Edison IPP in Italy, in partnership with Ansaldo Energia, will soon build a gas-fired 760MW combined cycle plant at an estimated cost of €370 million ($415 million) in Presenzano in the province of Caserta.
The 1×1 combined cycle configuration is designed around one advanced H-class GT36 gas turbine generator rated at around 505 MW, one unfired heat recovery steam generator and one 255 MW steam turbine generator.
At 59°F sea level ISO ambient conditions, with direct cooling and 3-pressure reheat cycle, the combined cycle plant is rated at 760,000kW net baseload output and 5477 Btu/kWh heat rate (62.3% net efficiency) on natural gas fuel.
Thanks to advanced combustion technology, high efficiency and “clean gas” fuel, project engineers say the new plant will produce 40% less specific CO2 emissions than the average coal fired power plant and 60% lower NOx emissiuons than earlier generation combined cycle plants of the same size.
Considering the plant’s efficiency, and backup requirements of the renewables energy market in which it will operate, the total investment of €370 million satisfies today’s economic criteria for new projects.
This project also recognizes that sustainable “clean” gas-fired combined cycle power generation has a key role to play in the world’s energy transition to a system which aims to go carbon-free.