On June 1, the new Unit 3 combined cycle gas plant was proven capable of generating and delivering 440 megawatts of electrical power to the GRDA transmission system.

CHOUTEAU– The Grand River Dam Authority welcomed the month of June by celebrating a very significant milestone at the Grand River Energy Center (GREC), east of Chouteau.

On June 1, the new GRDA Unit 3 combined cycle gas plant reached “sellable power completion.” In other words, on that date, the new unit was proven capable of generating and delivering 440 megawatts of electrical power to the GRDA transmission system.

According to GRDA Vice President of GREC Operations Robert Ladd, “a four-hour capability demonstration test was successfully conducted to satisfy Southwest Power Pool’s requirements and define the available power as the ‘Accredited Generating Capacity’ for our generation source.”

This is a major milestone and accomplishment for the GRDA team and its partners in construction of the facility, including Mitsubishi Hitachi Power Systems Americas (MHPSA), TIC/Kiewit and Black & Veatch.

“While this exciting accomplishment was a critical one, there is still work ahead of us,” added Ladd. “Our continued team efforts will undoubtedly ensure the final stretch of this project will be successful.”

This achievement is the latest in GRDA’s ongoing efforts to the complete the new 495 MW unit which is equipped with MHPSA’s first M501J model combustion turbine to be deployed in the Western Hemisphere. With the potential to be the most efficient combined cycle generator in the United States, GRDA’s Unit 3 will be fueled by Oklahoma natural gas.

After much research and discussion, GRDA decided to move forward with the Unit 3 construction in August 2014. With full support of its customer group, the Authority broke ground on the project in January 2015. The new unit is expected to supply abundant and reliable electricity to GRDA ratepayers for decades to come. Its addition will further expand an already diverse GRDA generation portfolio which already includes coal, gas, water and wind resources.

Headquartered in Vinita, GRDA is Oklahoma’s state-owned electric utility; fully funded by revenues from electric and water sales instead of taxes. Each day, GRDA strives to be an “Oklahoma agency of excellence” by focusing on the 5 E’s: electricity, economic development, environmental stewardship, employees and efficiency.