Rocky Reach
Rocky Reach is a hydroelectric plant in Chelan County, Washington, operated by PUD No 1 of Chelan County (WA). It ranks third by nameplate capacity among Washington’s 138 power plants. Among the 1,390 hydroelectric plants in the country it is the sixth-largest.
Nameplate capacity, 2025
1,349 MW
1,254 MW net summer capacity
11 operable units
- Hydro1,349 MW100%
Unit by unit, 1961 to 2025
operating in 2025bar height follows unit size
Unit C-1 Hydro, 114 MW, 1961
Unit C-2 Hydro, 114 MW, 1961
Unit C-3 Hydro, 114 MW, 1961
Unit C-4 Hydro, 114 MW, 1961
Unit C-5 Hydro, 114 MW, 1961
Unit C-6 Hydro, 114 MW, 1961
Unit C-7 Hydro, 114 MW, 1961
Unit C-8 Hydro, 138 MW, 1973
Unit C-9 Hydro, 138 MW, 1973
Unit C-10 Hydro, 138 MW, 1974
Unit C-11 Hydro, 138 MW, 1974
Among Washington’s plants
Largest plants in the state by nameplate capacity, with the plants ranked next to this one.
- 1Grand Coulee6,809 MW
- 2Chief Joseph2,456 MW
- 3Rocky Reachthis plant
- 4Wanapum1,220 MW
- 5Columbia Generating Station1,200 MW
Other rankings
- All US power plants
- 173rd of 14,286
- Hydroelectric plants in Washington
- 3rd of 72
- Plants in the Public Utility District No. 1 of Chelan County balancing area
- 1st of 3
- Plants run by PUD No 1 of Chelan County (WA)
- 1st of 3
- Biggest single unit, among Washington’s plants
- 24th of 138
Operable units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| C-1 | Hydro | 114 MW | 105 MW | 1961 | Operating |
| C-2 | Hydro | 114 MW | 105 MW | 1961 | Operating |
| C-3 | Hydro | 114 MW | 105 MW | 1961 | Operating |
| C-4 | Hydro | 114 MW | 105 MW | 1961 | Operating |
| C-5 | Hydro | 114 MW | 105 MW | 1961 | Operating |
| C-6 | Hydro | 114 MW | 105 MW | 1961 | Operating |
| C-7 | Hydro | 114 MW | 105 MW | 1961 | Operating |
| C-8 | Hydro | 138 MW | 130 MW | 1973 | Operating |
| C-9 | Hydro | 138 MW | 130 MW | 1973 | Operating |
| C-10 | Hydro | 138 MW | 130 MW | 1974 | Operating |
| C-11 | Hydro | 138 MW | 130 MW | 1974 | Operating |
Grid and site
- Balancing area
- Public Utility District No. 1 of Chelan County
- Reliability region
- Western Electricity Coordinating Council
- Highest grid connection voltage
- 230 kV
- Water source
- Columbia River
- Nearest town on record
- Wenatchee
- Operator type
- Utility
- Coordinates
- 47.534°N, 120.295°W
Closest plants
| Plant | Runs on | Capacity | Distance |
|---|---|---|---|
| Rock Island | Hydroelectric | 629 MW | 16.1 mi southeast |
| Chelan | Hydroelectric | 59.2 MW | 24.6 mi northeast |
| Sagebrush Power Partners | Wind | 101 MW | 33.1 mi southwest |
| Wild Horse | Wind | 273 MW | 34.6 mi south |
| Swauk Wind LLC | Wind | 4.3 MW | 34.7 mi southwest |
| Urtica Solar Project | Solar | 5 MW | 34.8 mi southwest |
| Wells | Hydroelectric | 867 MW | 34.9 mi northeast |
| Vantage Wind Energy LLC | Wind | 90 MW | 40.4 mi south |