How many battery storage projects are planned in SPP?

Developers have proposed 163 battery storage projects in SPP with 25 GW of capacity, according to the grid operators' interconnection queues. Most queue projects are never built.

What is the largest planned battery storage project in SPP?

Elgin Battery/Storage in Elgin County, Oklahoma is the largest planned, at 500 MW. It is expected to come online in 2028.

Who is developing battery storage projects 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.

Planned battery storage projects in SPP

Developers have proposed 163 battery storage projects in SPP with 25 GW of capacity, in the grid operators' interconnection queues.

Planned163

See operating battery storage projects in SPP

Updated monthly. Last updated November 2026.

Under 50 MW50–249 MW250 MW and up

Updated monthly. Last updated November 2026.

More planned battery storage projects in SPP are expected online in 2028 than in any other year

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

Planned battery storage projects by the year they're expected online. Source: the grid operators' interconnection queues, compiled by Cleanview.

The 10 largest planned battery storage projects in SPP

Planned, by capacity

#	Battery storage project	Location	Expected online	Capacity
1	Elgin Battery/Storage	Elgin County, Oklahoma	2028	500 MW
2	Spearman Battery/Storage	Spearman County, Texas	2027	457 MW
3	Garner Battery/Storage	Garner County, Kansas	2030	425 MW
4	Clinton Battery/Storage	Clinton County, Missouri	2027	400 MW
5	Labette Battery/Storage	Labette County, Kansas	2029	300 MW
6	Harrison Battery/Storage	Harrison County, Texas	2030	300 MW
7	Lavenworth Battery/Storage	Lavenworth County, Kansas	2029	300 MW
8	Yoakum Battery/Storage	Yoakum County, Texas	2028	300 MW
9	Oxford Battery/Storage	Oxford County, Kansas	2026	300 MW
10	McPherson Battery/Storage	McPherson County, Kansas	2028	300 MW

Planned battery storage projects expected online soonest in SPP

In the next 18 months, soonest first

#	Battery storage project	Location	Expected online	Capacity
1	Oxford Battery/Storage	Oxford County, Kansas	2026	300 MW
2	Morrison Battery/Storage	Morrison County, Oklahoma	2026	220 MW
3	Duncan Battery/Storage	Duncan County, Oklahoma	2026	200 MW
4	Minco Battery/Storage	Minco County, Oklahoma	2026	200 MW
5	Burke Battery/Storage	Burke County, North Dakota	2026	170 MW
6	Meadow Grove Battery/Storage	Meadow Grove County, Nebraska	2026	170 MW
7	Sedgwick Battery/Storage	Sedgwick County, Kansas	2026	152 MW
8	Fort Collins Battery/Storage	Fort Collins County, Colorado	2026	125 MW
9	Fort Gibson Battery/Storage	Fort Gibson County, Oklahoma	2026	102 MW
10	Oologah Battery/Storage	Oologah County, Oklahoma	2026	100 MW

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

How Cleanview tracks battery storage projects

Operating battery storage projects 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 battery storage projects in SPP

How many battery storage projects are planned in SPP?: Developers have proposed 163 battery storage projects in SPP with 25 GW of capacity, according to the grid operators' interconnection queues. Most queue projects are never built.
What is the largest planned battery storage project in SPP?: Elgin Battery/Storage in Elgin County, Oklahoma is the largest planned, at 500 MW. It is expected to come online in 2028.
Who is developing battery storage projects 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.