Northeast Oklahoma’s Grand River Dam Authority (GRDA) has selected Black & Veatch to provide "EPC related" services for a 495-MW combined cycle unit near Chouteau, Oklahoma.
The project will feature a 328-MW gas turbine known as the 501J and a 167-MW steam turbine from Mitsubishi Hitachi Power Systems. It will be the first J-series gas turbine installed in the Western Hemisphere. The unit will replace an old coal-fired unit at the Grand River Energy Center.
Black & Veatch will provide permitting, engineering, construction and procurement related services for the project. The new gas-fired unit will be built next to two coal-fired units. The project, which includes a new substation, is expected to be completed in 2017.
“Black & Veatch was selected following a vigorous evaluation process in which it was determined they could best meet our objectives,” said GRDA CEO Dan Sullivan.
The 501J is known for its higher firing temperatures and improved efficiency. The J-series gas turbine is able to operate at a turbine inlet temperature of 1600OC (2912OF) by integrating the technologies used in the 1400OC F-series and 1500OC G and H-series turbines.
"This unit has the potential to be the most efficient combined cycle plant in the country," said Charles Barney, assistant general manager of thermal generation for GRDA.
In addition, Black & Veatch is providing engineering services for an emissions control project on one of GRDA’s coal-fired units. That project is expected to be completed in spring 2016. The retrofit will include the conversion of the existing electrostatic precipitator to a fabric filter, installation of an activated carbon injection system, an upgrade of induced draft fans, and balance-of-plant modifications. The company is also providing conceptual engineering and procurement services for the combustion turbine, steam turbine, heat recovery steam generator and step-up transformers.