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3.5 MW Batteries (1 MW) + Natural Gas Fired Combustion Turbine (1 MW) + Solar Photovoltaic (2 MW) operating in Cobb, GA — Southern Company Services, Inc. - Trans
3.5 MW
Nameplate Capacity
3
Generators
units
Hybrid (3)
Technology
Batteries + Natural Gas Fired Combustion Turbine + Solar Photovoltaic
2020
Operating Since
Coordinates
33.9793, -84.5561
County
Cobb, GA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Cobb Electric Membership Corporation | Cobb Electric Membership | — |
| Owner(s) | Cobb Electric Membership Corporation, Gas South | Gas South | — |
| Status | Operating | operating | — |
GEM identifies the owner as Gas South
This entity is not yet in the GEM ownership database — chain unavailable.
Located in Cobb County, Georgia, the Solar BESS Hybrid plant has a total capacity of 3.5 MW. The plant, which began operating in 2020, is owned and operated by Cobb Electric Membership Corporation. It is a hybrid facility utilizing multiple technologies: batteries, a natural gas fired combustion turbine, and solar photovoltaic (PV) generation. The solar PV array uses dual-axis tracking. The plant's battery energy storage system (BESS) has a capacity of 4 MWh and a duration of 4 hours, utilizing lithium-ion battery chemistry (LIB).
The Solar BESS Hybrid plant operates within the Southern Company Services, Inc. - Trans balancing authority, in the SERC NERC region. In its latest year of reported generation, the plant produced 2,273 MWh, achieving a capacity factor of 7.4%. The plant is ranked 9th out of 9 similar plants in the state of Georgia, and 1049th out of 1205 nationally. The plant has 3 generators on site and its primary fuel is listed as MWH.
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
480.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Cooperative
Sector
IPP Non-CHP
122 MWh
Latest Month
2.3K MWh
Annual Generation
7.4%
Capacity Factor
CO₂ Intensity
1 lb/MWh
NOx
0.004 lb/MWh
SO₂
0.000 lb/MWh
CH₄
0.000 lb/MWh
N₂O
0.000 lb/MWh
Capacity Factor
7.5%
Annual Net Gen
2 GWh
CO₂eq
1 lb/MWh
Subregion
SERC South
Data from 2021–2024
$27.7/MWh
Energy Value
$25.0/MWh
Capacity Value
This plant's balancing authority participates in the Southeast Energy Exchange Market (SEEM). SEEM is a bilateral exchange — no public nodal pricing.
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