Hoover Dam (AZ) — Plant Summary
- EIA Plant ID
- 8902
- Capacity
- 1039.4 MW
- Primary Fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Status
- Operating
- Location
- Mohave, AZ
- Operating Since
- 1936
- Generators
- 10
- Operator
- U S Bureau of Reclamation
- Parent Company
- —
- Annual Generation
- 927,107 MWh
- Capacity Factor
- 10.2%
- Balancing Authority
- Western Area Power Administration - Desert Southwest Region
- ISO/RTO
- —
- NERC Region
- WECC
Hoover Dam (AZ)
OperatingHydro
Ranked #2 of 11 Hydro plants in AZ#20 of 1454 nationally
1039.4 MW Hydro operating in Mohave, AZ — Western Area Power Administration - Desert Southwest Region
EIAGEMWD
1,039.4 MW
Nameplate Capacity
10
Generators
units
Conventional Hydroelectric
Technology
1936
Operating Since
Location
Coordinates
36.0155, -114.7380
County
Mohave, AZ
Nearby Plants
- Hoover Dam (NV)Hydro1039.4 MW · 0.0 km
- Townsite Solar Project HybridBESS270 MW · 16.5 km
- River Mountains SolarSolar14.4 MW · 17.2 km
Ownership & Operator
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | U S Bureau of Reclamation | US Bureau of Reclamation | — |
| Owner(s) | U S Bureau of Reclamation | US Bureau of Reclamation [100%] | — |
| Status | Operating | operating | — |
Ownership Chain
GEM identifies the owner as US Bureau of Reclamation [100%]
This entity is not yet in the GEM ownership database — chain unavailable.
About
Hoover Dam is a hydroelectric power plant located in Mohave County, Arizona. The plant, owned and operated by the U.S. Bureau of Reclamation, began operating in 1936 and has a total capacity of 1039.4 MW derived from 10 generators. The primary fuel source is water (WAT). Hoover Dam is the second-largest hydroelectric plant in Arizona (out of 4) and ranks 20th nationally (out of 194).
In the most recent year with available data, Hoover Dam generated 927,107 MWh of electricity, operating at a capacity factor of 10.2%. The plant is located within the Western Electricity Coordinating Council (WECC) NERC region and its balancing authority is the Western Area Power Administration - Desert Southwest Region. Recent news coverage has mentioned hazards at the plant.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Western Area Power Administration - Desert Southwest Region
Grid Voltage
230 kV
Regulatory Status
RE
Entity Type
Federal
Sector
Electric Utility
Generation
60.5K MWh
Latest Month
927.1K MWh
Annual Generation
10.2%
Capacity Factor
Jan 2023 – Dec 2025
Financial Data
No financial data available for this plant.
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (1)Beta
Hazards·flooding
Quantifying Dam-Induced Fluctuations in Streamflow Frequencies Across the Colorado River Basin
This study advances the notion that dams fundamentally alter river flow regimes across multiple frequencies and with varying amplitudes over time and space.
AGU Publications·4 years ago
Last updated 2026-03-14
View all articles