Siphon Power Project
Hydro power plant · Deschutes County, Oregon
Nameplate capacity
5.4 MW
Rank in Oregon
#166
of 301 plants
In service since
1989
August 1989
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Central Oregon Irrigation Dist
- County
- Deschutes County
- Generating units
- 2
- Share of state capacity
- 0.03%
- Rank among hydro plants in Oregon
- #43 of 63
- EIA plant code
- 50980
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| GEN1 | Conventional Hydroelectric | 2.7 MW | 2.7 MW | 1989 | Operating |
| GEN2 | Conventional Hydroelectric | 2.7 MW | 2.7 MW | 1989 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Oregon
| NorWest Energy 4, LLC | Solar | 5.6 MW |
| Oregon State University Energy Center | Natural gas | 5.5 MW |
| Butter Creek Power LLC | Wind | 5.0 MW |
| Juniper Ridge Hydroelectric Project | Hydro | 5.0 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 5.4 MW solar plant and a 5.4 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Oregon power plants · What Oregon actually generates