Bosque County Peaking
Bosque County, Texas · EIA plant ID 55172 · Operator: Calpine Bosque Energy Center LLC
Nameplate807MWSummer 763 MW
Generators5in service
Net generation3,881GWh12 mo to Aug 2026
Capacity factor52%gas/coal/oil units, summer MW
Heat rate7,338Btu/kWhfossil units, electric fuel, HHV
First online2000Runs as baseload
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 | 1,102.5 | — | — |
| 2002 | 1,805.2 | — | — |
| 2003 | 1,554.1 | 32.4% | 7,017 |
| 2004 | 1,352.2 | 28.1% | 7,150 |
| 2005 | 1,879.7 | 39.2% | 7,905 |
| 2006 | 1,354 | 28.2% | 8,397 |
| 2007 | 895.4 | 18.6% | 7,500 |
| 2008 | 1,216 | 25.3% | 8,013 |
| 2009 | 1,180.5 | 24.6% | 7,871 |
| 2010 | 639.4 | 9.8% | 7,444 |
| 2011 | 1,617.5 | 24.7% | 7,460 |
| 2012 | 2,174.2 | 33.1% | 7,215 |
| 2013 | 3,743.4 | 57.1% | 7,087 |
| 2014 | 3,743.6 | 57.1% | 7,095 |
| 2015 | 4,675.2 | 71.4% | 7,036 |
| 2016 | 4,586.6 | 69.8% | 7,060 |
| 2017 | 4,583 | 69.9% | 7,064 |
| 2018 | 4,184.9 | 63.9% | 7,020 |
| 2019 | 4,256.9 | 64.1% | 6,980 |
| 2020 | 4,413.8 | 66.3% | 6,932 |
| 2021 | 4,080.5 | 61.5% | 7,075 |
| 2022 | 4,651.2 | 69.6% | 6,994 |
| 2023 | 4,864.8 | 72.8% | 6,978 |
| 2024 | 4,085.1 | 61.0% | 7,138 |
| 2025 | 4,111 | 61.5% | 7,251 |
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 |
|---|---|---|---|---|---|---|---|---|
| GT-1 | Natural Gas Fired Combined Cycle | CT | 154 | 158 | Jul 2000 | Operating | — | coming soon |
| GT-2 | Natural Gas Fired Combined Cycle | CT | 154 | 158 | Jul 2000 | Operating | — | coming soon |
| GT-3 | Natural Gas Fired Combined Cycle | CT | 154 | 157 | Jun 2001 | Operating | — | coming soon |
| ST-4 | Natural Gas Fired Combined Cycle | CA | 95 | 82 | Jun 2001 | Operating | — | coming soon |
| ST-5 | Natural Gas Fired Combined Cycle | CA | 250 | 208 | Jan 2010 | Operating | — | coming soon |
| GT-4 | — | CA | 95 | 86 | Jun 2001 | not_current | — | coming soon |
Owner / operator
Operator: Calpine Bosque Energy Center LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Calpine Bosque Energy Center LLC | 100.0% | 807 MW |
Nearby plants
Within 80 km.
| Whitney | 42 MW | 1.3 km |
| Lake Whitney Solar | — | 4.5 km |
| BT Hickerson Solar, LLC | 310 MW | 15.6 km |
| Leitrim Solar Park | — | 16.3 km |
| Dileo Solar | 71 MW | 16.8 km |
| Markum Solar Farm | 161 MW | 18.4 km |