3rd largest plant in Arizona · 108th nationally
Springerville is a coal power plant in Arizona with a nameplate capacity of 1,779 MW. It generates roughly 6.7M MWh per year — enough to power about 641,301 average U.S. homes.
Its capacity factor of 43% puts it in the middle range — running steadily but not full-time. At 2281 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.
Ghost bars are each month's theoretical maximum (1,779 MW nameplate × hours in the month). Filled bars are actual net generation reported to EIA Form 923. The gap between them is capacity factor made visible.
| Plant Name | Springerville |
|---|---|
| Operator | Tucson Electric Power Co |
| City | Springerville |
| County | Apache County |
| State | Arizona |
| ZIP | 85938 |
| Coordinates | 34.31860, -109.16390 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 3 | Conventional Steam Coal | Subbituminous Coal | 458 MW | Operating | 2006 |
| 4 | Conventional Steam Coal | Subbituminous Coal | 458 MW | Operating | 2009 |
| 1 | Conventional Steam Coal | Subbituminous Coal | 425 MW | Operating | 1985 |
| 2 | Conventional Steam Coal | Subbituminous Coal | 425 MW | Operating | 1990 |
| 5 | Conventional Steam Coal | Subbituminous Coal | 400 MW | Cancelled | — |
| WMS | Solar Photovoltaic | Solar | 8.3 MW | Operating | 2014 |
| SGSS | Solar Photovoltaic | Solar | 3.7 MW | Operating | 2001 |
| SGSS1 | Solar Photovoltaic | Solar | 1.4 MW | Operating | 2010 |
| Owner | Location | Share |
|---|---|---|
| Springerville Unit 3 Holding Llc | Phoenix, AZ | 10000.0% |
| Salt River Project | Phoenix, AZ | 10000.0% |
Ownership reported to EIA Form 860. Percentages reflect reported generator-level ownership share, averaged when a plant has multiple generators.
| CO₂ | 7.7M metric tons |
|---|---|
| SO₂ | 5.7k metric tons |
| NOₓ | 4.2k metric tons |
| CO₂ Rate | 2281 lb/MWh |
Annual totals and CO₂ rate reported by EPA eGRID for 2023. Reference averages are approximate U.S.-wide figures from the same dataset.
| NERC Region | WECC |
|---|---|
| Balancing Authority | Tucson Electric Power Company |
Coal plants burn pulverized coal to boil water and spin steam turbines. They emit substantial CO₂, SO₂, and NOₓ along with mercury and particulate matter. Modern units include scrubbers and selective catalytic reduction; older units are increasingly being retired or converted to natural gas as economics shift.