Glen Canyon Dam
Glen Canyon Dam is a hydroelectric plant in Coconino County, Arizona, operated by U S Bureau of Reclamation. It ranks fourth by nameplate capacity among Arizona’s 191 power plants. Among the 1,390 hydroelectric plants in the country it is the seventh-largest. It is the biggest of Arizona’s 8 hydroelectric plants. Within the WAPA Desert Southwest balancing area it is the largest of 24 plants.
Nameplate capacity, 2025
1,312 MW
1,312 MW net summer capacity
8 operable units
- Hydro1,312 MW100%
Unit by unit, 1964 to 2025
operating in 2025bar height follows unit size
Unit 1 Hydro, 165 MW, 1964
Unit 2 Hydro, 165 MW, 1964
Unit 3 Hydro, 165 MW, 1964
Unit 4 Hydro, 165 MW, 1965
Unit 5 Hydro, 165 MW, 1965
Unit 6 Hydro, 165 MW, 1965
Unit 7 Hydro, 157 MW, 1966
Unit 8 Hydro, 165 MW, 1966
Among Arizona’s plants
Largest plants in the state by nameplate capacity, with the plants ranked next to this one.
- 1Palo Verde4,210 MW
- 2Springerville1,779 MW
- 3Santan1,326 MW
- 4Glen Canyon Damthis plant
- 5Harquahala Generating Project1,277 MW
- 6West Phoenix1,207 MW
Other rankings
- All US power plants
- 180th of 14,286
- Plants run by U S Bureau of Reclamation
- 2nd of 57
- Biggest single unit, among Arizona’s plants
- 43rd of 191
Operable units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Hydro | 165 MW | 165 MW | 1964 | Operating |
| 2 | Hydro | 165 MW | 165 MW | 1964 | Operating |
| 3 | Hydro | 165 MW | 165 MW | 1964 | Operating |
| 4 | Hydro | 165 MW | 165 MW | 1965 | Operating |
| 5 | Hydro | 165 MW | 165 MW | 1965 | Operating |
| 6 | Hydro | 165 MW | 165 MW | 1965 | Operating |
| 7 | Hydro | 157 MW | 157 MW | 1966 | Operating |
| 8 | Hydro | 165 MW | 165 MW | 1966 | Operating |
Grid and site
- Balancing area
- WAPA Desert Southwest
- Reliability region
- Western Electricity Coordinating Council
- Highest grid connection voltage
- 345 kV
- Water source
- Lake Powell - Colorado River
- Nearest town on record
- Page
- Operator type
- Utility
- Coordinates
- 36.937°N, 111.484°W
Closest plants
| Plant | Runs on | Capacity | Distance |
|---|---|---|---|
| Kayenta Solar Project | Solar | 55.3 MW | 68.4 mi east |
| Boulder | Hydroelectric | 4.2 MW | 72.5 mi north |
| Babbitt Ranch Energy Center | Wind | 163 MW | 92.9 mi south |
| Hurricane City Power | Natural gas | 15.1 MW | 101.5 mi west |
| Buckhorn Solar Plant | Solar | 3 MW | 101.6 mi northwest |
| Utah Red Hills Renewable Energy Park | Solar | 80 MW | 101.7 mi northwest |
| Quail Creek Hydro Plant #1 | Hydroelectric | 2.3 MW | 104.8 mi west |
| Quichapa 2 | Solar | 3 MW | 106.4 mi northwest |