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65 MW BESS operating in Talbot, GA
65 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2024
Operating Since
Coordinates
32.8036, -84.6604
County
Talbot, 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 | — | — |
The Mossy Branch Battery Facility is a 65 MW battery energy storage system (BESS) located in Talbot County, Georgia. The facility began operating in 2024 and is owned by Southern Company and operated by Georgia Power Co. It is connected to the Southern Company Services, Inc. - Trans balancing authority within the SERC NERC region. The plant utilizes lithium-ion (LIB) battery chemistry and has a total storage capacity of 260 MWh, providing a duration of 4 hours at its full power output.
As of current rankings, the Mossy Branch Battery Facility is the 7th largest of 9 battery storage facilities in Georgia, and the 568th largest of 1205 such facilities nationally. The plant's primary fuel source is electricity (MWH), indicating that it charges from the grid. The facility consists of a single generator.
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
115.0 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.
−814 MWh
Net Charging
-13.1K MWh
Annual Net Energy
-2.3%
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.
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2023
$1,361/kW
Est. Construction Cost
Total estimated cost: $88.5M
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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 2026-05-31
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