Wallace Dam
Pumped storage and hydro power plant in Hancock County, Georgia. 321.2 MW of nameplate capacity across 6 generators, operated by Georgia Power Co.
Also known as Wallace Hydroelectric Plant · EIA plant 6087
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 321.2 MWPumped storage 208.8 · Hydro 112.4
- Generators
- 6 operatingEIA-860M, August 2026
- Operating since
- December 1979First generator online
- Operator
- Georgia Power CoEIA operator ID 7140
- Grid
- SOCOBalancing authority SOCO
- Price nodes
- None linkedNo verified ISO node
- Location
- Hancock County, GA33.3502, −83.1574
- EIA plant ID
- 6087EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Wallace Dam produces
Free · EIA-923Net generation, 2025
39.9 GWh
39,914 MWh, final
Capacity factor, 2025
Not reported
2024: Not reported
January to July 2026
−7.48 GWh
Provisional
Range, 2015 to 2025
−49.3–107.9
GWh a year. Low 2016, high 2020
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 442,047 | Not reported | 12 of 12 |
| 2001 | −17,577 | Not reported | 12 of 12 |
| 2002 | −105,751 | Not reported | 12 of 12 |
| 2003 | 12,475 | Not reported | 12 of 12 |
| 2004 | −48,993 | Not reported | 12 of 12 |
| 2005 | 17,885 | Not reported | 12 of 12 |
| 2006 | −94,490 | Not reported | 12 of 12 |
| 2007 | −130,257 | Not reported | 12 of 12 |
| 2008 | −39,806 | Not reported | 12 of 12 |
| 2009 | 27,169 | Not reported | 12 of 12 |
| 2010 | −30,954 | Not reported | 12 of 12 |
| 2011 | −80,736 | Not reported | 12 of 12 |
| 2012 | −128,592 | Not reported | 12 of 12 |
| 2013 | 32,881 | Not reported | 12 of 12 |
| 2014 | −28,386 | Not reported | 12 of 12 |
| 2015 | 49,545 | Not reported | 12 of 12 |
| 2016 | −49,295 | Not reported | 12 of 12 |
| 2017 | −43,515 | Not reported | 12 of 12 |
| 2018 | 30,122 | Not reported | 12 of 12 |
| 2019 | 16,932 | Not reported | 12 of 12 |
| 2020 | 107,865 | Not reported | 12 of 12 |
| 2021 | 52,816 | Not reported | 12 of 12 |
| 2022 | 56,909 | Not reported | 12 of 12 |
| 2023 | 68,713 | Not reported | 12 of 12 |
| 2024 | 18,997 | Not reported | 12 of 12 |
| 2025 | 39,914 | Not reported | 12 of 12 |
| 2026 (provisional, partial year) | −7,478 | Not reported | 7 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 | Hydroelectric Pumped Storage | 52.2 | July 1980 |
| 2 | Hydroelectric Pumped Storage | 52.2 | December 1980 |
| 3 | Conventional Hydroelectric | 56.2 | February 1980 |
| 4 | Conventional Hydroelectric | 56.2 | April 1980 |
| 5 | Hydroelectric Pumped Storage | 52.2 | January 1980 |
| 6 | Hydroelectric Pumped Storage | 52.2 | December 1979 |
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 Georgia 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 Wallace Dam
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Questions about Wallace Dam
How much power does Wallace Dam produce?
Wallace Dam reported 39,914 MWh (39.9 GWh) of net generation in 2025. From January to July 2026 it reported −7.48 GWh, which is provisional.
Where is Wallace Dam?
Wallace Dam is in Hancock County, Georgia, at 33.3502, −83.1574. It is in the Southern Company Services, Inc. - Trans balancing area (SOCO).
Who operates Wallace Dam?
EIA-860M for August 2026 lists Georgia Power Co as the operator (EIA operator ID 7140). The operator is not always the owner.
Is Wallace Dam a pumped storage or a hydro plant?
Both. Pumped storage capacity totals 208.8 MW and hydro capacity totals 112.4 MW.
When did Wallace Dam start operating?
Its first generator began operating in December 1979, 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