Fernandina Beach Mill
Nassau County, Florida · EIA plant ID 10202 · Operator: RockTenn-Jackson Fenandina
Nameplate97MWSummer 80 MW
Generators2in service
Net generation573GWh12 mo to Aug 2026
Capacity factor57%other units, summer MW
Heat rate4,935Btu/kWhfossil units, electric fuel, HHV
First online1982
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 | 650.9 | — | 7,460 |
| 2002 | 376.8 | — | — |
| 2004 | 578 | 136.2% | 4,861 |
| 2005 | 581.2 | 138.4% | 4,861 |
| 2006 | 582.8 | 142.0% | 4,861 |
| 2007 | 610.4 | 149.4% | 4,861 |
| 2008 | 651.1 | 161.6% | 4,861 |
| 2009 | 657.6 | 170.7% | 4,861 |
| 2010 | 658 | 138.6% | 4,668 |
| 2011 | 734.5 | 171.3% | 4,702 |
| 2012 | 578.1 | 132.7% | 5,073 |
| 2013 | 597 | — | 5,066 |
| 2014 | 624.5 | — | 5,061 |
| 2015 | 631.5 | 62.5% | 5,058 |
| 2016 | 660.1 | 62.0% | 4,935 |
| 2017 | 641 | 63.1% | 4,935 |
| 2018 | 688.2 | 64.5% | 4,935 |
| 2019 | 634.1 | 61.0% | 4,935 |
| 2020 | 612.4 | 62.3% | 4,935 |
| 2021 | 636.1 | 62.9% | 4,935 |
| 2022 | 582.6 | 58.4% | 4,935 |
| 2023 | 557.7 | 55.0% | 4,935 |
| 2024 | 568.2 | 56.0% | 4,935 |
| 2025 | 591.9 | 58.6% | 4,935 |
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 |
|---|---|---|---|---|---|---|---|---|
| GEN5 | Wood/Wood Waste Biomass | ST | 37.4 | 30 | Jan 1988 | Operating | — | coming soon |
| GEN6 | Wood/Wood Waste Biomass | ST | 59.5 | 50 | Sep 1982 | Operating | — | coming soon |
| GEN4 | Conventional Steam Coal | ST | 9.3 | 7 | Mar 1963 | Retired Dec 2003 | — | coming soon |
Owner / operator
Operator: RockTenn-Jackson Fenandina. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| RockTenn-Jackson Fenandina | 100.0% | 97 MW |
Nearby plants
Within 80 km.
| Eight Flags Energy | 22 MW | 2.8 km |
| Fernandina Plant | 42 MW | 2.8 km |
| Naval Submarine Base Kings Bay | 30 MW | 14.3 km |
| Kings Bay Solar Facility | 30 MW | 16.7 km |
| Starratt Solar | 5 MW | 25.1 km |
| AEP Jacksonville Solar Project | 7 MW | 28.3 km |