Apalachia
Hydro power plant in Polk County, Tennessee. 93.6 MW of nameplate capacity across 2 generators, operated by Tennessee Valley Authority.
Also known as Apalachia Powerhouse · EIA plant 3394
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 93.6 MWNameplate
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- September 1943First generator online
- Operator
- Tennessee Valley AuthorityEIA operator ID 18642
- Grid
- TVABalancing authority TVA
- Price nodes
- None linkedNo verified ISO node
- Location
- Polk County, TN35.1677, −84.2956
- EIA plant ID
- 3394EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Apalachia produces
Free · EIA-923Net generation, 2025
389 GWh
389,144 MWh, final
Capacity factor, 2025
47.5%
2024: 48.9%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
177.9–715.3
GWh a year. Low 2016, high 2020
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 278,000 | Not reported | 12 of 12 |
| 2001 | 295,767 | Not reported | 12 of 12 |
| 2002 | 383,051 | Not reported | 12 of 12 |
| 2003 | 575,006 | Not reported | 12 of 12 |
| 2004 | 381,369 | Not reported | 12 of 12 |
| 2005 | 482,057 | Not reported | 12 of 12 |
| 2006 | 336,744 | Not reported | 12 of 12 |
| 2007 | 217,877 | Not reported | 12 of 12 |
| 2008 | 204,629 | Not reported | 12 of 12 |
| 2009 | 429,700 | Not reported | 12 of 12 |
| 2010 | 398,680 | 48.6% | 12 of 12 |
| 2011 | 302,380 | 36.9% | 12 of 12 |
| 2012 | 326,144 | 39.7% | 12 of 12 |
| 2013 | 551,170 | 67.2% | 12 of 12 |
| 2014 | 415,735 | 50.7% | 12 of 12 |
| 2015 | 310,461 | 37.9% | 12 of 12 |
| 2016 | 177,870 | 21.6% | 12 of 12 |
| 2017 | 310,805 | 37.9% | 12 of 12 |
| 2018 | 457,704 | 55.8% | 12 of 12 |
| 2019 | 493,037 | 60.1% | 12 of 12 |
| 2020 | 715,344 | 87.0% | 12 of 12 |
| 2021 | 596,849 | 72.8% | 12 of 12 |
| 2022 | 426,172 | 52.0% | 12 of 12 |
| 2023 | 435,935 | 53.2% | 12 of 12 |
| 2024 | 402,053 | 48.9% | 12 of 12 |
| 2025 | 389,144 | 47.5% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 1 | Conventional Hydroelectric | 52.2 | November 1943 |
| 2 | Conventional Hydroelectric | 41.4 | September 1943 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Tennessee Valley Authority as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
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Power plants near Apalachia
More plants operated by Tennessee Valley Authority
Questions about Apalachia
How much power does Apalachia produce?
Apalachia reported 389,144 MWh (389 GWh) of net generation in 2025, a 47.5% capacity factor on 93.6 MW of nameplate capacity.
Where is Apalachia?
Apalachia is in Polk County, Tennessee, at 35.1677, −84.2956. It is in the Tennessee Valley Authority balancing area (TVA).
Who operates Apalachia?
EIA-860M for August 2026 lists Tennessee Valley Authority as the operator (EIA operator ID 18642). The operator is not always the owner.
When did Apalachia start operating?
Its first generator began operating in September 1943, according to EIA-860M.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page