-year, with initial project deliveries targeted for Q4 2026, Trina said.
Speaking to Energy-Storage.news at the event, Gore Street Capital’s director of asset management Daniel Sherlock‑Burke gave more details on the rationale and plans for the fund:
“It’s a private fund, so it attracts different kinds of capital to a public fund. The fund will focus on the EU and already has advanced pipeline in the Republic of Ireland and Poland, which we expect to execute against in the near term. Initial target markets for the fund will be Germany, Ireland, Poland, Iberia and Italy is also interesting.”
“We’re really excited about the Trina engagement and their involvement as an equity partner.”
Gore Street Capital is a fund manager and adviser mainly known for the UK-focused Gore Street Energy Storage Fund (GSF). GSF has invested primarily in GB and Ireland with a handful of smaller assets in Germany and Texas, plus a 200MW/400MWh system in California.
However, publicly-listed BESS funds in the UK have struggled to maintain share prices amidst significant revenue volatility. Another, the Harmony Energy Income Trust (HEIT), was sold and de-listed in 2025 (to asset manager Foresight), and its adviser Harmony Energy subsequently set up a private, European-focused BESS fund. Harmony CEO Peter Kavanagh spoke with us about that whole process recently.
