Interconnection queue in SPP (Southwest Power Pool) (2018 requests)

Before a new power plant or battery can connect to the US grid, it joins a queue for studies and an interconnection agreement. Most requests never get built. This shows every request: active, built and withdrawn.

Requests shown426,803 MW

Active in queue6,803 MW42 requests

Agreement signed6,303 MW39 requests

Withdrawn9216.8 GW never built

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Project, developer, substation or county State Grid region Technology Status Year joined Sort

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Source: Lawrence Berkeley National Laboratory, Queued Up interconnection queue data (data through end of 2025). Map points are county centres, not exact sites.

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In studyAgreement signedUnder constructionBuiltSuspendedWithdrawn

Requests

42 requests

Project	Capacity	Status	Location	Region	Queued	Online
Solar project GEN-2018-043, Burt County Solar	500 MW	Agreement signed	Burt, NE	SPP	May 2018	target 2028
Solar project GEN-2018-048, Caddo County Solar	300 MW	Agreement signed	Caddo, OK	SPP	May 2018	target 2028
Onshore wind project GEN-2018-099, Parmer County Onshore wind	300 MW	Agreement signed	Parmer, TX	SPP	Nov 2018	target 2027
Onshore wind project GEN-2018-067, Williams County Onshore wind	255 MW	Agreement signed	Williams, ND	SPP	Oct 2018	target 2028
Solar project GEN-2018-055, Grady County Solar	252 MW	Agreement signed	Grady, OK	SPP	May 2018	target 2026
Solar project GEN-2018-015, Cottle County Solar	252 MW	Agreement signed	Cottle, TX	SPP	Apr 2018	target 2027
Solar + storage project GEN-2018-115, Comanche County Solar + storage	250 MW	Agreement signed	Comanche, OK	SPP	Nov 2018	target 2029
Onshore wind project GEN-2018-125, Lancaster County Onshore wind	231 MW	Agreement signed	Lancaster, NE	SPP	Nov 2018	target 2031
Solar project GEN-2018-131, Pierce County Solar	221 MW	Agreement signed	Pierce, NE	SPP	Nov 2018	target 2031
Onshore wind project GEN-2018-082, Pittsburg County Onshore wind	215 MW	Agreement signed	Pittsburg, OK	SPP	Nov 2018	target 2030
Solar project GEN-2018-057, Sedgwick County Solar	203 MW	Agreement signed	Sedgwick, KS	SPP	May 2018	target 2030
Solar project GEN-2018-132, Pierce County Solar	202 MW	Agreement signed	Pierce, NE	SPP	Nov 2018	target 2026
Onshore wind project GEN-2018-128, Sumner County Onshore wind	200 MW	Agreement signed	Sumner, KS	SPP	Nov 2018	target 2030
Battery storage project GEN-2018-025, Washington County Battery storage	200 MW	Paused / redesign	Washington, NE	SPP	May 2018	target 2028
Battery storage project GEN-2018-033, Cass County Battery storage	200 MW	Paused / redesign	Cass, NE	SPP	May 2018	target 2029
Battery storage project GEN-2018-028, Tulsa County Battery storage	200 MW	Agreement signed	Tulsa, OK	SPP	May 2018	target 2028
Solar project GEN-2018-050, Caddo Parish County Solar	200 MW	Agreement signed	Caddo Parish, LA	SPP	May 2018	target 2028
Onshore wind project GEN-2018-089, Castro County Onshore wind	196 MW	Agreement signed	Castro, TX	SPP	Nov 2018	target 2028
Solar project GEN-2018-106, Caddo Parish County Solar	165 MW	Agreement signed	Caddo Parish, LA	SPP	Nov 2018	target 2028
Battery storage project GEN-2018-072, Kay County Battery storage	151 MW	Agreement signed	Kay, OK	SPP	Oct 2018	target 2027
