- Clean firm
- Operating
- 10 · 100 · 1,000 MW
Map
- Clean firm
- Operating
St Stephen: location. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
St Stephen
Power plant · Hydro
Key facts
Power plant · Hydroran 22% of 2025 Operating- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 1985
- Net generation, 2025
- 161,076 MWh
- Grid
- 115 kV to South Carolina Public Service Authority (SC)
- Location
- Berkeley County, South Carolina
- Operated by
- US Army Corps of EngineersSourceEIA-860M Preliminary Monthly Electric Generator Inventory
Operations
- Net generation, 2025
- 161,076
MWh - Fuel burned, 2025
- 549,592
MMBtu - Capacity factor, 2025
- 21.9
% - Heat rate, 2025
- Not stated
| Year | Net generation (MWh) | Fuel burned (MMBtu) | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|---|
| 2025 | 161,076 | 549,592 | 21.9% | — |
| 2024 | 258,562 | 882,216 | 35.0% | — |
| 2023 | 205,824 | 702,273 | 28.0% | — |
| 2022 | 163,477 | 557,785 | 22.2% | — |
| 2021 | 243,863 | 2,156,725 | 33.1% | — |
| 2020 | 489,597 | 4,292,297 | 66.3% | — |
| 2019 | 306,898 | 2,732,927 | 41.7% | — |
| 2018 | 333,414 | 3,035,401 | 45.3% | — |
| 2017 | 124,928 | 1,150,964 | 17.0% | — |
| 2016 | 179,304 | 1,656,497 | 24.3% | — |
| 2015 | 270,817 | 2,524,443 | 36.8% | — |
| 2014 | 250,349 | 2,380,820 | 34.0% | — |
| 2013 | 354,312 | 3,380,490 | 48.1% | — |
| 2012 | 28,485 | 276,383 | 3.9% | — |
| 2011 | 41,811 | 412,485 | 5.7% | — |
| 2010 | 191,018 | 1,864,264 | 26.0% | — |
| 2009 | 194,767 | 1,904,098 | 26.5% | — |
| 2008 | 25,370 | 259,801 | 3.4% | — |
| 2007 | 129,066 | 1,275,690 | 17.5% | — |
| 2006 | 115,570 | 1,146,338 | 15.7% | — |
| 2005 | 266,057 | 2,660,304 | 36.2% | — |
| 2004 | 178,559 | 1,789,518 | 24.2% | — |
| 2003 | 454,619 | 4,655,753 | 61.8% | — |
| 2002 | 48,241 | 490,756 | 6.6% | — |
| 2001 | 15,852 | 163,799 | 2.1% | — |
How these are worked out
Net generation and fuel burned are the monthly figures EIA publishes in its bulk electricity file, from the plant's Form 923 reports; a year is the sum of its months. Capacity factor is a full year's net generation over today's nameplate capacity times the hours in that year (8,784 in a leap year), so a plant uprated or partly retired since reads against its current size; heat rate is fuel burned over net generation, for plants that burn fuel. A year with fewer than twelve months stated has no capacity factor, and a value outside the plausible range is left blank rather than shown. By month, the charts apply the same rules to each month's own hours and fuel.
Sources
3 sourcesSources
- EIA-860M
- GEMGlobal Integrated Power Tracker, Global Energy Monitor, September 2026 release (https://globalenergymonitor.org/projects/global-integrated-power-tracker), CC BY 4.0. Modified by Inframation: TransitionZero-sourced rows removed; statuses and technologies mapped to Inframation's vocabulary; figures aggregated. Copyright © Global Energy Monitor. Global Integrated Power Tracker, September 2026 release. Distributed under a Creative Commons Attribution 4.0 International License.
- EIASource: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)