Hidalgo Energy Center
Hidalgo County, Texas · EIA plant ID 55545 · Operator: Calpine Corp - Hidalgo
Nameplate551MWSummer 495 MW
Generators3in service
Net generation2,781GWh12 mo to Aug 2026
Capacity factor64%gas/coal/oil units, summer MW
Heat rate7,192Btu/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 | 2,575.5 | — | — |
| 2002 | 1,907 | — | — |
| 2003 | 1,608.1 | 39.1% | 6,980 |
| 2004 | 1,867.6 | 45.2% | 7,296 |
| 2005 | 1,745.4 | 42.4% | 7,410 |
| 2006 | 1,878.6 | 45.6% | 7,471 |
| 2007 | 1,842 | 44.7% | 7,361 |
| 2008 | 2,437.7 | 59.1% | 7,337 |
| 2009 | 1,989.2 | 48.3% | 7,347 |
| 2010 | 1,908.2 | 46.4% | 7,388 |
| 2011 | 2,511.4 | 61.0% | 7,340 |
| 2012 | 2,718.2 | 65.8% | 7,189 |
| 2013 | 2,183 | 53.0% | 7,302 |
| 2014 | 1,571 | 38.2% | 7,478 |
| 2015 | 2,820.3 | 68.5% | 7,218 |
| 2016 | 2,761.2 | 66.9% | 7,332 |
| 2017 | 2,344.8 | 57.0% | 7,395 |
| 2018 | 1,969 | 47.8% | 7,557 |
| 2019 | 2,722.2 | 66.1% | 7,548 |
| 2020 | 2,529.4 | 61.3% | 7,512 |
| 2021 | 2,455.9 | 59.7% | 7,453 |
| 2022 | 2,535.3 | 60.3% | 7,377 |
| 2023 | 2,791.3 | 64.6% | 7,565 |
| 2024 | 2,056.2 | 47.3% | 7,426 |
| 2025 | 2,721.5 | 62.8% | 7,410 |
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 |
|---|---|---|---|---|---|---|---|---|
| CTG1 | Natural Gas Fired Combined Cycle | CT | 176.6 | 159 | Jun 2000 | Operating | — | coming soon |
| CTG2 | Natural Gas Fired Combined Cycle | CT | 176.6 | 159 | Jun 2000 | Operating | — | coming soon |
| STG1 | Natural Gas Fired Combined Cycle | CA | 198.1 | 177 | Jun 2000 | Operating | — | coming soon |
Owner / operator
Operator: Calpine Corp - Hidalgo. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Calpine Corp | 53.7% | 296 MW |
| Calpine Corp - Hidalgo | 25.3% | 140 MW |
| Brownsville Public Utilities Board | 21.0% | 116 MW |
Nearby plants
Within 80 km.
| North Edinburg BESS 1 | — | 1.4 km |
| Magic Valley Generating Station | 801 MW | 1.4 km |
| Gunnar Reliability Project | — | 4 km |
| SE Edinburg BESS | 10 MW | 6.6 km |
| WAL3886 | 1 MW | 8.7 km |
| Carambola BESS | 98 MW | 12 km |