Milner Butte LFGE
Landfill gas power plant in Cassia County, Idaho. 3.9 MW of nameplate capacity across 3 generators, operated by Southern Idaho Solid Waste.
Also known as EIA plant 63755
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 3.9 MWNameplate
- Generators
- 3 operatingEIA-860M, August 2026
- Operating since
- October 2018First generator online
- Operator
- Southern Idaho Solid WasteEIA operator ID 63439
- Grid
- IPCOBalancing authority IPCO
- Price nodes
- None linkedNo verified ISO node
- Location
- Cassia County, ID42.4669, −114.0046
- EIA plant ID
- 63755EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Milner Butte LFGE produces
Free · EIA-923Net generation, 2025
26.7 GWh
26,669 MWh, final
Capacity factor, 2025
78.1%
2024: 70.4%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2019 to 2025
16.3–26.7
GWh a year. Low 2019, high 2025
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | Not reported | Not reported | 0 of 12 |
| 2006 | Not reported | Not reported | 0 of 12 |
| 2007 | Not reported | Not reported | 0 of 12 |
| 2008 | Not reported | Not reported | 0 of 12 |
| 2009 | Not reported | Not reported | 0 of 12 |
| 2010 | Not reported | Not reported | 0 of 12 |
| 2011 | Not reported | Not reported | 0 of 12 |
| 2012 | Not reported | Not reported | 0 of 12 |
| 2013 | Not reported | Not reported | 0 of 12 |
| 2014 | Not reported | Not reported | 0 of 12 |
| 2015 | Not reported | Not reported | 0 of 12 |
| 2016 | Not reported | Not reported | 0 of 12 |
| 2017 | Not reported | Not reported | 0 of 12 |
| 2018 | Not reported | Not reported | 0 of 12 |
| 2019 | 16,303 | 71.6% | 12 of 12 |
| 2020 | 17,664 | 77.3% | 12 of 12 |
| 2021 | 18,334 | 80.5% | 12 of 12 |
| 2022 | 18,297 | 80.3% | 12 of 12 |
| 2023 | 18,407 | Not reported | 12 of 12 |
| 2024 | 24,131 | 70.4% | 12 of 12 |
| 2025 | 26,669 | 78.1% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 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 CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| E1 | Landfill Gas | 1.3 | June 2023 |
| E2 | Landfill Gas | 1.3 | October 2018 |
| E3 | Landfill Gas | 1.3 | October 2018 |
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 Southern Idaho Solid Waste 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.
300 analyst questions a month, plus MCP
Query Milner Butte LFGE and 14,224 other projects from Claude or your own tools. Free accounts get 1 question a day.
Power plants near Milner Butte LFGE
Questions about Milner Butte LFGE
How much power does Milner Butte LFGE produce?
Milner Butte LFGE reported 26,669 MWh (26.7 GWh) of net generation in 2025, a 78.1% capacity factor on 3.9 MW of nameplate capacity.
Where is Milner Butte LFGE?
Milner Butte LFGE is in Cassia County, Idaho, at 42.4669, −114.0046. It is in the Idaho Power Company balancing area (IPCO).
Who operates Milner Butte LFGE?
EIA-860M for August 2026 lists Southern Idaho Solid Waste as the operator (EIA operator ID 63439). The operator is not always the owner.
When did Milner Butte LFGE start operating?
Its first generator began operating in October 2018, 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)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page