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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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| 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
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
−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.
Forward-looking generation outlook with probabilistic ranges across weather, demand, and policy scenarios. Powered by InfraSure's generation modeling stack.
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2013
$2,294/kW
Est. Construction Cost
Total estimated cost: $737.0M
Forward revenue, DSCR bands, and refinancing risk projected under price, demand, and policy scenarios. Powered by InfraSure's asset cashflow stack.
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This plant's balancing authority participates in the Southeast Energy Exchange Market (SEEM). SEEM is a bilateral exchange — no public nodal pricing.
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
Last updated 2026-03-14
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