Coryton Power Station, located in Thurrock, Essex, is a 732 MW Combined Cycle Gas Turbine (CCGT) power station owned by InterGen and operated by Coryton Energy Ltd. Built between 2000 and 2002 by Bechtel at a cost of £470 million, it was commissioned in 2002 on the former site of the Coryton Refinery, which closed in 2012. InterGen itself is owned by Sev.en Global Investments.

The station operates on natural gas, supplied via a 7 km underground pipeline from the National Transmission System near Stanford-le-Hope. Its design features two ABB Alstom GT26 gas turbines, each driving a generator, with exhaust gases routed through heat recovery steam generators that feed a single steam turbine connected to a third generator, allowing efficient combined-cycle operation.

Electricity from the plant is transmitted through the 400 kV Coryton South substation, providing a key link into the UK’s National Grid. With its high efficiency and strategic location on the Thames Estuary, Coryton remains an important contributor to regional energy stability and the UK’s flexible gas-fired generation capacity.