How many natural gas power plants are planned in Colorado?

Developers have proposed 19 natural gas power plants in Colorado with 1.8 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 Colorado?

El Paso Thermal in El Paso County, Colorado is the largest planned, at 412 MW. It is expected to come online in 2028.

Who is developing natural gas power plants in Colorado?

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 Colorado

Developers have proposed 19 natural gas power plants in Colorado with 1.8 GW of capacity, in the grid operators' interconnection queues.

Planned19

See operating natural gas power plants in Colorado

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 Colorado are expected online in 2028 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 Colorado

Planned, by capacity

#	Natural gas power plant	County	Expected online	Capacity
1	El Paso Thermal	El Paso County	2028	412 MW
2	Wellington Thermal	Wellington County	2028	250 MW
3	Fort St Vrain	Weld County	2027	239 MW
4	Fort St Vrain	Weld County	2027	239 MW
5	Horizon	El Paso County	2028	48 MW
6	Horizon	El Paso County	2028	48 MW
7	Horizon	El Paso County	2028	48 MW
8	Horizon	El Paso County	2028	48 MW
9	Horizon	El Paso County	2028	48 MW
10	Horizon	El Paso County	2028	48 MW

Planned natural gas power plants expected online soonest in Colorado

In the next 18 months, soonest first

#	Natural gas power plant	County	Expected online	Capacity
1	Fort St Vrain	Weld County	2027	239 MW
2	Fort St Vrain	Weld County	2027	239 MW
3	El Paso Thermal	El Paso County	2028	412 MW
4	Wellington Thermal	Wellington County	2028	250 MW
5	Rawhide	Larimer County	2028	45 MW
6	Rawhide	Larimer County	2028	45 MW
7	Rawhide	Larimer County	2028	45 MW
8	Rawhide	Larimer County	2028	45 MW
9	Rawhide	Larimer County	2028	45 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 Colorado

How many natural gas power plants are planned in Colorado?: Developers have proposed 19 natural gas power plants in Colorado with 1.8 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 Colorado?: El Paso Thermal in El Paso County, Colorado is the largest planned, at 412 MW. It is expected to come online in 2028.
Who is developing natural gas power plants in Colorado?: 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.