The Calpine Corporation operates a 455
MW combined cycle power plant with
cogeneration in Gaston, SC. It went
online in May 2004 providing power to the
local utility and steam to the nearby
GE 7FA gas-fired combustion turbine
455 MW (baseload)
609 MW (peaking)
Estimated Installation Cost:
The two General Electric gas-fired combustion turbines provide 171 MW each. The
heat is then recovered and run into a steam turbine. The heat from the turbine is then
exhausted and provides steam at 1 million lb/hr to the chemical plant. This supply of
steam allowed Voridan Eastman to shutdown their coal fired boilers.
In June 2008 the plant received the Energy Star CHP award for pollution reduction and
energy efficiency. At 54% operating efficiency, this plant is almost 10% more efficient
than other generators in the state.
Columbia Energy Center
455 MW Combustion Turbine Plant
• Two GE 7FA Gas Turbines (171.7
• Toshiba Steam Turbine
The facility now employs 25 full time
people to run the 455 MW plant.
• Turbine Heat Rate: 9,900 kJ/kWh
• Turbine Flow of 445 kg/s at 601ºC
Calpine operates a number of large
scale natural gas CHP power plants.
They often locate their plants near paper
plants, petroleum refineries or chemical
companies. Their need for process heat
makes it mutually beneficial for CHP
power plants to be located in close