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SSE Renewables secures capacity agreements in 2025/26 GB T-1 auction 

07 Mar 2025

The provisional results of the latest T-1 capacity auction in Great Britain were published on Tuesday 4 March, with a total of 7,936MW in capacity agreements awarded to capacity market units at an auction clearing price of £20/kW.

SSE Renewables secured provisional agreements for around 63MW of de-rated* capacity including two units at its joint venture Seagreen Offshore Wind Farm for the 2025/26 delivery year, which runs from 1 October to 30 September. SSE will have a 49% share of earnings based on its equity stake in the asset^.

The provisional results are subject to confirmation by the Secretary of State for Energy Security and Net Zero (DESNZ).    

For more, read here.

*A de-rating factor is applied to all capacity according to rules set by the UK Government.  

^Seagreen Offshore Wind Farm is a joint venture between SSE Renewables (49%), TotalEnergies (25.5%) and PTTEP (25.5%).