Simpson Thacher represented I Squared Capital (“ISQ”), a specialist global infrastructure investor, on its sale of Energia Group (“Energia”), one of the largest energy utilities on the island of Ireland to Ardian, a world-leading private investment firm. The transaction is expected to be completed in Q1 2026, subject to customary regulatory approvals.
Energia operates across the entire energy value chain in the Republic of Ireland and Northern Ireland, serving almost 900,000 homes and businesses. It is one of the longest established providers of renewable electricity in Ireland, supplying approximately 17% of the island of Ireland’s total electricity requirements and 20% of its total wind power. Energia has also entered into a strategic partnership with a global technology partner for the development of a 165MW data center in Dublin and its corresponding supply of renewable energy, solidifying its leadership in the energy transition. ISQ initially invested in Energia in 2016, and the sale represents the largest exit in ISQ’s history.
The Simpson Thacher team includes Amy Mahon, Kate Strachan, Bella Sullivan, Rhona Luithle and Cie Jen Wong (M&A); Carol Daniel, Claire Williams, Surya Bala, Daniel Deacon, Mark Collier, Charley Xu and Jennifer Falconer-Hall (Banking and Credit); Étienne Renaudeau and Lina Kim (Antitrust); and Sarah Lindley, Oliver Rosshandler and Sefia Jivraj (Tax).