How many natural gas power plants are planned in Arizona?

Developers have proposed 22 natural gas power plants in Arizona with 2.2 GW of capacity, according to the grid operators' interconnection queues. Most queue projects are never built.

What is the largest planned natural gas power plant in Arizona?

Saddleback Generation Station in Maricopa County, Arizona is the largest planned, at 375 MW. It is expected to come online in 2030.

Who is developing natural gas power plants 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.

Planned natural gas power plants in Arizona

Developers have proposed 22 natural gas power plants in Arizona with 2.2 GW of capacity, in the grid operators' interconnection queues.

Planned22

See operating natural gas power plants in Arizona

Updated monthly. Last updated November 2026.

Under 250 MW250–999 MW1 GW and up

Updated monthly. Last updated November 2026.

More planned natural gas power plants in Arizona are expected online in 2027 than in any other year

2026’262027’272028’282029’292030’302031’312032’322033’33

Planned natural gas power plants by the year they're expected online. Source: the grid operators' interconnection queues, compiled by Cleanview.

The 10 largest planned natural gas power plants in Arizona

Planned, by capacity

#	Natural gas power plant	County	Expected online	Capacity
1	Saddleback Generation Station	Maricopa County	2030	375 MW
2	Saddleback Generation Station	Maricopa County	2030	375 MW
3	Saddleback Generation Station	Maricopa County	2030	250 MW
4	Saddleback Generation Station	Maricopa County	2030	250 MW
5	Mohave Energy Park	Mohave County	2027	61 MW
6	Mohave Energy Park	Mohave County	2027	61 MW
7	Mohave Energy Park	Mohave County	2027	61 MW
8	Mohave Energy Park	Mohave County	2027	61 MW
9	Coolidge Generation Station	Pinal County	2027	50 MW
10	Coolidge Generation Station	Pinal County	2027	50 MW

Planned natural gas power plants expected online soonest in Arizona

In the next 18 months, soonest first

#	Natural gas power plant	County	Expected online	Capacity
1	Coolidge Generation Station	Pinal County	2027	50 MW
2	Coolidge Generation Station	Pinal County	2027	50 MW
3	Coolidge Generation Station	Pinal County	2027	50 MW
4	Coolidge Generation Station	Pinal County	2027	50 MW
5	Coolidge Generation Station	Pinal County	2027	50 MW
6	Coolidge Generation Station	Pinal County	2027	50 MW
7	Red Hawk	Maricopa County	2027	49 MW
8	Red Hawk	Maricopa County	2027	49 MW
9	Red Hawk	Maricopa County	2027	49 MW
10	Red Hawk	Maricopa County	2027	49 MW

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

How Cleanview tracks natural gas power plants

Operating natural gas power plants 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 natural gas power plants in Arizona

How many natural gas power plants are planned in Arizona?: Developers have proposed 22 natural gas power plants in Arizona with 2.2 GW of capacity, according to the grid operators' interconnection queues. Most queue projects are never built.
What is the largest planned natural gas power plant in Arizona?: Saddleback Generation Station in Maricopa County, Arizona is the largest planned, at 375 MW. It is expected to come online in 2030.
Who is developing natural gas power plants 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.