Weiss Dam
Hydro power plant in Cherokee County, Alabama. 87.6 MW of nameplate capacity across 3 generators, operated by Alabama Power Co.
Also known as Weiss - Main Dam · EIA plant 20
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 87.6 MWNameplate
- Generators
- 3 operatingEIA-860M, August 2026
- Operating since
- June 1961First generator online
- Operator
- Alabama Power CoEIA operator ID 195
- Grid
- SOCOBalancing authority SOCO
- Price nodes
- None linkedNo verified ISO node
- Location
- Cherokee County, AL34.1721, −85.7538
- EIA plant ID
- 20EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Weiss Dam produces
Free · EIA-923Net generation, 2025
188 GWh
187,596 MWh, final
Capacity factor, 2025
24.4%
2024: 23.9%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
164.1–291.4
GWh a year. Low 2016, high 2020
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 125,771 | Not reported | 12 of 12 |
| 2001 | 187,133 | Not reported | 12 of 12 |
| 2002 | 200,835 | Not reported | 12 of 12 |
| 2003 | 298,107 | Not reported | 12 of 12 |
| 2004 | 238,055 | Not reported | 12 of 12 |
| 2005 | 225,806 | Not reported | 12 of 12 |
| 2006 | 142,952 | Not reported | 12 of 12 |
| 2007 | 77,268 | Not reported | 12 of 12 |
| 2008 | 118,818 | Not reported | 12 of 12 |
| 2009 | 289,961 | Not reported | 12 of 12 |
| 2010 | 193,703 | 25.2% | 12 of 12 |
| 2011 | 159,382 | 20.8% | 12 of 12 |
| 2012 | 134,743 | 17.5% | 12 of 12 |
| 2013 | 317,610 | 41.4% | 12 of 12 |
| 2014 | 209,892 | 27.4% | 12 of 12 |
| 2015 | 212,172 | 27.6% | 12 of 12 |
| 2016 | 164,092 | 21.3% | 12 of 12 |
| 2017 | 177,879 | 23.2% | 12 of 12 |
| 2018 | 280,944 | 36.6% | 12 of 12 |
| 2019 | 272,027 | 35.4% | 12 of 12 |
| 2020 | 291,404 | 37.9% | 12 of 12 |
| 2021 | 276,815 | 36.1% | 12 of 12 |
| 2022 | 235,864 | 30.7% | 12 of 12 |
| 2023 | 183,203 | 23.9% | 12 of 12 |
| 2024 | 184,003 | 23.9% | 12 of 12 |
| 2025 | 187,596 | 24.4% | 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 | 29.2 | July 1962 |
| 2 | Conventional Hydroelectric | 29.2 | June 1961 |
| 3 | Conventional Hydroelectric | 29.2 | June 1961 |
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 Alabama Power Co 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 Weiss Dam
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Questions about Weiss Dam
How much power does Weiss Dam produce?
Weiss Dam reported 187,596 MWh (188 GWh) of net generation in 2025, a 24.4% capacity factor on 87.6 MW of nameplate capacity.
Where is Weiss Dam?
Weiss Dam is in Cherokee County, Alabama, at 34.1721, −85.7538. It is in the Southern Company Services, Inc. - Trans balancing area (SOCO).
Who operates Weiss Dam?
EIA-860M for August 2026 lists Alabama Power Co as the operator (EIA operator ID 195). The operator is not always the owner.
When did Weiss Dam start operating?
Its first generator began operating in June 1961, 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