Mosaic Co Bartow Facility
Polk County, Florida · EIA plant ID 50633 · Operator: Mosaic Company
Nameplate82MWSummer 80 MW
Generators2in service
Net generation170GWh12 mo to Aug 2026
Capacity factor24%other units, summer MW
Heat rate—Btu/kWhfossil units, electric fuel, HHV
First online1985
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 | 412.4 | 57.7% | 7,679 |
| 2002 | 125.2 | 17.9% | — |
| 2004 | 453.8 | 64.6% | — |
| 2005 | 482 | 68.8% | — |
| 2006 | 412.1 | 58.8% | — |
| 2007 | 445.4 | 63.5% | — |
| 2008 | 383.4 | 54.6% | — |
| 2009 | 379.6 | 54.2% | — |
| 2010 | 406.3 | 58.0% | — |
| 2011 | 473.5 | 67.6% | — |
| 2012 | 433.5 | 61.7% | — |
| 2013 | 401.4 | 57.3% | — |
| 2014 | 326.8 | 46.6% | — |
| 2015 | 310.6 | 44.3% | — |
| 2016 | 353.5 | 50.3% | — |
| 2017 | 298.2 | 42.5% | — |
| 2018 | 351.8 | 50.2% | — |
| 2019 | 408 | 58.2% | — |
| 2020 | 343.2 | 48.8% | — |
| 2021 | 280.6 | 40.0% | — |
| 2022 | 201.8 | 28.8% | — |
| 2023 | 125.3 | 17.9% | — |
| 2024 | 165.1 | 23.5% | — |
| 2025 | 171 | 24.4% | — |
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 | All Other | ST | 36.9 | 36 | Dec 1985 | Operating | — | coming soon |
| GEN2 | All Other | ST | 45 | 44 | Aug 1992 | Operating | — | coming soon |
Owner / operator
Operator: Mosaic Company. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Mosaic Company | 100.0% | 82 MW |
Nearby plants
Within 80 km.
| Bonnie Mine Solar | 38 MW | 7 km |
| Mulberry Cogeneration Facility | 128 MW | 7.7 km |
| Bartow Solar Energy LLC | 7 MW | 10 km |
| Orange Cogeneration Facility | 157 MW | 10.1 km |
| Peace Creek Solar | 55 MW | 10.7 km |
| Jamison Solar (FL) | 75 MW | 11.8 km |