Roll DelanoRetired
Kern County, California · EIA plant ID 58297 · Operator: Bloom Energy
×1 MW natural gas retired since 2020 (latest Dec 2023)
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) |
|---|---|---|---|
| 2012 | 0.2 | 8.0% | 6,682 |
| 2013 | 5.6 | 64.5% | 7,027 |
| 2014 | 6.5 | 73.9% | 7,241 |
| 2015 | 4.9 | 56.2% | 7,676 |
| 2016 | 6.4 | 73.0% | 7,239 |
| 2017 | 2.2 | 25.6% | 6,453 |
| 2018 | 8.4 | 96.3% | 7,518 |
| 2019 | 3.9 | 44.0% | 8,234 |
| 2020 | 5.6 | 63.2% | 8,246 |
| 2021 | 8.5 | 97.0% | 7,851 |
| 2022 | 7.1 | 67.8% | 7,644 |
| 2023 | 8.9 | 84.9% | 7,205 |
| 2024 | 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 |
|---|---|---|---|---|---|---|---|---|
| ROL4 | Other Natural Gas | FC | 1.2 | 1.2 | Sep 2012 | Retired Dec 2023 | — | coming soon |
Owner / operator
Operator: Bloom Energy. 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.
| Wonderful Citrus - Delano | 3 MW | 0.4 km |
| Roll Delano 2 | retired | 0.6 km |
| Covanta Delano Energy | 57 MW | 2.2 km |
| Kern Valley SP | 3 MW | 7.7 km |
| Delano Energy Center | 61 MW | 8.2 km |
| North Kern State Prison Phase II | 4 MW | 8.3 km |