Raccoon Mountain Pumped-Storage Plant
- Raccoon Mountain Pumped-Storage Plant
Raccoon Mountain Pumped-Storage Plant is a pumped-storage hydroelectric underground power station in Marion County, just west of Chattanooga in the U.S. state of Tennessee.
The facility is owned and operated by the Tennessee Valley Authority (TVA). Construction was started in 1970 and was completed in 1978.
Water is pumped from Nickajack Reservoir on the Tennessee River at the base of Raccoon Mountain to a storage reservoir built at the top of the mountain. The reservoir at the top of the mountain covers convert|528|acre|ha, with a dam that is convert|230|ft|m high and convert|5800|ft|m long, the largest rockfill dam ever built by TVA. It takes 28 hours to fill the upper reservoir. During periods of high electric demand, water can be released from the reservoir through a tunnel drilled through the center of the mountain, driving electric generators in the an underground hydroelectric plant. The plant has a capacity of 1600 megawatts of electricity and can generate for up to 22 hours.
External links
* [http://www.tva.gov/sites/raccoonmt.htm TVA: Raccoon Mountain Pumped-Storage Plant]
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