Power plant · Arizona, United States
Cholla Power Plant
Cholla Power Plant is a closed coal power plant in Arizona, United States, with 1,129 MW of capacity, operated by Arizona Public Service.
Grid connection
It closed in 2025, which freed up a 1,129 MW grid connection at 500 kV to the grid of Arizona Public Service, unless it has been reassigned since.
Facts
Every value links to its source, and to the source's own record where it has one. Licences and last-checked dates are per row.
| Fact | Value | Source |
|---|---|---|
| Location | Arizona | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Status | Closed | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Start year | 1962 | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| End year | 2025 | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Operator | Arizona Public Service | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Capacity | 1,129 MW (nameplate of its retired generators) | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Technology | Conventional Steam Coal | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Grid operator | Arizona Public Service | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Voltage | 500 kV | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
| Coordinates | 34.9394, -110.3033 | EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026 |
Research on this power plant and its operator.Who owns it up to the parent company, its grid connection and planning status, and an introduction to the operator.
Request researchHow it compares
Cholla is the 8th-largest of 33 power plants in Arizona and the 271st-largest of 1,009 in the United States by capacity; its 1,129 MW is 0.12% of the 917,512 MW we hold for the United States. Ranks and totals cover the power plants in our data that report their capacity, not every one in existence. Power plants planned, permitted or under construction are ranked apart.
| Within | Rank | Total | Share |
|---|---|---|---|
| Arizona | 8th of 33 | 32,190 MW | 3.5% |
| United States | 271st of 1,009 | 917,512 MW | 0.12% |
| All power plants in our data | 409th of 15,800 | 1,923,633 MW | <0.1% |
Timeline
Dated facts about this power plant from its sources, oldest first.
- Started operating
- Retired
Nearby
Within 50 km of this power plant: 41 water rights, measured from the coordinates in the facts above. The table shows the nearest 3.
| Name | Kind | Size | Status | Distance |
|---|---|---|---|---|
| Ben Hunt water right 36-031612.0000 | Water right | — | — | 3.0 km |
| Unnamed water right 36-045286.0000 | Water right | — | — | 4.5 km |
| Little Colorado water right 36-037512.0000 | Water right | — | — | 6.3 km |
Operator, grid operator and place
More from Arizona Public Service
- Palo Verde4,210 MW
- Navajo2,409 MW
- Four Corners1,636 MW
- Saddleback Generation Station1,250 MW · planned
- West Phoenix1,207 MW
- Red Hawk1,127 MW
- Maricopa Solar1,100 MW · under construction
- Snowflake A Solar and BESS950 MW · planned
Other power plants in Arizona
- Palo Verde4,210 MW
- Navajo2,409 MW
- Springerville1,779 MW
- Santan1,326 MW
- Glen Canyon Dam1,312 MW
- Harquahala Generating Project1,277 MW
- West Phoenix1,207 MW
- Red Hawk1,127 MW
Data on this page
- Arizona Department of Water Resources water rights (surface water filings and irrigation grandfathered rights). Arizona Department of Water Resources water rights (surface water filings and irrigation grandfathered rights), Restricted.
- Contains public sector information licensed under the Open Government Licence v3.0. DUKES 5.11: Power stations in the United Kingdom, Open Government Licence v3.0.
- Contains public sector information licensed under the Open Government Licence v3.0. DESNZ Renewable Energy Planning Database (REPD), Open Government Licence v3.0.
- Source: U.S. Energy Information Administration (Sep 2026). EIA-860 / 860M / 923, Public domain.
- JRC Open Power Plants Database (JRC-PPDB-OPEN), European Commission, Joint Research Centre. JRC Open Power Plants Database (JRC-PPDB-OPEN), CC BY 4.0.
- Bundesnetzagentur, Marktstammdatenregister. Marktstammdatenregister, DL-DE-BY-2.0.
- Dutch power station owners' and operators' pages. Dutch power station owners' and operators' pages, Facts only, each linked to its page.
- Contains public sector information licensed under the Open Government Licence v3.0. Planning Inspectorate: National Infrastructure Projects, Open Government Licence v3.0.
- RVO SDE(+)(+) projecten in beheer and SDE viewer. RVO SDE(+)(+) projecten in beheer and SDE viewer, Free reuse, no attribution required.
- Wikidata. Wikidata, CC0 1.0.