Substation 20 Plant
Orangeburg County, South Carolina · EIA plant ID 59728 · Operator: City of Orangeburg - (SC)
Nameplate2MWSummer 2 MW
Generators1in service
Net generation0GWh12 mo to Dec 2025
Capacity factor1%gas/coal/oil units, summer MW
Heat rate9,315Btu/kWhfossil units, electric fuel, HHV
First online2014Runs as rarely runs
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) |
|---|---|---|---|
| 2014 | 0 | 0.4% | 15,463 |
| 2015 | -0 | -0.1% | — |
| 2016 | -0 | -0.2% | — |
| 2017 | -0 | -0.0% | — |
| 2018 | 0.1 | 0.4% | 23,156 |
| 2019 | 0 | 0.3% | 18,780 |
| 2020 | -0 | -0.2% | — |
| 2021 | 0 | 0.1% | — |
| 2022 | 0.2 | 0.9% | 16,422 |
| 2023 | 0.1 | 0.7% | 18,754 |
| 2024 | 0.8 | 4.3% | — |
| 2025 | 0.2 | 1.0% | 9,315 |
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 |
|---|---|---|---|---|---|---|---|---|
| GEN1 | Natural Gas Fired Combustion Turbine | GT | 2 | 2 | Jun 2014 | Operating | — | coming soon |
Owner / operator
Operator: City of Orangeburg - (SC). Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| City of Orangeburg - (SC) | 100.0% | 2 MW |
Nearby plants
Within 80 km.
| Rowesville Rd Plant | 10 MW | 0.7 km |
| SR Cordova | — | 4.9 km |
| Bull Street Plant | 2 MW | 6.1 km |
| North Road Peak | 14 MW | 13.3 km |
| Jamison Solar Farm | 1 MW | 14.9 km |
| Palmetto Plains | 75 MW | 17.4 km |