Summary of Electricity Activity in Pima County, AZ
Summary of Pima County, AZ Generation
Pima County, AZ is ranked #415 out of 2,164 U.S. counties nationwide and #6 out of 13 Arizona counties in terms of total annual net electricity generation.
| Annual Generation | 2.8 TWh |
|---|---|
| Annual Consumption | 25.8 M MMBtu |
| Last Update | Sep 2025 |
| Power Plants | 39 |
| Companies on File | 21 |
Map of Top Producing Plants in Pima County, AZ
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Annual Net Generation From natural gas power
1.9 TWh
National Rank in Terms of natural gas Net Electricity Generation
#255 /929 U.S. Counties
State Rank in Terms of natural gas Net Electricity Generation
#4 /8 Arizona Counties
Monthly Net Generation for Pima County, AZ
Net Generation by Fuel Source
Net Generation by Fuel Source Breakdown
| State Rank | National Rank | Generation | Fuel Consumption | |
|---|---|---|---|---|
| All | #6 / 13 | #415 / 2164 | 2.84 TWh | 25.84 M MMBtu |
| Natural Gas | #4 / 8 | #255 / 929 | 1.94 TWh | 22.54 M MMBtu |
| Solar | #4 / 11 | #57 / 1233 | 921.84 GWh | 3.31 M MMBtu |
| Distillate Fuel Oil | #6 / 7 | #649 / 737 | 17.62 MWh | 354 MMBtu |
Power Plants in Pima County, AZ
| Plant | Utility Name | Generation | Consumption | Fuel Types |
|---|---|---|---|---|
| H Wilson Sundt Generating Station | Tucson Electric Power Co | 1.8 TWh | 21.2 M MMBtu | Natural Gas |
| Wilmot Energy Center LLC | Wilmot Energy Center LLC | 272.4 GWh | 1.0 M MMBtu | Solar |
| Serrano | Serrano Solar, LLC | 250.5 GWh | 894.3 k MMBtu | Solar |
| Avalon Solar | Arevon Energy, Inc. | 64.6 GWh | 233.6 k MMBtu | Solar |
| Avra Valley Solar | Solar Avra Valley LLC | 62.5 GWh | 224.0 k MMBtu | Solar |
| Picture Rocks Solar, LLC | MN8 Energy LLC | 49.8 GWh | 178.9 k MMBtu | Solar |
| Cogeneration 1 | University of Arizona | 47.8 GWh | 634.0 k MMBtu | Natural Gas |
| Avalon Solar II | Avalon Solar Partners II, LLC | 43.8 GWh | 157.3 k MMBtu | Solar |
| Cogeneration 2 | University of Arizona | 40.9 GWh | 562.2 k MMBtu | Natural Gas |
| Raptor Ridge | Tucson Electric Power Co | 33.8 GWh | 122.3 k MMBtu | Solar |
| Davis Monthan AFB (AZ) West Airfield | MN8 Energy LLC | 30.2 GWh | 109.2 k MMBtu | Solar |
| Valencia Solar | Big Sky Wind, LLC | 24.6 GWh | 88.8 k MMBtu | Solar |
| Tech Park Solar | Big Sky Wind, LLC | 11.8 GWh | 42.6 k MMBtu | Solar |
| RE Ajo 1 LLC | Duke Energy Renewables Services | 8.9 GWh | 32.3 k MMBtu | Solar |
| Prairie Fire | Tucson Electric Power Co | 7.8 GWh | 28.8 k MMBtu | Solar |
| Gato Montes Solar, LLC | Duke Energy Renewables Services | 7.4 GWh | 26.6 k MMBtu | Solar |
| Amazon TUS2 | SkyHigh 2 Solar | 5.5 GWh | 19.8 k MMBtu | Solar |
| Iron Horse Battery Storage Hybrid | Big Sky Wind, LLC | 4.7 GWh | 17.0 k MMBtu | Solar |
| FRB Solar Farm | FRB Solar LLC | 4.1 GWh | 14.4 k MMBtu | Solar |
| Pima Community College NW | Onyx Asset Services Group | 3.0 GWh | 11.0 k MMBtu | Solar |
| Pima Community College - East Campus | Tesla Inc. | 2.8 GWh | 9.9 k MMBtu | Solar |
| Actus Lend Lease DMAFB | Tesla Inc. | 2.5 GWh | 9.1 k MMBtu | Solar |
| Demoss Petrie | Tucson Electric Power Co | 2.5 GWh | 36.6 k MMBtu | Natural Gas |
| North Loop | Tucson Electric Power Co | 2.5 GWh | 56.0 k MMBtu | Natural Gas |
| Canyon Del Oro High School Solar | Luminace Solar Arizona 2, LLC | 2.4 GWh | 8.7 k MMBtu | Solar |
| TJX Tucson | SoCore Energy LLC | 2.2 GWh | 7.5 k MMBtu | Solar |
| Pima Community College | Tesla Inc. | 2.1 GWh | 8.2 k MMBtu | Solar |
| Broadway 2 - Tucson Phase II | MN8 Energy LLC | 2.0 GWh | 6.9 k MMBtu | Solar |
| Cogenra - TEP | Terraform Arcadia | 1.9 GWh | 6.8 k MMBtu | Solar |
| Amphitheater High School Solar | Luminace Solar Arizona 2, LLC | 1.8 GWh | 6.7 k MMBtu | Solar |
| Broadway 3 - Tucson Phase I | MN8 Energy LLC | 1.6 GWh | 5.8 k MMBtu | Solar |
| UASTP I | Tucson Electric Power Co | 1.6 GWh | 5.7 k MMBtu | Solar |
| Roger Road WWTP | SunE M5C Holdings LLC | 1.1 GWh | 4.1 k MMBtu | Solar |
| Pima Energy Storage System | Pima Energy Storage System | -579.0 MWh | 0 MMBtu | No Information Available |
| Roadrunner Reserve Phase 1 | Tucson Electric Power Co | -12.0 GWh | 0 MMBtu | No Information Available |
| Ina Road Water Pollution Control Fac | PIMA County Wastewater Manage | 0.0 Wh | 0 MMBtu | No Information Available |
| New Cornelia Branch Power Plant | Phelps Dodge Mining Co | 0.0 Wh | 0 MMBtu | No Information Available |
| TAA Solar Facility | Tucson Electric Power Co | 0.0 Wh | 0 MMBtu | No Information Available |
| UASTP II | Tucson Electric Power Co | 0.0 Wh | 0 MMBtu | No Information Available |
Electricity Generation for Neighboring Counties
| National Rank | County | Net Generation | # Power Plants |
|---|---|---|---|
| #1641 | Gila County | 50.2 GWh | 2 |
| #1 | Maricopa County | 81.0 TWh | 88 |
| #238 | Pinal County | 5.8 TWh | 26 |
| #1984 | Santa Cruz County | 4.8 GWh | 2 |
* Net Generation data is based on the last 12 months since Sep 2025
Electricity Generation for Cities Located in Pima County, AZ
| State Rank | City | Net Generation | # Power Plants |
|---|---|---|---|
| #53 | Ajo, AZ | 8.9 GWh | 2 |
| #28 | Marana, AZ | 362.8 GWh | 3 |
| #57 | Oro Valley, AZ | 2.4 GWh | 1 |
| #46 | Sahuarita, AZ | 43.8 GWh | 1 |
| #14 | Tucson, AZ | 2.4 TWh | 32 |
* Net Generation data is based on the last 12 months since Sep 2025