Thermal Assets


Flexible thermal generation will play a critical role in the transition to a low carbon economy and decarbonised electricity system, providing the reliable capacity at scale in response to market changes and events

SSE has an ownership interest in five gas-fired power stations that participate in the GB electricity market and one in Ireland – all of which are among the most flexible on the GB and Irish electricity systems.  It also retains interest in multi-fuel generation and one remaining coal-fired power station.

Our thermal assets 

Medway CCGT Power Station, 735MW, wholly owned
Keadby CCGT Power Station, 755MW, wholly owned
Peterhead CCGT Power Station, 1,180MW, wholly owned
Seabank CCGT Power Station, 1,164MW, 50:50 joint venture with CK Infrastructure Holdings Ltd
Marchwood, 840MW, 50:50 joint venture with ESB International
Great Island CCGT Power Station, 464MW, wholly owned.  Participates in the Integrated Single Electricity Market in Ireland.
Fiddler’s Ferry coal fired power station, 1,995MW, wholly owned.
Ferrybridge MultiFuel 1, 68MW, 50:50 joint venture with Wheelabrator Technologies Inc

Future development

Keadby 2 CCGT Power Station (840MW)
SSE is investing £350m to bring the first-of-a-kind, high efficiency, gas-fired generation technology to the UK, in partnership with Siemens.
Construction is underway of the 840MW CCGT which is being built adjacent to its existing Keadby CCGT power station in Lincolnshire.  It’s expected to be completed by Q1 2022 and SSE intends to participate in future capacity market auctions to secure an agreement for Keadby 2.

Ferrybridge Multifuel 2 (69MW – SSE share 50%)
Construction is underway of a second multifuel power station at Ferrybridge and is on track for completion in 2019. 

Slough Multifuel (up to 50MW)
SSE is carrying out site preparation work for a potential new multifuel plant at its site at Slough.

Ferrybridge D (circa 2,200MW)
SSE continues to develop a CCGT project at Ferrybridge D with the view to progressing should market conditions warrant further investment in high efficiency gas-fired generation during the transition to a low carbon electricity system.

You can visit our interactive map for more information on our projects and assets.