Siphon Power Project
Hydro power plant in Deschutes County, Oregon. 5.4 MW of nameplate capacity across 2 generators, operated by Central Oregon Irrigation Dist.
Also known as EIA plant 50980
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 5.4 MWNameplate
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- August 1989First generator online
- Operator
- Central Oregon Irrigation DistEIA operator ID 3220
- Grid
- PACWBalancing authority PACW
- Price nodes
- None linkedNo verified ISO node
- Location
- Deschutes County, OR44.0330, −121.3297
- EIA plant ID
- 50980EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Siphon Power Project produces
Free · EIA-923Net generation, 2025
19.0 GWh
18,977 MWh, final
Capacity factor, 2025
40.1%
2024: 33.0%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
13.3–26.4
GWh a year. Low 2022, high 2017
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | 21,018 | Not reported | 12 of 12 |
| 2002 | 15 | Not reported | 12 of 12 |
| 2003 | 18 | Not reported | 12 of 12 |
| 2004 | 17 | Not reported | 12 of 12 |
| 2005 | 14 | Not reported | 12 of 12 |
| 2006 | 22 | Not reported | 12 of 12 |
| 2007 | 25 | Not reported | 12 of 12 |
| 2008 | 20,366 | Not reported | 12 of 12 |
| 2009 | 28,427 | Not reported | 12 of 12 |
| 2010 | 22,111 | 46.7% | 12 of 12 |
| 2011 | 28,661 | 60.6% | 12 of 12 |
| 2012 | 38,646 | 81.5% | 12 of 12 |
| 2013 | 26,034 | 55.0% | 12 of 12 |
| 2014 | 25,578 | 54.1% | 12 of 12 |
| 2015 | 25,365 | 53.6% | 12 of 12 |
| 2016 | 21,526 | 45.4% | 12 of 12 |
| 2017 | 26,373 | 55.8% | 12 of 12 |
| 2018 | 22,142 | 46.8% | 12 of 12 |
| 2019 | 16,974 | 35.9% | 12 of 12 |
| 2020 | 17,302 | 36.5% | 12 of 12 |
| 2021 | 15,033 | 31.8% | 12 of 12 |
| 2022 | 13,294 | 28.1% | 12 of 12 |
| 2023 | 15,572 | 32.9% | 12 of 12 |
| 2024 | 15,639 | 33.0% | 12 of 12 |
| 2025 | 18,977 | 40.1% | 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. 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 |
|---|---|---|---|
| GEN1 | Conventional Hydroelectric | 2.7 | August 1989 |
| GEN2 | Conventional Hydroelectric | 2.7 | August 1989 |
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 Central Oregon Irrigation Dist 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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Power plants near Siphon Power Project
More plants operated by Central Oregon Irrigation Dist
Questions about Siphon Power Project
How much power does Siphon Power Project produce?
Siphon Power Project reported 18,977 MWh (19.0 GWh) of net generation in 2025, a 40.1% capacity factor on 5.4 MW of nameplate capacity.
Where is Siphon Power Project?
Siphon Power Project is in Deschutes County, Oregon, at 44.0330, −121.3297. It is in the PacifiCorp - West balancing area (PACW).
Who operates Siphon Power Project?
EIA-860M for August 2026 lists Central Oregon Irrigation Dist as the operator (EIA operator ID 3220). The operator is not always the owner.
When did Siphon Power Project start operating?
Its first generator began operating in August 1989, 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