Moundsville Power LLC on Feb. 13 won a Siting Certificate from the West Virginia Public Service Commission to construct and operate a natural-gas fired wholesale electric generating facility of approximately 549 MW in Marshall County, W.Va.
In July 2014, Moundsville Power filed an application for a Siting Certificate for this natural-gas fired base load combined cycle wholesale generating facility, to be located about three miles south of Moundsville. The approval also covers an approxiinately 500-foot 138-kV (less than 200,000 volts) transmission line. Upon completion, the facility will be used to generate electricity for sale in the competitive wholesale market in West Virginia and other locations.
The plant will utilize state-of-the-art equipment consisting of two combustion turbines (CTs) that will drive two combustion turbine generators (CTGs). The CTGs will be connected to two heat recovery steam generators (HRSGs) that will use exhaust heat from the CTs to generate high-quality, superheated steam. The steam will drive a single steam turbine that will drive a steam turbine generator to generate electricity. The facility also will have cooling towers, a switchyard, a water treatment building, a maintenance building and other auxiliary structures.
Moundsville Power stated that additional generating capacity is needed in the PJM power market. In the Ohio River Valley, 3,870 MW of existing capacity is scheduled to close by 2015. Close to the proposed Moundsville Power plant, the 541-MW R.E. Burger coal plant in Shadyside, Ohio, has closed and the 713-MW Kammer coal plant outside of Moundsville will close.
The plant location is close to several natural gas production and processing facilities and transmission pipelines. The facility will receive blended fuel of 25 percent ethane and 75 percent natural gas. Large volumes of natural gas are being produced in the area near the Moundsville Power plant, but the natural gas is generally “wet” and must be processed before it can be used for various purposes. For instance, to obtain utility-grade natural gas to burn in household appliances, ethane is one of the elements that is removed from wet gas. Ethane burns hotter than natural gas and in most market settings is more valuable than natural gas. A lot of ethane from around the country is transported to Louisiana, where it is processed and sold. Because large volumes of natural gas (and ethane) are being produced near Moundsville and there currently is no available means to transport the ethane to market in Louisiana, the local price of ethane is depressed. If ethane becomes too expensive, the Moundsville Power facility can operate using only natural gas as fuel.
Moundsville Power stated that it has conducted multiple rounds of a competitive bid process to select a third party to design, permit, construct, own and operate a dedicated pipeline and fuel mixing station to serve the facility. The lowest bid received was a joint proposal from Vineyard Oil & Gas Company and East Resources Inc. The pipeline’s primary source for the delivery of natural gas will be from the Texas Eastern Transmission pipeline (Tetco) and the primary source of ethane will be from Blue Racer Midstream‘s Natrium natural gas processing plant (BRM). The pipeline will interconnect to Tetco and BRM about 5.5 miles south of the power facility with two 16-inch pipeline taps to Tetco, a meter and regulation station and a tap to a BRM pipeline with a meter and regulation station. A natural gas and ethane mixing station will be built close to the Tetco and BRM taps.
The power generated by the facility will be delivered to an existing American Electric Power (AEP) substation (Washington Substation). The 500-foot transmission line will begin at the northeast corner of the facility and cross West Virginia Route 2 to the Washington Substation.
Moundsville Power stated that General Electric (GE) will manufacture the generation equipment and provide preventative and on-call maintenance. Moundsville Power will enter into a contract with a qualified engineering, procurement and construction contractor to inanage construction and with a qualified operation and maintenance firm with experience operating a GE combustion turbine plant to operate, manage and maintain the facility.