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145.2 MW Hydro operating in Berkeley, SC — South Carolina Public Service Authority
145.2 MW
Nameplate Capacity
5
Generators
units
Conventional Hydroelectric
Technology
1942
Operating Since
Coordinates
33.2444, -79.9909
County
Berkeley, SC
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | South Carolina Public Service Authority | South Carolina Public Service Authority | — |
| Owner(s) | South Carolina Public Service Authority | South Carolina Public Service Authority | — |
| Status | Operating | operating | — |
Pinopolis Dam is a dam in Berkeley County, South Carolina.
Read more on WikipediaThe Jefferies Hydroelectric Generating Station, plant ID 3319, is located in Berkeley County, South Carolina. It is owned and operated by the South Carolina Public Service Authority (Santee Cooper). The plant began operating in 1942 and has a total capacity of 145.2 MW across five conventional hydroelectric generators. The primary fuel source is water (WAT).
Jefferies is the 7th largest hydroelectric plant in South Carolina and ranks 133rd nationally. The plant operates within the South Carolina Public Service Authority balancing authority and the SERC NERC region. In the most recent year with available data, the plant generated 247,953 MWh, achieving a capacity factor of 19.4%.
Generated from EIA, GEM, and public data sources
Grid Region
Southeast
Market
SEEM Participant
NERC Region
SERC — SERC Reliability Corporation
Balancing Authority
South Carolina Public Service Authority (SC)
Grid Voltage
115.0 kV
Regulatory Status
RE — Regulated
Entity Type
State
Sector
Electric Utility
19.0K MWh
Latest Month
248.0K MWh
Annual Generation
19.4%
Capacity Factor
CO₂ Intensity
—
NOx
—
SO₂
—
CH₄
0.000 lb/MWh
N₂O
0.000 lb/MWh
Capacity Factor
19.5%
Annual Net Gen
248 GWh
CO₂eq
0.000 lb/MWh
Subregion
SERC Virginia/Carolina
2013
$2,294/kW
Est. Construction Cost
Total estimated cost: $333.2M
This plant's balancing authority participates in the Southeast Energy Exchange Market (SEEM). SEEM is a bilateral exchange — no public nodal pricing.
Last updated 2026-03-26
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