Northside Generating Station
Duval County, Florida · EIA plant ID 667 · Operator: JEA
Nameplate1,407MWSummer 1,322 MW
Generators7in service
Net generation3,407GWh12 mo to Aug 2026
Capacity factor29%gas/coal/oil units, summer MW
Heat rate11,146Btu/kWhfossil units, electric fuel, HHV
First online1966Runs as intermediate
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), 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 | 2,686 | — | — |
| 2002 | 3,713.1 | — | — |
| 2003 | 4,725 | 42.7% | 10,290 |
| 2004 | 4,670 | 42.0% | 10,322 |
| 2005 | 4,976.8 | 44.9% | 10,089 |
| 2006 | 4,491.2 | 40.6% | 10,225 |
| 2007 | 4,570.8 | 41.3% | 9,393 |
| 2008 | 4,359.7 | 39.3% | 10,205 |
| 2009 | 4,045.7 | 36.6% | 10,004 |
| 2010 | 4,319.4 | 39.0% | 10,040 |
| 2011 | 3,193.3 | 28.9% | 10,612 |
| 2012 | 2,364 | 21.3% | 11,268 |
| 2013 | 2,770.8 | 23.9% | 10,437 |
| 2014 | 3,709.2 | 32.0% | 10,386 |
| 2015 | 3,787.8 | 32.7% | 10,371 |
| 2016 | 4,733 | 40.8% | 10,077 |
| 2017 | 2,870.5 | 24.8% | 10,474 |
| 2018 | 4,278.1 | 36.9% | 10,575 |
| 2019 | 3,878.2 | 33.5% | 10,225 |
| 2020 | 4,645.1 | 40.0% | 10,462 |
| 2021 | 3,209.8 | 27.6% | 10,772 |
| 2022 | 3,313.8 | 28.2% | 11,122 |
| 2023 | 3,191.9 | 27.2% | 11,201 |
| 2024 | 2,906.1 | 24.8% | 11,506 |
| 2025 | 2,854.6 | 24.4% | 11,116 |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Conventional Steam Coal | ST | 297.5 | 293 | Mar 1966 | Operating | — | coming soon |
| 2 | Conventional Steam Coal | ST | 297.5 | 293 | Jun 1972 | Operating | — | coming soon |
| 4 | Petroleum Liquids | GT | 62.1 | 53 | Jan 1975 | Operating | — | coming soon |
| 5 | Petroleum Liquids | GT | 62.1 | 53 | Dec 1974 | Operating | — | coming soon |
| 6 | Petroleum Liquids | GT | 62.1 | 53 | Dec 1974 | Operating | — | coming soon |
| GT3 | Petroleum Liquids | GT | 62.1 | 53 | Jan 1975 | Operating | — | coming soon |
| ST3 | Natural Gas Steam Turbine | ST | 563.7 | 524 | Jun 1977 | Operating | — | coming soon |
Owner / operator
Operator: JEA. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| JEA | 100.0% | 1,407 MW |
Nearby plants
Within 80 km.
| Jax LNG | 13 MW | 2.6 km |
| Seminole Mill | 30 MW | 4.3 km |
| Anheuser-Busch Jacksonville | 9 MW | 9.1 km |
| J D Kennedy | 370 MW | 9.1 km |
| Starratt Solar | 5 MW | 9.7 km |
| Baptist Medical Center | 9 MW | 15.6 km |