How many natural gas power plants are planned in MISO?

Developers have proposed 61 natural gas power plants in MISO with 32 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 MISO?

SIOUX in St. Charles County, Missouri is the largest planned, at 2,220 MW. It is expected to come online in 2030.

Who is developing natural gas power plants in MISO?

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 MISO

Developers have proposed 61 natural gas power plants in MISO with 32 GW of capacity, in the grid operators' interconnection queues.

Planned61

See operating natural gas power plants in MISO

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 MISO are expected online in 2030 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 MISO

Planned, by capacity

#	Natural gas power plant	Location	Expected online	Capacity
1	SIOUX	St. Charles County, Missouri	2030	2,220 MW
2	Sugar Creek - Cayuga CT 345.0kV	Vermillion County, Indiana	2030	1,540 MW
3	Other_	Monroe County, Michigan	2030	1,499 MW
4	Other_	Monroe County, Michigan	2030	1,499 MW
5	Majestic-Milan 345 kV Line	Washtenaw County, Michigan	2030	1,414 MW
6	North Madison 345/138 kV	Dane County, Wisconsin	2030	1,203 MW
7	Other_	Kenosha County, Wisconsin	2030	1,203 MW
8	Belle River - Fitz #2 345 kV Line Tap	St. Clair County, Michigan	2021	1,175 MW
9	Austin Substation 345kV Bus	Sangamon County, Illinois	2025	1,165 MW
10	Astoria 345kV substation	Deuel County, South Dakota	2030	1,144 MW

Planned natural gas power plants expected online soonest in MISO

In the next 18 months, soonest first

#	Natural gas power plant	Location	Expected online	Capacity
1	Riverside 115kV Substation	Hennepin County, Minnesota	2026	55 MW
2	PARIS 345kV Substation	Kenosha County, Wisconsin	2027	133 MW
3	SUB T 3 - HILLS 3 345.0kV	Washington County, Iowa	2027	350 MW
4	Salem - Hickory Creek 345 kV line	Dubuque County, Iowa	2027	160 MW
5	North Creek 138kV	Walworth County, Wisconsin	2027	324 MW
6	North Creek 138kV Station	Walworth County, Wisconsin	2027	250 MW
7	Doc Bonin 69kV	Lafayette Parish, Louisiana	2027	243 MW
8	Merom (HED) - Dresser 345.0kV	Sullivan County, Indiana	2027	650 MW
9	ORIENT - NORTHBORO 345.0kV	Adair County, Iowa	2027	263 MW
10	Petersburg - Sullivan (AEP/PJM) 345.0kV	Sullivan County, Indiana	2028	500 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 MISO

How many natural gas power plants are planned in MISO?: Developers have proposed 61 natural gas power plants in MISO with 32 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 MISO?: SIOUX in St. Charles County, Missouri is the largest planned, at 2,220 MW. It is expected to come online in 2030.
Who is developing natural gas power plants in MISO?: 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.