Rocksavage Power Station

Rocksavage Power Station is a 800MWe gas-fired power station on Cow Hey Lane near Runcorn just off the A557, at the junction of the River Weaver and River Mersey, and near junction 12 of the M56.


It was opened by the Queen on July 31 1998, being owned by InterGen, a company that is now jointly owned by Ontario Teachers' Pension Plan and GMR Infrastructure. It cost £375m, being situated in the borough of Halton. The EPC contractor was Bechtel. The site trades as Rocksavage Power Company Ltd. It sponsors the Runcorn Jets baseball club, the Highfield Male Voice Choir, and the Weston Angling Club. The site has a visitor centre for schoolchildren. The name comes from the nearby ruined Elizabethan mansion, Rocksavage.


It is a CCGT-type power station that uses natural gas. It has two Alstom 260MWe GT26A gas turbines, with an Alstom heat recovery steam generator each that produces steam for one ABB 280MWe steam turbine. The plant runs at 58% thermal efficiency. 300MWe is used by the Ineos site (previously ICI) at Weston Point that makes hydrofluororcarbons (HFCs), and the other 400MWe is sold by Scottish and Southern Energy (formerly Scottish Hydro) for electricity supply.


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