Summary of Electricity Activity in Pima County, AZ

Summary of Pima County, AZ Generation

Pima County, AZ is ranked #431 out of 2,155 U.S. counties nationwide and #7 out of 13 Arizona counties in terms of total annual net electricity generation.

Annual Generation	2.7 TWh
Annual Consumption	25.0 M MMBtu
Last Update	Jun 2025
Power Plants	39
Companies on File	21

Map of Top Producing Plants in Pima County, AZ

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Overall National Rank

#431 /2,155 U.S. Counties

In Net Annual Generation

Overall State Rank

#7 /13 Arizona Counties

In Net Annual Generation

Overall Annual Net Geneneration

2.7 TWh

Total Annual Fuel Consumption

25.0 M MMBtu

Electric Companies in Pima County, AZ

Pima County, AZ
Power Plants

Annual Net Generation From natural gas power

1.9 TWh

National Rank in Terms of natural gas Net Electricity Generation

#265 /926 U.S. Counties

State Rank in Terms of natural gas Net Electricity Generation

#5 /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	#7 / 13	#431 / 2155	2.68 TWh	24.98 M MMBtu
Natural Gas	#5 / 8	#265 / 926	1.89 TWh	22.12 M MMBtu
Solar	#4 / 11	#59 / 1216	790.05 GWh	2.86 M MMBtu
Distillate Fuel Oil	#6 / 7	#628 / 737	29.41 MWh	534 MMBtu

* Data is based on 12 months since Jun 2025.

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	20.8 M MMBtu	Natural Gas
Wilmot Energy Center LLC	Wilmot Energy Center LLC	272.5 GWh	1.0 M MMBtu	Solar
Serrano	Serrano Solar, LLC	126.3 GWh	447.5 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	48.0 GWh	635.9 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	40.5 GWh	556.0 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
FRB Solar Farm	FRB Solar LLC	4.1 GWh	14.4 k MMBtu	Solar
Iron Horse Battery Storage Hybrid	Big Sky Wind, LLC	3.7 GWh	13.6 k MMBtu	Solar
Pima Community College NW	Onyx Asset Services Group	3.1 GWh	10.9 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	-499.0 MWh	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
Roadrunner Reserve Phase 1	Tucson Electric Power 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

* Data is based on the last 12 months since Jun 2025.

View All Plants in Arizona

Electricity Generation for Neighboring Counties

National Rank	County	Net Generation	# Power Plants
#1627	Gila County	50.2 GWh	2
#1	Maricopa County	80.4 TWh	88
#254	Pinal County	5.3 TWh	26
#1972	Santa Cruz County	4.8 GWh	2

* Net Generation data is based on the last 12 months since Jun 2025

Electricity Generation for Cities Located in Pima County, AZ

State Rank	City	Net Generation	# Power Plants
#53	Ajo, AZ	8.9 GWh	2
#30	Marana, AZ	238.7 GWh	3
#58	Oro Valley, AZ	2.4 GWh	1
#46	Sahuarita, AZ	43.8 GWh	1
#12	Tucson, AZ	2.3 TWh	31

* Net Generation data is based on the last 12 months since Jun 2025