Bath County Pumped Storage Station

Bath County Pumped Storage Station is a pumped-storage hydroelectricity facility located in Bath County, Virginia, United States, near the West Virginia border, and is operated by Dominion Energy, a major energy company in the United States. The facility is situated near the George Washington National Forest and the Monongahela National Forest, and is connected to the Piedmont region's electric grid through transmission lines owned by PJM Interconnection and Appalachian Power. The station's construction was supported by the United States Army Corps of Engineers and the Federal Energy Regulatory Commission.

Overview

The Bath County Pumped Storage Station is one of the largest pumped-storage hydroelectricity facilities in the world, with an installed capacity of over 3,000 megawatts (MW), making it a significant contributor to the Eastern Interconnect electric grid, which spans from the Atlantic Coast to the Great Plains, and is managed by North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC). The facility uses water from the Little Back Creek and the Back Creek to generate electricity, which is then transmitted to the PJM Interconnection grid, serving states such as Virginia, West Virginia, Maryland, and Pennsylvania. The station's operations are also connected to the New York Independent System Operator (NYISO) and the Midcontinent Independent System Operator (MISO) through high-voltage transmission lines.

History

The construction of the Bath County Pumped Storage Station began in the early 1970s, with the support of the United States Department of Energy and the Tennessee Valley Authority (TVA), and was completed in 1985, with an initial installed capacity of 2,100 MW, making it one of the largest hydroelectric power plants in the United States at the time, alongside the Grand Coulee Dam and the Hoover Dam. The facility was designed by Bechtel Group and built by a consortium of companies, including General Electric and Westinghouse Electric Corporation. The station's construction required the excavation of over 1 million cubic yards of rock and the construction of a 1,300-foot (400 m) tall dam across the Little Back Creek, which is a tributary of the James River and the Kanawha River.

Operations

The Bath County Pumped Storage Station operates by pumping water from the lower reservoir to the upper reservoir during off-peak hours, using electricity generated by other power plants, such as the Surry Nuclear Power Plant and the North Anna Nuclear Power Plant, which are owned by Dominion Energy and are connected to the PJM Interconnection grid. During peak hours, the water is released back to the lower reservoir, generating electricity through hydroelectric turbines, which are manufactured by companies such as Voith and Andritz. The facility can generate up to 3,000 MW of electricity, making it a significant contributor to the regional electric grid, which is managed by PJM Interconnection and the Federal Energy Regulatory Commission (FERC). The station's operations are also connected to the New York Independent System Operator (NYISO) and the Midcontinent Independent System Operator (MISO) through high-voltage transmission lines.

Technical Specifications

The Bath County Pumped Storage Station has an installed capacity of 3,003 MW, with six hydroelectric turbines and six pump-turbines, which are manufactured by companies such as General Electric and Siemens. The facility's upper reservoir has a capacity of 1.7 billion gallons of water, while the lower reservoir has a capacity of 1.2 billion gallons. The station's dam is 1,300 feet (400 m) tall and 2,500 feet (760 m) long, making it one of the largest dams in the United States, alongside the Grand Coulee Dam and the Hoover Dam. The facility's operations are controlled by a SCADA system provided by companies such as ABB Group and Schneider Electric.

Environmental Impact

The Bath County Pumped Storage Station has a significant environmental impact on the surrounding area, with the creation of the upper and lower reservoirs altering the local ecosystem and affecting the habitat of various species, such as the brook trout and the black bear. The facility's operations also result in the emission of greenhouse gases, such as carbon dioxide and methane, although the amount of emissions is significantly lower compared to fossil fuel-based power plants, such as the Mount Storm Power Station and the Harrison Power Station. The station's owner, Dominion Energy, has implemented various measures to mitigate the environmental impact, including the creation of wildlife habitats and the implementation of water quality monitoring programs, in accordance with regulations set by the United States Environmental Protection Agency (EPA) and the Virginia Department of Environmental Quality (DEQ). Category:Hydroelectric power plants in the United States