The power generation system is destined for the Shepard Energy Centre to be newly built near Calgary city in Alberta. It is due to come 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.
ENMAX Corp, an electricity generation firm, is a wholly owned subsidiary of The City of Calgary.
MHI said it received the order through MPS Canada Inc, the Ontario-based subsidiary of Mitsubishi Power Systems Americas Inc (MPSA), a wholly owned US subsidiary of MHI. The company handles MPSA’s power generation equipment business in Canada.
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 Corp 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.