Battery storage project GEN-2018-071, Kay County Battery storage	151 MW	Agreement signed	Kay, OK	SPP	Oct 2018	target 2027
Solar project GEN-2018-003, Bowie County Solar	150 MW	Agreement signed	Bowie, TX	SPP	Apr 2018	target 2027
Onshore wind project GEN-2018-009, Seward County Onshore wind	150 MW	Agreement signed	Seward, KS	SPP	Apr 2018	target 2029
Solar project GEN-2018-079, Craig County Solar	148 MW	Agreement signed	Craig, OK	SPP	Nov 2018	target 2029
Onshore wind project GEN-2018-069, Wibaux County Onshore wind	125 MW	Agreement signed	Wibaux, MT	SPP	Oct 2018	target 2031
Solar project GEN-2018-049, Sumner County Solar	120 MW	Agreement signed	Sumner, KS	SPP	May 2018	target 2027
Battery storage project GEN-2018-024, Muskogee County Battery storage	100 MW	Agreement signed	Muskogee, OK	SPP	May 2018	target 2028
Battery storage project GEN-2019-002, Mayes County Battery storage	100 MW	Agreement signed	Mayes, OK	SPP	Nov 2018	target 2027
Battery storage project GEN-2018-026, Canadian County Battery storage	100 MW	Agreement signed	Canadian, OK	SPP	May 2018	target 2026
Battery storage project GEN-2018-027, Tulsa County Battery storage	100 MW	Agreement signed	Tulsa, OK	SPP	May 2018	target 2028
Battery storage project GEN-2018-037, Douglas County Battery storage	100 MW	Paused / redesign	Douglas, NE	SPP	May 2018	target 2030
Battery storage project GEN-2018-029, Oklahoma County Battery storage	100 MW	Agreement signed	Oklahoma, OK	SPP	May 2018	target 2028
Battery storage project GEN-2018-108, Barber County Battery storage	95.0 MW	Agreement signed	Barber, KS	SPP	Nov 2018	target 2028
Solar project GEN-2018-064, Benton County Solar	80.0 MW	Agreement signed	Benton, AR	SPP	Oct 2018	target 2027
Solar project GEN-2018-004, Lea County Solar	75.0 MW	Agreement signed	Lea, NM	SPP	Apr 2018	target 2027
Battery storage project GEN-2018-011, Kingfisher County Battery storage	74.1 MW	Agreement signed	Kingfisher, OK	SPP	Apr 2018	target 2027
Onshore wind project GEN-2018-013, Dickinson County Onshore wind	74.1 MW	Agreement signed	Dickinson, KS	SPP	Apr 2018	target 2026
Onshore wind project GEN-2018-074, Crawford County Onshore wind	72.0 MW	Agreement signed	Crawford, IA	SPP	Oct 2018	target 2028
Battery storage project GEN-2018-052, Lea County Battery storage	70.0 MW	Agreement signed	Lea, NM	SPP	May 2018	target 2026
Onshore wind project GEN-2018-060, Webster County Onshore wind	50.0 MW	Agreement signed	Webster, NE	SPP	May 2018	target 2026
Battery storage project GEN-2018-031, Jackson County Battery storage	50.0 MW	Agreement signed	Jackson, MO	SPP	May 2018	target 2028
Onshore wind project GEN-2019-001, Pratt County Onshore wind	25.0 MW	Agreement signed	Pratt, KS	SPP	Nov 2018	2025

Capacity in the queue by state

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By grid region

ISO/RTO markets and the non-ISO West and Southeast.

Requests by year joined

Capacity of requests in this view, by the year they entered the queue. Click a year.

20112025

Source: Rand, J. et al., Queued Up, Lawrence Berkeley National Laboratory, data through end of 2025. Compiled from the queues of the 7 ISO/RTOs and dozens of non-ISO utilities. A request is a proposal to connect, not a commitment to build: historically most are withdrawn. Capacity is the requested interconnection size; hybrids include the storage component. Transmission lines · Planned power plants (EIA)