Florence Mill
Florence County, South Carolina · EIA plant ID 50806 · Operator: WestRock-Florence
×12 MW other retired since 2020 (latest Dec 2025)
Nameplate92MWSummer 87 MW
Generators2in service
Net generation438GWh12 mo to Aug 2026
Capacity factor45%other units, summer MW
Heat rate4,867Btu/kWhfossil units, electric fuel, HHV
First online1974
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
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), other 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 | 644.9 | 168.5% | 15,776 |
| 2002 | 597.3 | 156.2% | 14,207 |
| 2003 | 710.3 | 174.6% | 7,989 |
| 2004 | 691.8 | 177.3% | 5,081 |
| 2005 | 667.9 | 178.4% | 5,081 |
| 2006 | 625 | 180.3% | 5,081 |
| 2007 | 555.9 | 179.2% | 5,081 |
| 2008 | 540 | 179.2% | 5,081 |
| 2009 | 525.9 | 178.4% | 5,081 |
| 2010 | 525.3 | 178.2% | 5,081 |
| 2011 | 566 | 195.1% | 5,081 |
| 2012 | 555.1 | 54.9% | 5,081 |
| 2013 | 511.3 | 49.5% | 5,081 |
| 2014 | 493.2 | 45.6% | 5,081 |
| 2015 | 441.2 | 42.8% | 5,081 |
| 2016 | 467.4 | 44.1% | 4,867 |
| 2017 | 458.4 | 47.7% | 4,867 |
| 2018 | 440.1 | 47.5% | 4,867 |
| 2019 | 360.4 | 39.5% | 4,867 |
| 2020 | 373.2 | 38.3% | 4,867 |
| 2021 | 370.8 | 38.2% | 4,867 |
| 2022 | 414.9 | 44.5% | 4,867 |
| 2023 | 393.8 | 40.6% | 4,867 |
| 2024 | 334.5 | 35.2% | 4,867 |
| 2025 | 419.4 | 42.0% | 4,867 |
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 |
|---|---|---|---|---|---|---|---|---|
| GEN2 | Wood/Wood Waste Biomass | ST | 15 | 12.5 | Nov 1974 | Operating | — | coming soon |
| GEN3 | Wood/Wood Waste Biomass | ST | 76.5 | 74 | Mar 1987 | Operating | — | coming soon |
| GEN1 | Wood/Wood Waste Biomass | ST | 12.3 | 12.3 | Nov 1963 | Retired Dec 2025 | — | coming soon |
Owner / operator
Operator: WestRock-Florence. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| WestRock-Florence | 100.0% | 92 MW |
Nearby plants
Within 80 km.
| Rankin Solar Center, LLC | 10 MW | 12.8 km |
| Rhubarb One SC | — | 13.9 km |
| Ebbie Solar, LLC | 10 MW | 14.8 km |
| Cardinal Solar LLC | 7 MW | 17 km |
| South Solar | 2 MW | 17.7 km |
| Jessamine Solar | 2 MW | 18 km |