Dalles Dam North Fishway Project
Hydro power plant · Wasco County, Oregon
Nameplate capacity
6.5 MW
Rank in Oregon
#159
of 301 plants
In service since
1991
May 1991
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Northern Wasco County PUD
- County
- Wasco County
- Generating units
- 1
- Share of state capacity
- 0.03%
- Rank among hydro plants in Oregon
- #42 of 63
- EIA plant code
- 7431
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | 6.5 MW | 5.0 MW | 1991 | 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
| Prospect 3 | Hydro | 7.2 MW |
| Ward Butte Windfarm LLC | Wind | 6.6 MW |
| Douglas County Forest Products | Other | 6.3 MW |
| Grove Solar Center, LLC | Solar | 6.0 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 6.5 MW solar plant and a 6.5 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