Marsh Valley Development
Hydro power plant in Bannock County, Idaho. 1.6 MW of nameplate capacity across 1 generator, operated by Marsh Valley Development Inc.
Also known as EIA plant 50972
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Key facts
- Capacity
- 1.6 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- April 1993First generator online
- Operator
- Marsh Valley Development IncEIA operator ID 11716
- Grid
- PACEBalancing authority PACE
- Price nodes
- None linkedNo verified ISO node
- Location
- Bannock County, ID42.6260, −112.1493
- EIA plant ID
- 50972EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Marsh Valley Development produces
Free · EIA-923Net generation, 2025
3.51 GWh
3,509 MWh, final
Capacity factor, 2025
25.0%
2024: 15.6%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
2.2–7.7
GWh a year. Low 2024, high 2019
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | 3,345 | Not reported | 12 of 12 |
| 2002 | 3,340 | Not reported | 12 of 12 |
| 2003 | 2,539 | Not reported | 12 of 12 |
| 2004 | 2,070 | Not reported | 12 of 12 |
| 2005 | 4,485 | Not reported | 12 of 12 |
| 2006 | 6,701 | Not reported | 12 of 12 |
| 2007 | 4,934 | Not reported | 12 of 12 |
| 2008 | 4,009 | Not reported | 12 of 12 |
| 2009 | 4,735 | Not reported | 12 of 12 |
| 2010 | 3,150 | 22.5% | 12 of 12 |
| 2011 | 5,925 | 42.3% | 12 of 12 |
| 2012 | 5,083 | 36.2% | 12 of 12 |
| 2013 | 3,353 | 23.9% | 12 of 12 |
| 2014 | 3,661 | 26.1% | 12 of 12 |
| 2015 | 3,143 | 22.4% | 12 of 12 |
| 2016 | 4,729 | 33.6% | 12 of 12 |
| 2017 | 7,588 | 54.1% | 12 of 12 |
| 2018 | 6,867 | 49.0% | 12 of 12 |
| 2019 | 7,669 | 54.7% | 12 of 12 |
| 2020 | 6,278 | 44.7% | 12 of 12 |
| 2021 | 3,981 | 28.4% | 12 of 12 |
| 2022 | 3,726 | 26.6% | 12 of 12 |
| 2023 | 6,937 | 49.5% | 12 of 12 |
| 2024 | 2,187 | 15.6% | 12 of 12 |
| 2025 | 3,509 | 25.0% | 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. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 1 | Conventional Hydroelectric | 1.6 | April 1993 |
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 Marsh Valley Development Inc as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
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Questions about Marsh Valley Development
How much power does Marsh Valley Development produce?
Marsh Valley Development reported 3,509 MWh (3.51 GWh) of net generation in 2025, a 25.0% capacity factor on 1.6 MW of nameplate capacity.
Where is Marsh Valley Development?
Marsh Valley Development is in Bannock County, Idaho, at 42.6260, −112.1493. It is in the PacifiCorp - East balancing area (PACE).
Who operates Marsh Valley Development?
EIA-860M for August 2026 lists Marsh Valley Development Inc as the operator (EIA operator ID 11716). The operator is not always the owner.
When did Marsh Valley Development start operating?
Its first generator began operating in April 1993, 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