Benndale
George County, Mississippi · EIA plant ID 2068 · Operator: South Mississippi El Pwr Assn
Nameplate28MWSummer 23 MW
Generators2in service
Net generation49GWh12 mo to Dec 2025
Capacity factor25%gas/coal/oil units, summer MW
Heat rate8,604Btu/kWhfossil units, electric fuel, HHV
First online2020Runs as intermediate
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 0.1 | — | — |
| 2002 | 0.3 | — | — |
| 2003 | 0 | 0.0% | 16,548 |
| 2004 | 0 | 0.0% | 19,534 |
| 2005 | 0.3 | 0.3% | — |
| 2006 | 0 | 0.0% | 29,450 |
| 2007 | 0 | 0.0% | 24,175 |
| 2008 | 0 | 0.0% | 18,160 |
| 2009 | 0 | 0.0% | 19,871 |
| 2010 | 0 | 0.0% | 18,688 |
| 2011 | 0 | 0.0% | 21,273 |
| 2012 | 0.1 | 0.0% | 19,833 |
| 2013 | 0.1 | 0.1% | 21,808 |
| 2014 | 0.6 | 0.5% | 21,196 |
| 2015 | -0 | 0.0% | — |
| 2016 | 0 | 0.0% | — |
| 2017 | 0.8 | 0.6% | 19,245 |
| 2018 | 0 | 0.0% | — |
| 2020 | 39.5 | 26.5% | 9,062 |
| 2021 | 57.7 | 29.2% | 7,664 |
| 2022 | 68.6 | 34.6% | 8,380 |
| 2023 | 58 | 29.3% | 8,219 |
| 2024 | 51.6 | 26.0% | 8,454 |
| 2025 | 49.2 | 24.8% | 8,604 |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| BENU1 | Natural Gas Internal Combustion Engine | IC | 14.2 | 11.3 | Apr 2020 | Operating | — | coming soon |
| BENU2 | Natural Gas Internal Combustion Engine | IC | 14.2 | 11.3 | Apr 2020 | Operating | — | coming soon |
| 1 | Natural Gas Fired Combustion Turbine | GT | 16.2 | 14 | Oct 1969 | Retired Mar 2018 | — | coming soon |
Owner / operator
Operator: South Mississippi El Pwr Assn. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| South Mississippi El Pwr Assn | 100.0% | 28 MW |
Nearby plants
Within 80 km.
| Leaf River Cellulose LLC | 50 MW | 45.6 km |
| Victor J Daniel Jr | 2,229 MW | 46.3 km |
| SR Lott | — | 48.6 km |
| Jack Watson | 919 MW | 54.4 km |
| Hattiesburg Solar Farm | 50 MW | 63.9 km |
| Gulfport Naval Base CSG PV System | 4 MW | 64.1 km |