South Holston
Sullivan County, Tennessee · EIA plant ID 3416 · Operator: Tennessee Valley Authority
Nameplate39MWSummer 44 MW
Generators1in service
Net generation122GWh12 mo to Dec 2025
Capacity factor31%hydro units, summer MW
Heat rate—thermal plants only
First online1951
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), hydro units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 96.6 | 23.1% | — |
| 2002 | 105.1 | 28.0% | — |
| 2003 | 218.3 | 51.8% | — |
| 2004 | 112.5 | 26.6% | — |
| 2005 | 111.9 | 26.6% | — |
| 2006 | 109.7 | 28.2% | — |
| 2007 | 84.9 | 21.8% | — |
| 2008 | 56.1 | 14.4% | — |
| 2009 | 136.2 | 35.0% | — |
| 2010 | 98.1 | 25.2% | — |
| 2011 | 128.2 | 33.0% | — |
| 2012 | 115.8 | 29.7% | — |
| 2013 | 201.4 | 51.8% | — |
| 2014 | 115.3 | 29.6% | — |
| 2015 | 143.8 | 37.0% | — |
| 2016 | 108.6 | 27.9% | — |
| 2017 | 86 | 22.1% | — |
| 2018 | 1.2 | 0.3% | — |
| 2019 | 156.5 | 40.2% | — |
| 2020 | 268.5 | 68.8% | — |
| 2021 | 145.1 | 37.3% | — |
| 2022 | 138 | 35.5% | — |
| 2023 | 94.6 | 24.3% | — |
| 2024 | 120.8 | 31.0% | — |
| 2025 | 121.5 | 31.2% | — |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | HY | 38.5 | 44.4 | Feb 1951 | Operating | — | coming soon |
Owner / operator
Operator: Tennessee Valley Authority. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Tennessee Valley Authority | 100.0% | 39 MW |
Nearby plants
Within 80 km.
| Bristol Plant | retired | 10 km |
| Wolf Hills Energy | 285 MW | 15.8 km |
| Wilbur | 11 MW | 20.4 km |
| Watauga | 58 MW | 20.5 km |
| Boone Dam | 106 MW | 32.4 km |
| Mountain Home Energy Center | 4 MW | 35 km |