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1713.6 MW Hydro operating in Hamilton, TN
1,713.6 MW
Nameplate Capacity
4
Generators
units
Hydroelectric Pumped Storage
Technology
1978
Operating Since
Coordinates
35.0565, -85.4065
County
Hamilton, TN
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Tennessee Valley Authority | Tennessee Valley Authority | — |
| Owner(s) | Tennessee Valley Authority | Tennessee Valley Authority | — |
| Status | Operating | operating | — |
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. Owned and operated by the Tennessee Valley Authority (TVA), the plant can generate a maximum of 1,652 megawatts of electricity. The reservoir at the top of the mountain covers 528 acres (214 ha), with a dam that is 230 feet (70 m) high and 5,800 feet (1,800 m) long, the largest rock-fill dam ever built by TVA. With a hydraulic head of roughly 1000 feet high, the dam can apply a maximum force of approximately 450 pounds per square inch of water pressure to the Turbine. The plant serves as an important element for peak power generation and grid balancing in the TVA system.
Read more on WikipediaRaccoon Mountain is a 1,713.6 MW hydroelectric pumped storage plant located in Hamilton County, Tennessee. It began operating in 1978 and is owned and operated by the Tennessee Valley Authority (TVA). The plant utilizes water as its primary fuel source and consists of four generators. Raccoon Mountain is the largest of 13 hydroelectric plants in Tennessee, and ranks as the 8th largest of 194 pumped storage plants nationally.
The plant operates within the Tennessee Valley Authority balancing authority area and the SERC NERC region. Raccoon Mountain is a significant asset for TVA, providing grid support and energy storage capabilities.
Generated from EIA, GEM, and public data sources
Grid Region
Southeast
Market
SEEM Participant
NERC Region
SERC — SERC Reliability Corporation
Balancing Authority
Tennessee Valley Authority (TVA)
Grid Voltage
161.0 kV
Regulatory Status
RE — Regulated
Entity Type
Federal
Sector
Electric Utility
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
−26.9K MWh
Net Charging
-537.5K MWh
Annual Net Energy
-3.6%
Capacity Factor
Positive values indicate net discharge (generation exceeds station load). Negative values indicate net charging. Pure battery storage plants are typically net negative due to round-trip efficiency losses.
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2013
$2,294/kW
Est. Construction Cost
Total estimated cost: $3.9B
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This plant's balancing authority participates in the Southeast Energy Exchange Market (SEEM). SEEM is a bilateral exchange — no public nodal pricing.
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
Last updated 2026-03-26
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