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- Combustion
- Wind & solar
- Storage
- In development
- Under construction
- Operating
- 10 · 100 · 1,000 MW
Map
- Combustion
- Wind & solar
- Storage
- In development
- Under construction
- Operating
Sundance: location and 5 exact-grade projects within 15 mi. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Sundance
Power plant · Gas, combustion turbine
Key facts
Power plant · Gas, combustion turbineran 5% of 2025 Operating- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 2002
- Net generation, 2025
- 313,093 MWh
- Grid
- 230 kV to WAPA-- Western Area Power Administration (WALC)
- Location
- Pinal County, Arizona
- Operated by
- Arizona Public Service Co
Output
- Gas
Details
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- Technology
- Gas, combustion turbine source: “Natural Gas Fired Combustion Turbine”
- Age
- 24 years since 2002
- Unused energy
- 5,775 GWh 2025Unused energyA lead, not a guarantee: MW × hours × (1 − capacity factor) for the latest year (EIA-923), gas, coal and oil plants only. Air-permit run-hour caps, heat rate (cost to run) and capacity-market or reliability obligations can rule it out.
- Heat rate
- 10,488 Btu/kWh 2025
All 8 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory
| Attribute | Value |
|---|---|
| Gem |
|
| Grid |
|
| EPA greenhouse gas reporting (GHGRP) |
|
| Fuel burned (MMBtu), 2025 | 3,283,757 |
| Capacity factor, 2025 | 0.051 |
| Heat rate (Btu/kWh), 2025 | 10,488.1 |
| Net generation (MWh), 2025 | 313,093 |
| Balancing authority code | WALC |
Ownership
2 companies2| Company | Role | Share | As of | Source |
|---|---|---|---|---|
| Arizona Public Service Co | Operator | EIA-860M | ||
| PINNACLE WEST CAPITAL CORP | Owner | 100.0% | Dec 31, 2023 | EPA GHGRP |
Timeline
- In service · EIA-860M
Sources
5 sourcesSources EIA-860M · GEM · EIA · EIA-860M Preliminary Monthly Electric Generator Inventory · EPA Greenhouse Gas Reporting Program — facility register with parent-company shares (Envirofacts pub_dim_facility; FLIGHT)
Sources
- EIA-860M
- GEMGlobal Integrated Power Tracker, Global Energy Monitor, September 2026 release (https://globalenergymonitor.org/projects/global-integrated-power-tracker), CC BY 4.0. Modified by Inframation: TransitionZero-sourced rows removed; statuses and technologies mapped to Inframation's vocabulary; figures aggregated. Copyright © Global Energy Monitor. Global Integrated Power Tracker, September 2026 release. Distributed under a Creative Commons Attribution 4.0 International License.
- EIASource: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)
- EIA-860M Preliminary Monthly Electric Generator Inventory
- EPA Greenhouse Gas Reporting Program — facility register with parent-company shares (Envirofacts pub_dim_facility; FLIGHT)
Around this plant
Nearby
within 15 mi| Project | Kind | Away | MW |
|---|---|---|---|
| Coolidge Generation Station Under construction | Gas, combustion turbine | 5.1 mi | 297 |
| Selma Energy Center Under construction | Solar + storage | 6.6 mi | 275 |
| Valley Farms Energy Center Under construction | Storage | 7.8 mi | 400 |
| Kitt Solar Under construction | Solar + storage | 13.5 mi | 200 |
| Sawtooth Solar Filed | Solar + storage | 14.0 mi | 500 |
Sources EIA-860M