Renewables.digital currently lists 2 Offshore Wind transactions in United Kingdom between April 2026 and August 2026, with a combined capacity of 1,500 MW. Companies involved include EDF Power Solutions, Ireland and Electricity Supply Board (1), Fred. Olsen Seawind (1), Sumitomo Corporation (1) and Vattenfall (1). Development status: Under Development (2). The most recent deal is “Sumitomo Corporation Acquires 33.3% Stake in 1.5 GW Gwynt Glas Floating Offshore Wind Farm in UK Celtic Sea” (10 August 2026).
| Date | Transaction | Technology | Capacity | Country | Buyer | Seller |
|---|---|---|---|---|---|---|
| Sumitomo Corporation Acquires 33.3% Stake in 1.5 GW Gwynt Glas Floating Offshore Wind Farm in UK Celtic Sea | Offshore Wind | 1,500 MW | United Kingdom | Sumitomo Corporation | EDF Power Solutions, Ireland and Electricity Supply Board | |
| Fred. Olsen Seawind Acquires Vattenfall's 50% Stake in Muir Mhòr Floating Offshore Wind Project off Aberdeenshire | Offshore Wind | – | United Kingdom | Fred. Olsen Seawind | Vattenfall |
Sumitomo Corporation has acquired a 33.3% equity interest in the Gwynt Glas floating offshore wind farm being developed by EDF Power Solutions and ESB in the UK Celtic Sea. The project has a planned capacity of up to 1.5 GW located approximately 40 km offshore, marking Sumitomo's first investment in a floating offshore wind project.
Fred. Olsen Seawind has agreed to acquire Vattenfall's 50% stake in the Muir Mhòr floating offshore wind project, located approximately 63 km off the Aberdeenshire coast in Scotland. One of the world's first commercial-scale floating offshore wind projects, Muir Mhòr was awarded ScotWind seabed rights in 2022 and is targeting power generation in the early 2030s. The transaction is subject to regulatory approvals.
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.