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Siemens Energy To Supply Turbine Packages To Mississippi Power

Posted on August 24, 2010

Siemens Energy received a contract from Mississippi Power Co., a subsidiary of Southern Co., to supply two SGT6-PAC 5000F gas turbine packages that will be installed in a coal-fired integrated gasification combined-cycle (IGCC) power plant using Southern Co.’s proprietary TRIG gasification technology.

About 65% of carbon dioxide (CO2) emissions from the 582 MW Kemper County power plant, located in Liberty, Mississippi, U.S.A., are expected to be captured, which is a reduction of 3 million tons of CO2 per year. The plant is expected to go into operation in mid 2014.

Siemens’ scope of supply comprises two gas turbine packages, each with a rated capacity of 232 MW, an air-cooled generator and Siemens’ SPPA-T3000 power plant control system.

IGCC power plants are combined-cycle power plants with an upstream gasifier that transforms coal into a synthetic gas consisting mainly of carbon monoxide (CO) and hydrogen (H2). The CO is converted to CO2, which is then separated, leaving a hydrogenous gas used to fire a gas turbine. The waste heat from the gas turbine is then used to generate steam to drive a downstream steam turbine, producing additional power.

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