TVA Board Votes to Retire Over 2,000 MW of Coal-fired Generation

LCG, February 14, 2019--The Tennessee Valley Authority (TVA) Board voted today to retire both the Paradise Unit 3 and Bull Run coal-fired power plants within the next few years. The closures will reduce the TVA fleet electric generating capacity by 2,031 MW.

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MHPS to Supply Three J Class Turbines for Power Project in Virginia

LCG, February 8, 2019--Balico, LLC and Gemma Power Systems selected Mitsubishi Hitachi Power Systems Americas (MHPS) and its J Class turbines for the 1,600-MW Chickahominy Power Station project in Virginia. The combined cycle power plant will deliver power into the PJM regional transmission grid and is scheduled for completion in 2022.

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Industry News

Recovered Energy Generation Projects On-line in North Dakota

LCG, February 13, 2009--Ormat Technologies yesterday announced that two, 5.5 MW recovered energy generation projects recently achieved commercial operations at two compressor stations in North Dakota along the Northern Border Pipeline. Two more projects are scheduled to commence operations by year-end.

The compressor stations are driven by natural gas-fired turbines, and the Ormat heat recovery systems use heat exchangers to extract the energy from the gas turbine exhausts, which are at a temperature of 800-900 degrees F. The energy is used to vaporize a working fluid to drive a turbine in an Organic Rankine Cycle system designed by Ormat Technologies, rather than a traditional steam system using water as the working fluid.

The use of another working fluid not only enables the relatively low temperature exhausts to support the power generation system, but it eliminates the need for water. The design has zero or near zero emissions, and its fuel is the waste heat from the compressor station.

The electricity generated from the projects is under power purchase agreements with Basin Electric Power Cooperative (BEPC) of Bismarck, North Dakota.

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