How many solar farms are in SPP?

SPP has 155 operating utility-scale solar farms with 2.7 GW of capacity, according to the EIA's monthly survey of power plants.

What is the largest solar farm in SPP?

1000 Mile Solar in Yoakum County, Texas is the largest, at 300 MW. It came online in 2026.

How many solar farms were built in SPP in 2025?

11 solar farms came online in SPP in 2025, with 558 MW of capacity.

Who is developing solar farms in SPP?

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 SPP

SPP has 155 operating solar farms with 2.7 GW of capacity. 11 came online in 2025.

Operating155

See planned solar farms in SPP

Updated monthly. Last updated November 2026.

Under 50 MW50–249 MW250 MW and up

Updated monthly. Last updated November 2026.

SPP had 26 solar farms online in 2016 and 155 in 2026

103

121

129

140

155

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 SPP

Operating, by capacity

#	Solar farm	Location	Year online	Capacity
1	1000 Mile Solar	Yoakum County, Texas	2026	300 MW
2	Skeleton Creek Energy Center Hybrid	Garfield County, Oklahoma	2025	250 MW
3	Pixley Solar Energy	Barber County, Kansas	2025	189 MW
4	Twelvemile Solar 1	Mayes County, Oklahoma	2026	152 MW
5	Boot Hill Solar	Ford County, Kansas	2026	150 MW
6	Plant X Solar	Lamb County, Texas	2026	150 MW
7	Huckleberry Solar	Mayes County, Oklahoma	2026	125 MW
8	North Fork Solar Project	Kiowa County, Oklahoma	2024	120 MW
9	Mayes County Solar	Mayes County, Oklahoma	2026	102 MW
10	Choctaw Fields Solar Project	Choctaw County, Oklahoma	2026	85 MW

Solar farms that came online most recently in SPP

Newest first

#	Solar farm	Location	Year online	Capacity
1	1000 Mile Solar	Yoakum County, Texas	2026	300 MW
2	Mayes County Solar	Mayes County, Oklahoma	2026	102 MW
3	Choctaw Fields Solar Project	Choctaw County, Oklahoma	2026	85 MW
4	Saltbranch Solar 1	Mayes County, Oklahoma	2026	73 MW
5	Saltbranch 2	Mayes County, Oklahoma	2026	73 MW
6	Huckleberry Solar	Mayes County, Oklahoma	2026	125 MW
7	Chanute Solar	Neosho County, Kansas	2026	6 MW
8	Boot Hill Solar	Ford County, Kansas	2026	150 MW
9	Plant X Solar	Lamb County, Texas	2026	150 MW
10	Cunningham Solar I & BESS	Lea County, New Mexico	2026	72 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 SPP

How many solar farms are in SPP?: SPP has 155 operating utility-scale solar farms with 2.7 GW of capacity, according to the EIA's monthly survey of power plants.
What is the largest solar farm in SPP?: 1000 Mile Solar in Yoakum County, Texas is the largest, at 300 MW. It came online in 2026.
How many solar farms were built in SPP in 2025?: 11 solar farms came online in SPP in 2025, with 558 MW of capacity.
Who is developing solar farms in SPP?: 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.