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321.2 MW Conventional Hydroelectric (112 MW) + Hydroelectric Pumped Storage (209 MW) operating in Hancock, GA
321.2 MW
Nameplate Capacity
6
Generators
units
Hybrid (2)
Technology
Conventional Hydroelectric + Hydroelectric Pumped Storage
1979
Operating Since
Coordinates
33.3502, -83.1574
County
Hancock, GA
Nearby Plants
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Request a demo →| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Georgia Power Co | Georgia Power | — |
| Owner(s) | Georgia Power Co | Southern | — |
| Status | Operating | operating | — |
Wallace Dam is a 321.2 MW hybrid hydroelectric power plant located in Hancock County, Georgia. The plant, which began operating in 1979, is owned by Southern Company and operated by Georgia Power Co. It utilizes both conventional hydroelectric and pumped storage technologies. The facility consists of 6 generators and uses water (WAT) as its primary fuel source. Wallace Dam operates within the Southern Company Services, Inc. - Trans balancing authority and the SERC NERC region.
In the most recent year of data, Wallace Dam generated 39,914 MWh of electricity, resulting in a capacity factor of 1.4%. The plant is ranked as the 5th largest of 7 hydroelectric facilities in Georgia, and 66th out of 194 nationally.
Generated from EIA, GEM, and public data sources
Grid Region
Southeast
Market
SEEM Participant
NERC Region
SERC — SERC Reliability Corporation
Balancing Authority
Southern Company Services, Inc. - Trans (SOCO)
Grid Voltage
230.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
−2.1K MWh
Net Charging
39.9K MWh
Annual Net Energy
1.4%
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.
2013
$2,294/kW
Est. Construction Cost
Total estimated cost: $737.0M
This plant's balancing authority participates in the Southeast Energy Exchange Market (SEEM). SEEM is a bilateral exchange — no public nodal pricing.
Last updated 2026-03-14
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