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Refurbishment and reinforcement works to transmission framework secures electricity supply and improves tower safety for Northern Ireland

Staythorpe

Situation

Staythorpe Power Station, located in Nottinghamshire comprised two coal-fired power stations. Construction of a new gas-fired power station commenced in the late nineties, but was put on hold because at the time, there was already sufficient generating capacity in the UK.

Requirement

Power station owners, RWE wished to rejuvenate the project and transform Staythorpe, which generates enough electricity to power 2.8 million homes, into an efficient and environmentally friendly plant.

Solution

The 1,650MW CCGT (Combined Cycle Gas Turbine) power plant was installed with four combined cycle units, each around 400MW with individual advanced class GT26 gas turbines with high operational flexibility and lowest in class emissions.

In addition the plant also benefited from:

one compact state-of-the-art reheat steam turbine

a high efficiency hydrogen cooled TOPGAS generator

one triple pressure reheat recovery steam generator

SPIE was responsible for the electrical and instrumentation services installation at the plant which included the erection of the main station transformers, auxiliary transformers, bus duct system, main circuit breakers, switchboards, control panels cable support systems and cabling including the 400kV cables to the main switching yard which is located at the other side of the main east coast railway line.

Results

State-of-the-art equipment has reduced average annual CO2 emissions by up to 7.5 million tonnes compared to an existing coal-fired power station producing the same amount of electricity

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