22.5 MW Hydro operating in Stephens, GA — Southern Company Services, Inc. - Trans
22.5 MW
Nameplate Capacity
3
Generators
units
Conventional Hydroelectric
Technology
1925
Operating Since
Coordinates
34.6814, -83.3428
County
Stephens, GA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Georgia Power Co | Georgia Power | — |
| Owner(s) | Georgia Power Co | Southern | — |
| Status | Operating | — | — |
Yonah is a hydroelectric power plant located in Stephens County, Georgia. The plant has a total capacity of 22.5 MW across three generators, and it began operating in 1925. The primary fuel source is water (WAT), and the plant utilizes conventional hydroelectric technology. The owner and operator is Georgia Power Co, a subsidiary of Southern Company. Yonah operates within the Southern Company Services, Inc. - Trans balancing authority and the SERC NERC region.
In the most recent year with available data, Yonah generated 42,159 MWh of electricity, achieving a capacity factor of 21.3%. The plant is ranked 16th out of 30 hydroelectric facilities in Georgia and 465th out of 1464 nationally. Financial data indicates an installed cost of $513 per kW.
Generated from EIA, GEM, and public data sources
NERC Region
SERC
Balancing Authority
Southern Company Services, Inc. - Trans
Grid Voltage
115 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
2.4K MWh
Latest Month
42.2K MWh
Annual Generation
21.3%
Capacity Factor
$679/kW
Installed Cost
$8.2/MWh
Operating Cost
Georgia Power Company
Reporting Utility
Cumulative Installed Cost
Per-Unit Cost Trends
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
U.S.-Japan investment framework takes shape around massive natural gas power projects
A 9.2 GW project in southern Ohio and up to 10 GW of NextEra hubs in Texas and Pennsylvania mark the first concrete steps under Japan's $550 billion U.S. commitment
U.S.-Japan investment framework takes shape around massive natural gas power projects
A 9.2 GW project in southern Ohio and up to 10 GW of NextEra hubs in Texas and Pennsylvania mark the first concrete steps under Japan's $550 billion U.S. commitment
U.S.-Japan investment framework takes shape around massive natural gas power projects
A 9.2 GW project in southern Ohio and up to 10 GW of NextEra hubs in Texas and Pennsylvania mark the first concrete steps under Japan's $550 billion U.S. commitment
U.S.-Japan investment framework takes shape around massive natural gas power projects
A 9.2 GW project in southern Ohio and up to 10 GW of NextEra hubs in Texas and Pennsylvania mark the first concrete steps under Japan's $550 billion U.S. commitment
Last updated 2026-03-25
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