Intermountain Power Project
Natural gas power plant in Millard County, Utah. 1,093.2 MW of nameplate capacity across 2 generators, operated by Los Angeles Department of Water & Power.
Also known as EIA plant 6481
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Key facts
- Capacity
- 1,093.2 MWNameplate
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- October 2025First generator online
- Operator
- Los Angeles Department of Water & PowerEIA operator ID 11208
- Grid
- LDWPBalancing authority LDWP
- Price nodes
- None linkedNo verified ISO node
- Location
- Millard County, UT39.5097, −112.5802
- EIA plant ID
- 6481EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Intermountain Power Project produces
Free · EIA-923Net generation, 2025
Not reported
Not reported MWh, final. 0 of 12 months reported
Capacity factor, 2025
Not reported
2024: 39.6%
January to July 2026
3.22 TWh
Provisional
Range, 2016 to 2024
4.4–8.5
TWh a year. Low 2023, high 2018
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 13,184,564 | Not reported | 12 of 12 |
| 2001 | 13,390,784 | Not reported | 12 of 12 |
| 2002 | 13,485,597 | Not reported | 12 of 12 |
| 2003 | 13,563,388 | Not reported | 12 of 12 |
| 2004 | 14,435,278 | Not reported | 12 of 12 |
| 2005 | 13,664,259 | Not reported | 12 of 12 |
| 2006 | 14,451,689 | Not reported | 12 of 12 |
| 2007 | 14,426,479 | Not reported | 12 of 12 |
| 2008 | 14,449,788 | Not reported | 12 of 12 |
| 2009 | 13,555,580 | Not reported | 12 of 12 |
| 2010 | 13,079,502 | 91.0% | 12 of 12 |
| 2011 | 13,002,872 | 90.5% | 12 of 12 |
| 2012 | 9,763,629 | 67.8% | 12 of 12 |
| 2013 | 12,387,224 | 86.2% | 12 of 12 |
| 2014 | 12,369,826 | 86.1% | 12 of 12 |
| 2015 | 10,860,909 | 82.4% | 11 of 12 |
| 2016 | 8,403,850 | 58.3% | 12 of 12 |
| 2017 | 8,413,932 | 58.6% | 12 of 12 |
| 2018 | 8,499,300 | 59.2% | 12 of 12 |
| 2019 | 7,561,844 | 52.6% | 12 of 12 |
| 2020 | 6,761,939 | 46.9% | 12 of 12 |
| 2021 | 7,580,586 | 52.8% | 12 of 12 |
| 2022 | 5,510,314 | 38.4% | 12 of 12 |
| 2023 | 4,448,880 | 31.0% | 12 of 12 |
| 2024 | 5,707,831 | 39.6% | 12 of 12 |
| 2025 | Not reported | Not reported | 0 of 12 |
| 2026 (provisional, partial year) | 3,216,608 | Not reported | 7 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
Free · EPA CAMPDCO₂, 2025
4.67M
US short tons. 2024: 6.03M
SO₂, 2025
1,228
US short tons
NOx, 2025
6,134
US short tons
2 of 2 EPA units reported CO₂ in 2025 (1SGA, 2SGA), matched to EIA plant 6481 through the EPA–EIA crosswalk.
Water use
Free · EIA-923 cooling, USGSWithdrawal, 2024
3,574
million gallons
Consumption, 2024
3,574
million gallons
Source
DMAD Reservoir
Surface, Fresh. Induced-draft tower
Watershed stress
Severe · 0.996
USGS SUI, HUC12 Sugarville
24 of 24 cooling months report withdrawal. SUI of the HUC12 containing the plant. Blank volumes are unreported, not zero.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 3 | Natural Gas Fired Combined Cycle | 546.6 | October 2025 |
| 4 | Natural Gas Fired Combined Cycle | 546.6 | December 2025 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Los Angeles Department of Water & Power as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Power plants near Intermountain Power Project
More plants operated by Los Angeles Department of Water & Power
Questions about Intermountain Power Project
Where is Intermountain Power Project?
Intermountain Power Project is in Millard County, Utah, at 39.5097, −112.5802. It is in the Los Angeles Department of Water and Power balancing area (LDWP).
Who operates Intermountain Power Project?
EIA-860M for August 2026 lists Los Angeles Department of Water & Power as the operator (EIA operator ID 11208). The operator is not always the owner.
When did Intermountain Power Project start operating?
Its first generator began operating in October 2025, according to EIA-860M.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- EIA-923 cooling water 2024 and the USGS surface water supply and use index, Water years 2010-2020 (Oct 2009 to Sep 2020), mean of monthly values
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page