MHI Receives Order for 800 MW GTCC Power Generation System
Mitsubishi Heavy Industries, Ltd. (MHI) has received an order for an 800 MW natural gas-fired gas turbine combined-cycle (GTCC) power generation system from ENMAX Green Power Inc., a subsidiary of ENMAX Corporation, a Canadian electricity provider. The GTCC power generation system is destined for the Shepard Energy Centre to be newly built near Calgary, Alberta, and slated to be online to serve the winter load of 2012. The highly efficient generation system will provide enough electricity for over half of Calgary’s robust electricity demand.
For the newly ordered 800 MW power generation system, MHI will provide two M501G1 gas turbines, two heat recovery steam generators (HRSG) and one steam turbine. Mitsubishi Electric Corporation will supply generators.
With GTCC type power generation, gas and steam turbines are used in combination to generate electricity in two stages, utilizing high-temperature exhaust gas from the gas turbine. This configuration enables GTCC power plants to achieve higher thermal efficiency than non-GTCC plants such as conventional boiler steam turbine plants. Higher efficiency means that GTCC plants reduce fuel consumption relative to electricity output and emit less CO2, thus making them friendlier to the environment.
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