Seagreen Wind Energy Limited (SWEL), a joint venture owned by SSE Renewables (49%), TotalEnergies (25.5%) and PTTEP (25.5%), has announced that it has signed an agreement to sell the Offshore Transmission Assets of the Seagreen Phase 1 Offshore Wind Farm, Scotland’s largest and the world’s deepest fixed bottom offshore windfarm, to Seagreen Phase 1 OFTO, a consortium of Equitix and Kyuden Group.
The sale relates to subsea and onshore export cables and offshore and onshore substations. Equitix and Kyuden Group will own, operate and maintain this critical infrastructure asset for a 24-year period under the terms of a transmission license granted by Ofgem, Great Britain’s energy regulator. The sale agreement is a requirement of the offshore transmission regime and follows the completion of a competitive Offshore Transmission Tender process conducted by Ofgem.
The Seagreen Phase 1 offshore wind farm is 27km from the Angus coast. The transmission assets will transmit power from the offshore wind farm via three export cables (each approximately 64 km long) to landfall and a further 20 km inland to the onshore substation in Angus.
Seagreen became fully operational in October 2023. The 1,075MW project has the capacity to generate enough renewable electricity to power almost 1.6 million homes annually, equivalent to two-thirds of all Scottish homes*. Seagreen also has the capability to displace over 2 million tonnes of carbon dioxide from electricity generated by fossil fuels every year – making a significant contribution to Scotland’s net-zero ambition by 2045*.
The project was one of the largest construction projects ever undertaken in Scotland. Delivery of the project supported a £1bn-plus economic boost to the Scottish economy during construction, supporting around 4,000 Scottish jobs, according to independent analysis published by PwC.