Headgate Rock — Plant Summary
- EIA Plant ID
- 7179
- Capacity
- 19.5 MW
- Primary Fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Status
- Operating
- Location
- La Paz, AZ
- Operating Since
- 1993
- Generators
- 3
- Operator
- Colorado River Indian Irr Proj
- Parent Company
- —
- Annual Generation
- 35,773 MWh
- Capacity Factor
- 20.9%
- Balancing Authority
- Western Area Power Administration - Desert Southwest Region
- ISO/RTO
- —
- NERC Region
- WECC
Headgate Rock
OperatingHydro
Ranked #8 of 11 Hydro plants in AZ#488 of 1454 nationally
19.5 MW Hydro operating in La Paz, AZ — Western Area Power Administration - Desert Southwest Region
EIAWD
19.5 MW
Nameplate Capacity
3
Generators
units
Conventional Hydroelectric
Technology
1993
Operating Since
Location
Coordinates
34.1682, -114.2774
County
La Paz, AZ
Nearby Plants
- Parker DamHydro120 MW · 19.0 km
- Vidal Energy CenterBESS320 MW · 20.1 km
- La Paz Solar TowerSolar200 MW · 27.9 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Colorado River Indian Irr Proj | — | — |
| Owner(s) | Colorado River Indian Irr Proj | — | — |
| Status | Operating | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
Headgate Rock is a 19.5 MW hydroelectric power plant located in La Paz County, Arizona. The plant began operating in 1993 and utilizes conventional hydroelectric technology. It consists of 3 generators and is owned and operated by the Colorado River Indian Irrigation Project. Headgate Rock is the 8th largest hydroelectric plant in Arizona (out of 11) and ranks 496th nationally (out of 1464).
The plant's primary fuel source is water (WAT). In the most recent year of reported data, Headgate Rock generated 35,773 MWh of electricity, achieving a capacity factor of 20.9%. The balancing authority for the plant is the Western Area Power Administration - Desert Southwest Region, and it operates within the WECC NERC region.
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
69 kV
Regulatory Status
RE
Entity Type
Federal
Sector
Electric Utility
Generation
2.2K MWh
Latest Month
35.8K MWh
Annual Generation
20.9%
Capacity Factor
Jan 2022 – Dec 2024
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 (5)Beta
General
Parker 'tornado' uproots trees
A severe storm hit the Parker area the morning of Monday, Oct. 13. While it didn't last long, it dumped a lot of water on the area and also brought.
Havasu News·4 months ago
Hazards·tornado
Parker 'tornado' uproots trees
A severe storm hit the Parker area the morning of Monday, Oct. 13. While it didn't last long, it dumped a lot of water on the area and also brought.
Havasu News·4 months ago
Industry·other
Some of Arizona’s Most Valuable Water Could Soon Hit the Market
PARKER, Arizona—South of Headgate Rock Dam, beyond riverbanks lined with willow and mesquite, the broad floodplain of the Colorado River...
Inside Climate News·1 years ago
Grid·outage
Failure at Headgate Rock Dam leaves Parker Strip high and dry
Residents who live on the Colorado River north of Parker woke up to an unpleasant surprise Wednesday, Aug. 31. The water levels on the river...
Havasu News·3 years ago
Last updated 2026-03-26
View all 5 articles