SPP interconnection queue
709 interconnection requests are active in SPP, totalling 145.4 GW, as of 15 August 2026. Of the 2,879 requests ever filed here, 315 were built and 1,846 were withdrawn — a build rate of 14.6% on decided applications.
Active requests
709
of 2,879 ever filed
Capacity queued
145.4 GW
requested, not committed
Built vs decided
14.6%
315 built, 1,846 withdrawn
Median wait so far
2.9 yr
for requests still active
Median time to build
4.0 yr
request to commercial operation
Source: the SPP interconnection queue as published by the transmission provider, parsed and normalised by Watt Street. Data as of 15 August 2026. Wait times are medians over requests that carry a measured date.
What is queued in SPP, by fuel
| Fuel | Projects | Capacity requested |
|---|---|---|
| Solar | 373 | 62.4 GW |
| Gas | 103 | 34.8 GW |
| Wind | 131 | 25.8 GW |
| Hybrid | 101 | 22.4 GW |
| Unknown | 1 | 8 MW |
Where SPP’s queue sits
| State | Applications | Capacity pending |
|---|---|---|
| Oklahoma | 768 | 42.7 GW |
| Kansas | 569 | 27.1 GW |
| Texas | 420 | 17.8 GW |
| Nebraska | 363 | 14.2 GW |
| Colorado | 87 | 13.8 GW |
| Missouri | 178 | 8.5 GW |
| New Mexico | 201 | 7.1 GW |
| North Dakota | 80 | 5.1 GW |
| Wyoming | 16 | 3.4 GW |
| Louisiana | 29 | 2.2 GW |
| Arkansas | 60 | 1.4 GW |
| South Dakota | 68 | 1.1 GW |
| Montana | 14 | 374 MW |
| Iowa | 8 | 285 MW |
| Minnesota | 5 | 26 MW |
Largest active requests
| Project | Fuel | Capacity | County | State | Filed |
|---|---|---|---|---|---|
| GEN-2024-340 | Gas | 1.4 GW | Creek County | OK | 2025-03 |
| GEN-2024-379 | Gas | 1.4 GW | Bossier Parish | LA | 2025-03 |
| GEN-2024-377 | Gas | 1.4 GW | Harrison County | TX | 2025-03 |
| GEN-2024-341 | Gas | 1.0 GW | Pittsburgh | OK | 2025-03 |
| GEN-2020-065 | Gas | 1.0 GW | Gaines | NM | 2020-04 |
| GEN-2023-204 | Gas | 915 MW | Morris County | TX | 2023-10 |
| GEN-2024-129 | Gas | 910 MW | Labette County | KS | 2025-03 |
| GI-CS-2025-25 | Hybrid | 800 MW | Platte County | WY | 2025-10 |
| ERAS-2025-004 | Gas | 779 MW | Harrah | OK | 2025-09 |
| GEN-2024-207 | Gas | 779 MW | Missouri | MO | 2025-03 |
| ERAS-2025-012 | Gas | 750 MW | Stanton | ND | 2025-10 |
| ERAS-2025-011 | Gas | 750 MW | Stanton | ND | 2025-10 |
| GEN-2024-082 | Gas | 745 MW | Williams County | ND | 2024-10 |
| GEN-2024-081 | Gas | 745 MW | Williams County | ND | 2024-10 |
| GEN-2024-299 | Gas | 744 MW | Oklahoma County | OK | 2025-03 |