Renewables.digital currently lists 3 Battery Storage (BESS) transactions in Ireland between February 2026 and August 2026, with a combined capacity of 943 MW. Companies involved include Capital Dynamics (1), Copenhagen Infrastructure Partners (1), Gore Street Capital (1), Gore Street Investment Management (1) and Ørsted (1). Development status: Ready-to-Build (2) and Operational (1). The most recent deal is “GS EU Fund Acquires 195 MW / 390 MWh Kilmannock and Mucklagh BESS Projects in Republic of Ireland” (24 August 2026).
3Transactions
943 MWTotal capacity
3Technologies
February 2026 – August 2026Period
All Battery Storage (BESS) transactions in Ireland
Gore Street Capital's GS EU Fund has completed the acquisition of two ready-to-build BESS projects in the Republic of Ireland from Gore Street Energy Storage Fund: Kilmannock (120 MW / 240 MWh) and Mucklagh (75 MW / 150 MWh), totalling 195 MW / 390 MWh. Both projects have secured grid connections and planning permissions, with CODs expected in Q1–Q2 2028. The acquisitions mark the first deployment of the Ireland Strategic Investment Fund's commitment into the Irish grid.
Capital Dynamics has acquired a 170 MW / 4-hour long duration energy storage (LDES) BESS project in Knockanure, County Kerry, Republic of Ireland from a group of private shareholders. With planning consent secured in October 2025 and grid connection at the Knockanure 110 kV substation, the project marks Capital Dynamics' first investment in the Republic of Ireland.
3 February 2026 · 578 MW · Ireland, United Kingdom, Germany, Spain
Ørsted has signed an agreement with Copenhagen Infrastructure Partners to divest its entire European onshore renewables business for EUR 1.44 billion. The transaction covers onshore wind, solar PV and battery storage assets across Ireland, the UK, Germany and Spain, with closing expected in Q2 2026.
Data as of 30 September 2026. The overview covers the transactions currently listed in the Renewables.digital database; each deal links to its original public source.
