SSE Renewables hydro and wind units win contracts in T-4 capacity auction

SSE Renewables confirms that hydroelectric and pumped storage units, as well as an onshore wind farm, in Scotland have provisionally secured contracts in the latest T-4 capacity auction in Great Britain.

SSE Renewables has secured provisional contracts for just over 890 MW of pumped storage and hydro capacity for the delivery year 2024/25, as well as a 15-year contract for 3 MW at its Gordonbush Extension onshore wind project, under construction in the Scottish Highlands. (A de-rating factor is applied to all capacity according to rules set by the UK Government.)

The provisional results of the latest T-4 capacity auction in Great Britain were published March 10, with a total of 40.8 GW in capacity contracts awarded to electricity generators at an auction clearing price of £18/kW (US$25/kW).

The following hydroelectric and pumped storage units secured agreements for de-rated capacity:

  • Clachan – one unit for 37.621 MW
  • Clunie – one unit for 55.686 MW
  • Deanie – two units for a total of 34.617 MW
  • Errochty – three units for a total of 68.685 MW
  • Fasnakyle – three units for a total of 60.641 MW
  • Foyers – two units for a total of 283.920 MW
  • Glenmoriston – one unit for 36.132 MW
  • Inverawe – one unit for 24.567 MW
  • Lochay – two units for a total of 42.709 MW
  • Luichart – one unit for 30.937 MW
  • Rannoch – three units for a total of 42.364 MW
  • Sloy – four units for a total of 139.612 MW
  • Tummel – two units for a total of 32.257 MW

The hydroelectric and pumped storage capacity contracts awarded for the 2024/25 delivery year run from Oct. 1, 2024, to Sept. 30, 2025.

The Gordonbush Extension wind farm development, about 9.5 km west of Brora in Scotland, secured 2.968 MW of provisional capacity for 15 years. The wind farm will consist of 11 Siemens Gamesa wind turbines with a capacity of up to 38 MW and is scheduled to be operational in mid-2021. The development is the first to be built by SSE Renewables on a merchant basis, which means no subsidies were used to assist with its funding.

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Elizabeth Ingram is content director for the Hydro Review website and HYDROVISION International. She has more than 17 years of experience with the hydroelectric power industry. Follow her on Twitter @ElizabethIngra4 .

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