SEGS IVRetired
San Bernardino County, California · EIA plant ID 10440 · Operator: FPL Energy Operating Services Inc - SEGS
×34 MW solar retired since 2020 (latest Jul 2021)
Nameplate—MWSummer — MW
Generators0in service
Net generation—GWh12 mo
Capacity factor—no 923 generation in the last 12 months
Heat rate—Btu/kWhfossil units, electric fuel, HHV
First online—
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), primary-fuel 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 | 85 | 16.3% | 12,142 |
| 2002 | 92.4 | 18.3% | 11,968 |
| 2003 | 82.2 | 17.9% | 13,927 |
| 2004 | 72.4 | 19.1% | 11,622 |
| 2005 | 61 | 17.9% | 14,017 |
| 2006 | 60.9 | 16.6% | 14,006 |
| 2007 | 65.7 | 19.0% | 15,913 |
| 2008 | 72.5 | 21.9% | 16,237 |
| 2009 | 83.4 | 20.2% | 15,003 |
| 2010 | 75.9 | 20.0% | 15,780 |
| 2011 | 74.5 | 18.3% | 15,929 |
| 2012 | 78.7 | 19.7% | 15,890 |
| 2013 | 63.3 | 18.5% | 17,975 |
| 2014 | 58.4 | 17.2% | 20,878 |
| 2015 | 59.2 | 16.8% | 18,506 |
| 2016 | 55.3 | 15.5% | 18,019 |
| 2017 | 43.8 | 13.7% | 17,137 |
| 2018 | 44.4 | 14.1% | — |
| 2019 | 41.9 | 13.3% | — |
| 2020 | 0 | 0.0% | — |
| 2021 | 0 | 0.0% | — |
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 | Solar Thermal without Energy Storage | ST | 34.2 | 36 | Dec 1986 | Retired Jul 2021 | — | coming soon |
Owner / operator
Operator: FPL Energy Operating Services Inc - SEGS. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
Nearby plants
Within 80 km.
| SEGS III | retired | 0.6 km |
| SEGS V | retired | 0.8 km |
| SEGS VII | retired | 1 km |
| Resurgence Solar | 165 MW | 1.2 km |
| Resurgence Solar II | 88 MW | 1.2 km |
| SEGS VI | retired | 1.4 km |