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Foresight Energy Infrastructure Partners II and Blackmead Infrastructure have jointly acquired Harmony Energy Income Trust, taking the company private.
The acquisition includes eight grid-connected battery assets across the UK, totaling 400MW/800MWh, establishing the nation's largest operational two-hour battery portfolio.
Foresight holds a 49% stake, with its portfolio company Blackmead Infrastructure securing the remaining 51% of the newly acquired assets.
This strategic investment supports Foresight's ambition to build a pan-European battery storage platform and enhance grid stability in a leading European market.
Foresight Energy Infrastructure Partners II, in collaboration with its portfolio company Blackmead Infrastructure, has successfully completed the acquisition of 100% of Harmony Energy Income Trust, taking the company private. The transaction, finalized on July 9, 2025, secures ownership of the United Kingdom’s largest operational two-hour battery energy storage portfolio, marking a significant development in the nation’s energy infrastructure.
The deal encompasses eight grid-connected battery assets strategically located across England and Scotland, boasting a combined capacity of 400MW/800MWh. Under the terms of the acquisition, Foresight holds a 49% stake, while Blackmead Infrastructure has acquired the remaining 51% of the portfolio. This strategic move aligns with Foresight’s broader objective to establish a robust, pan-European battery storage platform, leveraging the UK’s mature and dynamic energy storage market as a foundational base.
Richard Thompson, co-manager of Foresight Energy Infrastructure Partners, emphasized the strategic importance of the acquisition. “This acquisition represents a significant milestone for FEIP II and further underscores our commitment to accelerating the energy transition through high-quality, revenue-generating infrastructure,” Thompson stated. He further elaborated on the critical role of battery storage in modern energy systems, noting, “Battery storage is critical to enabling a renewables-led power system, and this portfolio offers immediate scale, strong economics, and proven performance.”
The newly acquired assets are poised to deliver substantial benefits to the UK grid. By providing rapid response capabilities, these battery systems will help displace fossil fuel generation during periods of peak electricity demand, thereby reducing carbon emissions and improving overall grid efficiency. Their two-hour duration is particularly valuable for balancing intermittent renewable energy sources like wind and solar, ensuring a more stable and reliable power supply.
Beyond the UK, Foresight is actively pursuing growth investments in nascent and developing battery markets across continental Europe. The firm has identified key regions, including Germany, Italy, Spain, and the Nordics, as prime targets for future expansion, aiming to replicate the success and operational scale achieved with the Harmony Energy portfolio.