- Bath County Pumped Storage Station
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- Bath County, Virginia
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- Bath County Pumped Storage Station - Wikipedia
- Bath County Pumped Storage Station | Dominion Energy
- Pumped Storage in Bath County - Virginia Places
- Bath County, USA - Voith
- Pump Storage Station and Dominion Back Creek Recreational Area
- Bath County Station 2/2/22 - Dominion Energy
- Bath County Pumped Storage Station, Virginia - clui.org
- Bath County Pumped Storage Station | Schnabel Engineering
- Generating Electricity By "Pumped Storage" in Virginia
- The Bath County Pumped Storage Station is the largest battery in …
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The Bath County Pumped Storage Station is a pumped storage hydroelectric power plant with a maximum generation capacity of 3,003 MW, an average of 2,772 MW, and a total storage capacity of 24,000 MWh. The station is located in the northern corner of Bath County, Virginia, on the southeast side of the Eastern Continental Divide, which forms this section of the border between Virginia and West Virginia. The station consists of two reservoirs separated by about 1,260 feet (380 m) in elevation. It was the largest pumped-storage power station in the world until 2021, when it was surpassed by the Fengning Pumped Storage Power Station.
Construction on the power station, with an original capacity of 2,100 megawatts (2,800,000 hp), began in March 1977 and was completed in December 1985 at a cost of $1.6 billion, Voith-Siemens upgraded the six turbines between 2004 and 2009, increasing power generation to 500.5 MW and pumping power to 480 megawatts (640,000 hp) for each turbine. Bath County Station is jointly owned by Dominion Generation (60%) and FirstEnergy (40%), and managed by Dominion. It stores energy for PJM Interconnection, a regional transmission organization in 13 states and the District of Columbia.
Design
The upper and lower reservoirs are created by earth and rock-filled embankment dams. The upper reservoir dam is 460 feet (140 m) high, 2,200 feet (670 m) long and has a structural volume of 18,000,000 cubic yards (14,000,000 m3). The upper reservoir on Little Back Creek has a surface area of 265 acres (107 ha) and storage capacity of 35,599 acre-feet (43,911,000 m3). The lower reservoir dam on Back Creek is 135 feet (41 m) high and 2,400 feet (730 m) in length. It has a structural volume of 4,000,000 cubic yards (3,100,000 m3) and creates a reservoir with a surface area of 555 acres (225 ha) and storage capacity of 27,927 acre-feet (34,447,000 m3). Connecting the upper reservoir to the power station are three water conduits between 3,100–3,600 feet (940–1,100 m) long. The conduits each lead to a 990 feet (300 m) shaft which bifurcates into two penstocks (for a total of six) before reaching the turbines. Each penstock is 18 feet (5.5 m) in diameter and between 900–1,260 feet (270–380 m) in length. Maximum static pressure from the top of the water delivery system to the turbines is 1,320 feet (400 m).
Method of operation
Water is released from the upper reservoir during periods of high demand and is used to generate electricity. What makes this different from other hydroelectric dams is that during times of low demand, power is taken from coal, nuclear, and other power plants and is used to pump water from the lower to the upper reservoir. Although this plant uses more power than it generates, it allows these other plants to operate at close to peak efficiency for an overall cost savings. Back Creek and Little Back Creek, the water sources used to create the reservoirs, have a relatively small flow rate. However, since water is pumped between the reservoirs equally, the only water taken from these creeks now that the reservoirs are full is to replace the water lost to evaporation. During operation, the water level fluctuates by over 105 feet (30 m) in the upper reservoir and 60 feet (20 m) feet in the lower reservoir.
When generating power, the water flow can be as much as 13.5 million US gallons (51,000 m3) per minute (850 m3/s). When storing power, the flow can be as much as 12.7 million US gallons (48,000 m3) per minute (800 m3/s).
Reservoirs
Environment
A fishing habitat was created downstream of the facility.
In times of drought water quality can be maintained by using nearby recreational reservoirs to supply extra water to the creeks. The creeks and recreational reservoirs have water quality sufficient for fish.
See also
List of energy storage projects
Pumped-storage hydroelectricity
List of largest hydroelectric power stations in the United States
References
External links
Dominion Resources
FirstEnergy
Bath County Pumped Storage Station Home Page
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bath county pumped storage station
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Bath County Pumped Storage Station - Wikipedia
The Bath County Pumped Storage Station is a pumped storage hydroelectric power plant with a maximum generation capacity of 3,003 MW, [3] an average of 2,772 MW, [4] and a total storage capacity of 24,000 MWh. [4]
Bath County Pumped Storage Station | Dominion Energy
Cradled in Virginia's rugged Allegheny Mountains, the world's most powerful pumped storage generating station quietly balances the electricity needs of millions of homes and businesses across six states. Cited as one of the nation's most outstanding 1985 engineering achievements.
Pumped Storage in Bath County - Virginia Places
The Bath County Pumped Storage Station uses more electricity than it generates; it is a net consumer, rather than producer of power. Pumping water uphill requires more electricity than the six turbines can generate.
Bath County, USA - Voith
With a total capacity of more than 3030 megawatts, Bath County is once more the most powerful pumped storage power station in the world following the modernization.
Pump Storage Station and Dominion Back Creek Recreational Area
Because the extreme fluctuations of the water levels at the Bath County Pumped Storage area make them unsuitable for recreation, Dominion Power created a separate 325 acre public recreation spot. The area contains two lakes open on a …
Bath County Station 2/2/22 - Dominion Energy
As of 2021, Bath County was the largest pump storage hydroelectric station on earth. Bath County's total output capability is over 3000 megawatts. And to put that into perspective, that's enough energy to supply over 750,000 homes.
Bath County Pumped Storage Station, Virginia - clui.org
The Bath County Pumped Storage Station in the Allegheny Mountains, on the state line between Virginia and West Virginia, is the largest of a few dozen pumped storage hydroelectric facilities in the country, by far.
Bath County Pumped Storage Station | Schnabel Engineering
Bath County Pumped Storage Station is the world’s most powerful pumped hydro facility, quietly balancing the electricity needs of millions of homes and businesses. Once described as the “world’s largest battery,” its maximum generation capacity is 3,003 megawatts and its total storage capacity is 24,000 megawatt-hours.
Generating Electricity By "Pumped Storage" in Virginia
Appalachian Power built its Smith Mountain Lake facility in the early 1960's. Two decades later, the Virginia Electric and Power Company (now Dominion Energy) built the Bath County Pumped Storage Station. It is the largest pumped storage project in the world.
The Bath County Pumped Storage Station is the largest battery in …
Jan 27, 2021 · Some of the country's biggest energy companies are trying to figure out how to store the power. They're buying giant lithium batteries, and imagining ways to tap the batteries in electric cars. But...