How many solar farms are in Arizona?

Arizona has 128 operating utility-scale solar farms with 9.1 GW of capacity, according to the EIA's monthly survey of power plants.

What is the largest solar farm in Arizona?

Maricopa Solar in Maricopa County, Arizona is the largest, at 550 MW. It came online in 2026.

How many solar farms were built in Arizona in 2025?

9 solar farms came online in Arizona in 2025, with 1,535 MW of capacity.

Who is developing solar farms in Arizona?

Interconnection queues list each project under a project company, not the developer behind it. Cleanview researches the developer of every project and has them on paid plans.

Solar farms in Arizona

Arizona has 128 operating solar farms with 9.1 GW of capacity. 9 came online in 2025.

Operating128

See planned solar farms in Arizona

Updated monthly. Last updated November 2026.

Under 50 MW50–249 MW250 MW and up

Updated monthly. Last updated November 2026.

Arizona had 66 solar farms online in 2016 and 128 in 2026

102

108

117

128

2016’162017’172018’182019’192020’202021’212022’222023’232024’242025’252026’26

Solar farms online at the end of each year. Source: EIA-860M, compiled by Cleanview.

The 10 largest solar farms in Arizona

Operating, by capacity

#	Solar farm	County	Year online	Capacity
1	Maricopa Solar	Maricopa County	2026	550 MW
2	Centennial Flats	La Paz County	2026	500 MW
3	Sonoran Solar Energy	Maricopa County	2023	490 MW
4	Agua Caliente Solar Project	Yuma County	2014	348 MW
5	Eleven Mile Solar Center	Pinal County	2024	300 MW
6	McFarland B Solar and Storage	Yuma County	2024	300 MW
7	Sun Streams 4	Maricopa County	2025	300 MW
8	Harquahala 2	Maricopa County	2025	300 MW
9	Box Canyon (AZ)	Pinal County	2025	300 MW
10	Solana Generating Station	Maricopa County	2013	280 MW

Solar farms that came online most recently in Arizona

Newest first

#	Solar farm	County	Year online	Capacity
1	Centennial Flats	La Paz County	2026	500 MW
2	ATLAS Solar VI, LLC	La Paz County	2026	100 MW
3	Maricopa Solar	Maricopa County	2026	550 MW
4	ATLAS Solar V, LLC	La Paz County	2026	200 MW
5	Catclaw Solar	Maricopa County	2026	200 MW
6	Papago PV	Maricopa County	2026	150 MW
7	Arlington Valley Solar Energy I	Maricopa County	2026	127 MW
8	Wilmot Energy Center II	Pima County	2026	100 MW
9	Sun Pond	Maricopa County	2026	85 MW
10	Babacomari Solar	Cochise County	2026	160 MW

The developer behind each project is on paid plans. See plans

How Cleanview tracks solar farms

Operating solar farms come from the EIA's monthly survey of power plants. Planned projects come from the grid operators' interconnection queues. We research who is developing each one, since a queue lists a project company, not its owner.

Questions about solar farms in Arizona

How many solar farms are in Arizona?: Arizona has 128 operating utility-scale solar farms with 9.1 GW of capacity, according to the EIA's monthly survey of power plants.
What is the largest solar farm in Arizona?: Maricopa Solar in Maricopa County, Arizona is the largest, at 550 MW. It came online in 2026.
How many solar farms were built in Arizona in 2025?: 9 solar farms came online in Arizona in 2025, with 1,535 MW of capacity.
Who is developing solar farms in Arizona?: Interconnection queues list each project under a project company, not the developer behind it. Cleanview researches the developer of every project and has them on paid plans.