How many solar farms are planned in ERCOT?

Developers have proposed 612 solar farms in ERCOT with 152 GW of capacity, according to the grid operators' interconnection queues. Most queue projects are never built.

What is the largest planned solar farm in ERCOT?

Spectra Solar in Scurry County, Texas is the largest planned, at 1,200 MW. It is expected to come online in 2028.

Who is developing solar farms in ERCOT?

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 solar farms in ERCOT

Developers have proposed 612 solar farms in ERCOT with 152 GW of capacity, in the grid operators' interconnection queues.

Planned612

See operating solar farms in ERCOT

Updated monthly. Last updated November 2026.

Under 50 MW50–249 MW250 MW and up

Updated monthly. Last updated November 2026.

More planned solar farms in ERCOT are expected online in 2029 than in any other year

110

195

197

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

Planned solar farms by the year they're expected online. Source: the grid operators' interconnection queues, compiled by Cleanview.

The 10 largest planned solar farms in ERCOT

Planned, by capacity

#	Solar farm	Location	Expected online	Capacity
1	Spectra Solar	Scurry County, Texas	2028	1,200 MW
2	Permian I Solar	Pecos County, Texas	2030	1,126 MW
3	Gravitas I Solar	Pecos County, Texas	2030	1,125 MW
4	Aurelius Solar	Deaf Smith County, Texas	2028	1,124 MW
5	Key City Solar SLF	Taylor County, Texas	2029	989 MW
6	Shadow Ranch Solar	Upton County, Texas	2030	808 MW
7	Zeus Mitchell Solar	Mitchell County, Texas	2029	805 MW
8	Indigo Solar 3	Fisher County, Texas	2028	800 MW
9	Meitner Solar	Gray County, Texas	2028	703 MW
10	Las Mujeres Solar	Jim Hogg County, Texas	2029	684 MW

Planned solar farms expected online soonest in ERCOT

In the next 18 months, soonest first

#	Solar farm	Location	Expected online	Capacity
1	Baker Branch Solar	Lamar County, Texas	2026	469 MW
2	Delilah Solar 2	Lamar County, Texas	2026	318 MW
3	Delilah Solar 1	Lamar County, Texas	2026	300 MW
4	Tulsita Solar	Goliad County, Texas	2026	256 MW
5	Samson Solar 1	Lamar County, Texas	2026	250 MW
6	Samson Solar 3	Lamar County, Texas	2026	250 MW
7	PHOTON SOLAR 1 2 SLF	Wharton County, Texas	2026	236 MW
8	Puerto Del Sol 1	Cameron County, Texas	2026	214 MW
9	New Hickory Solar	Jackson County, Texas	2026	209 MW
10	Limewood Solar	Bell County, Texas	2026	205 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 ERCOT

How many solar farms are planned in ERCOT?: Developers have proposed 612 solar farms in ERCOT with 152 GW of capacity, according to the grid operators' interconnection queues. Most queue projects are never built.
What is the largest planned solar farm in ERCOT?: Spectra Solar in Scurry County, Texas is the largest planned, at 1,200 MW. It is expected to come online in 2028.
Who is developing solar farms in ERCOT?: 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.