Magic Valley Generating Station
Hidalgo County, Texas · EIA plant ID 55123 · Operator: Calpine Corp-Magic Valley
Nameplate801MWSummer 667 MW
Generators3in service
Net generation1,413GWh12 mo to Aug 2026
Capacity factor24%gas/coal/oil units, summer MW
Heat rate7,989Btu/kWhfossil units, electric fuel, HHV
First online2002Runs 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 | 390.4 | — | — |
| 2002 | 2,283.4 | — | — |
| 2003 | 1,594.2 | 26.7% | 11,418 |
| 2004 | 2,713.2 | 45.3% | 7,021 |
| 2005 | 2,977 | 49.8% | 6,994 |
| 2006 | 1,615.7 | 27.0% | 7,204 |
| 2007 | 2,940.1 | 49.2% | 7,324 |
| 2008 | 3,212.2 | 53.6% | 7,410 |
| 2009 | 2,919.6 | 48.9% | 7,276 |
| 2010 | 2,900.3 | 48.5% | 7,282 |
| 2011 | 3,724.4 | 62.3% | 7,345 |
| 2012 | 4,143.9 | 69.2% | 7,432 |
| 2013 | 3,527.2 | 59.0% | 7,233 |
| 2014 | 3,715.4 | 62.2% | 7,276 |
| 2015 | 3,217.7 | 53.9% | 7,283 |
| 2016 | 3,178.9 | 53.1% | 7,281 |
| 2017 | 3,105.2 | 52.0% | 7,377 |
| 2018 | 3,271.7 | 54.8% | 7,289 |
| 2019 | 2,850 | 47.7% | 7,260 |
| 2020 | 3,214.5 | 53.7% | 7,313 |
| 2021 | 2,659.5 | 44.5% | 7,470 |
| 2022 | 2,422.8 | 40.6% | 7,462 |
| 2023 | 2,883.4 | 49.4% | 7,456 |
| 2024 | 2,193.8 | 37.4% | 7,578 |
| 2025 | 2,229.1 | 38.1% | 7,935 |
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 | 267 | 215 | Feb 2002 | Operating | — | coming soon |
| CTG2 | Natural Gas Fired Combined Cycle | CT | 267 | 215 | Feb 2002 | Operating | — | coming soon |
| STG | Natural Gas Fired Combined Cycle | CA | 267 | 237 | Feb 2002 | Operating | — | coming soon |
Owner / operator
Operator: Calpine Corp-Magic Valley. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Calpine Corp-Magic Valley | 100.0% | 801 MW |
Nearby plants
Within 80 km.
| North Edinburg BESS 1 | — | 0.8 km |
| Hidalgo Energy Center | 551 MW | 1.4 km |
| Gunnar Reliability Project | — | 5 km |
| SE Edinburg BESS | 10 MW | 7.2 km |
| WAL3886 | 1 MW | 8.2 km |
| Carambola BESS | 98 MW | 11.2 km |