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132 MW Batteries (66 MW) + Solar Photovoltaic (66 MW) operating in Calhoun, SC — Dominion Energy South Carolina
132 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2024
Operating Since
Coordinates
33.6488, -80.6391
County
Calhoun, SC
Nearby Plants
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Lone Star Solar | Southern Current | — |
| Owner(s) | Lone Star Solar | energyRE | — |
| Status | Operating | operating | — |
GEM identifies the owner as energyRE
This entity is not yet in the GEM ownership database — chain unavailable.
Lone Star Solar is a 132 MW hybrid power plant located in Calhoun County, South Carolina. The plant, which began operating in 2024, is owned and operated by Lone Star Solar. It utilizes both solar photovoltaic technology and battery storage. The facility has two generators and is considered the third-largest solar plant in South Carolina, and ranks 420th nationally. The plant connects to the Dominion Energy South Carolina balancing authority within the SERC NERC region.
The plant's battery energy storage system (BESS) has a capacity of 198 MWh, providing 3 hours of duration and utilizing lithium-ion battery chemistry (LIB). The solar array uses single-axis tracking. The latest annual generation data shows an output of 163,965 MWh, resulting in a capacity factor of 14.2%. Financial data is available for the plant, sourced from LBNL Solar.
Generated from EIA, GEM, and public data sources
Grid Region
Southeast
Market
SEEM Participant
NERC Region
SERC — SERC Reliability Corporation
Balancing Authority
7.9K MWh
Net Discharge
164.0K MWh
Annual Net Energy
14.2%
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.
Data from 2024
$52.5/MWh
LCOE
This plant's balancing authority participates in the Southeast Energy Exchange Market (SEEM). SEEM is a bilateral exchange — no public nodal pricing.
Last updated 2026-04-09
View all articlesNo ask pi reports yet for this entity.
ask pi about Lone Star SolarDominion Energy South Carolina (SCEG)
Grid Voltage
230.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP