Jefferies
Hydro power plant in Berkeley County, South Carolina. 145.2 MW of nameplate capacity across 5 generators, operated by South Carolina Public Service Authority.
Also known as Jefferies Dam · EIA plant 3319
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 145.2 MWNameplate
- Generators
- 5 operatingEIA-860M, August 2026
- Operating since
- December 1942First generator online
- Operator
- South Carolina Public Service AuthorityEIA operator ID 17543
- Grid
- SCBalancing authority SC
- Price nodes
- None linkedNo verified ISO node
- Location
- Berkeley County, SC33.2444, −79.9909
- EIA plant ID
- 3319EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Jefferies produces
Free · EIA-923Net generation, 2025
234 GWh
233,504 MWh, final
Capacity factor, 2025
18.4%
2024: 19.4%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2016 to 2025
213.3–258.3
GWh a year. Low 2018, high 2020
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 2,063,540 | Not reported | 12 of 12 |
| 2001 | 1,728,504 | Not reported | 12 of 12 |
| 2002 | 2,067,666 | Not reported | 12 of 12 |
| 2003 | 2,218,809 | Not reported | 12 of 12 |
| 2004 | 1,984,954 | Not reported | 12 of 12 |
| 2005 | 2,168,969 | Not reported | 12 of 12 |
| 2006 | 2,199,016 | Not reported | 12 of 12 |
| 2007 | 1,982,860 | Not reported | 12 of 12 |
| 2008 | 1,474,453 | Not reported | 12 of 12 |
| 2009 | 457,491 | Not reported | 12 of 12 |
| 2010 | 892,896 | 17.6% | 12 of 12 |
| 2011 | 650,658 | 12.8% | 12 of 12 |
| 2012 | 532,810 | Not reported | 12 of 12 |
| 2013 | 217,624 | 10.7% | 12 of 12 |
| 2014 | 217,172 | 10.7% | 12 of 12 |
| 2015 | 200,949 | Not reported | 11 of 12 |
| 2016 | 239,100 | Not reported | 12 of 12 |
| 2017 | 220,121 | 17.3% | 12 of 12 |
| 2018 | 213,258 | 16.8% | 12 of 12 |
| 2019 | 242,809 | 19.1% | 12 of 12 |
| 2020 | 258,271 | 20.2% | 12 of 12 |
| 2021 | 246,495 | 19.4% | 12 of 12 |
| 2022 | 240,420 | 18.9% | 12 of 12 |
| 2023 | 247,605 | 19.5% | 12 of 12 |
| 2024 | 247,953 | 19.4% | 12 of 12 |
| 2025 | 233,504 | 18.4% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
Free · EPA CAMPDCO₂, 2011
499,962
US short tons. 2010: 790,280
SO₂, 2011
6,509
US short tons
NOx, 2011
1,198
US short tons
CO₂ per MWh, calculated
0.77 t
About 1,537 lb per MWh
4 of 4 EPA units reported CO₂ in 2011 (1, 2, 3, 4), matched to EIA plant 3319 through the EPA–EIA crosswalk. The per-MWh rate is EPA CO₂ divided by EIA-923 net generation. The two reporting boundaries can differ.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| H1 | Conventional Hydroelectric | 30.6 | December 1942 |
| H2 | Conventional Hydroelectric | 36.9 | December 1942 |
| H3 | Conventional Hydroelectric | 30.6 | December 1942 |
| H4 | Conventional Hydroelectric | 36.9 | December 1942 |
| H6 | Conventional Hydroelectric | 10.2 | December 1942 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists South Carolina Public Service Authority as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
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Power plants near Jefferies
More plants operated by South Carolina Public Service Authority
Questions about Jefferies
How much power does Jefferies produce?
Jefferies reported 233,504 MWh (234 GWh) of net generation in 2025, a 18.4% capacity factor on 145.2 MW of nameplate capacity.
Where is Jefferies?
Jefferies is in Berkeley County, South Carolina, at 33.2444, −79.9909. It is in the South Carolina Public Service Authority balancing area (SC).
Who operates Jefferies?
EIA-860M for August 2026 lists South Carolina Public Service Authority as the operator (EIA operator ID 17543). The operator is not always the owner.
When did Jefferies start operating?
Its first generator began operating in December 1942, according to EIA-860M.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page