SPP Datacenter Sites
Southwest Power Pool
SPP coordinates the central plains. Among the windiest grids in North America, it offers some of the lowest energy prices and shortest queues — attractive for power-hungry, latency-tolerant workloads.
15,727
Candidate sites
52.4/100
Avg DC Readiness
1.8M MW
Catalogued capacity
theoretical aggregate
2.4 yrs
Avg queue wait
Member states
- Kansas2,764
- Nebraska2,575
- Oklahoma2,409
- Montana2,077
- North Dakota1,800
- South Dakota1,433
- New Mexico1,407
- Nevada374
- Minnesota223
- Iowa154
- New York97
- Missouri93
- Idaho86
- Arizona85
- Colorado62
- New Jersey26
- New Hampshire20
- Utah15
- Wyoming13
- Texas8
- Washington2
- Indiana1
- Illinois1
- Georgia1
- South Carolina1
By site type
- Greenfield5,827
- Industrial3,128
- Federal Excess2,996
- Substation-Adjacent2,145
- Former Mine1,538
- Brownfield92
- Military BRAC1
Average sub-score profile
Power availability
38.4
Speed-to-power
49.3
Fiber
53.5
Water
58.1
Hazard resilience
61.7
Top 25 datacenter sites in SPP
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| J E Corette Plant | Brownfield | MT | Yellowstone | — | 173 MW | — | 80.9 |
| TAP134012 | Substation-Adjacent | ND | Grand Forks County | 230 kV | 300 MW | 1.4 yrs | 80.8 |
| COLSTRIP | Substation-Adjacent | MT | Rosebud County | 500 kV | 1,000 MW | 1.1 yrs | 80.4 |
| BROADVIEW | Substation-Adjacent | MT | Golden Valley County | 500 kV | 1,000 MW | 1.1 yrs | 80.1 |
| GRIMES | Substation-Adjacent | IA | Mills County | 345 kV | 600 MW | 3.5 yrs | 79.4 |
| AUDOBON 230KV | Substation-Adjacent | MN | Clay County | 230 kV | 300 MW | 1.4 yrs | 79.3 |
| LANCASTER | Substation-Adjacent | ID | Kootenai County | 230 kV | 300 MW | 1.1 yrs | 79.2 |
| UNKNOWN132925 | Substation-Adjacent | ND | Burleigh County | 230 kV | 300 MW | 1.4 yrs | 79.1 |
| BILLINGS | Substation-Adjacent | MT | Yellowstone County | 230 kV | 300 MW | 1.1 yrs | 78.9 |
| RATTLESNAKE | Substation-Adjacent | MT | Missoula County | 230 kV | 300 MW | 1.1 yrs | 78.9 |
| UNKNOWN175849 | Substation-Adjacent | ND | Dickey County | 345 kV | 600 MW | 1.4 yrs | 78.7 |
| GARRISON | Substation-Adjacent | MT | Powell County | 500 kV | 1,000 MW | 1.1 yrs | 78.6 |
| UNKNOWN133737 | Substation-Adjacent | ND | Grand Forks County | 230 kV | 300 MW | 1.4 yrs | 78.3 |
| ALEXANDRIA | Substation-Adjacent | ND | Cass County | 345 kV | 600 MW | 1.4 yrs | 78.3 |
| UNKNOWN163571 | Substation-Adjacent | IA | Mills County | 345 kV | 600 MW | 3.5 yrs | 78.1 |
| UNKNOWN202569 | Substation-Adjacent | MT | Yellowstone County | 230 kV | 300 MW | 1.1 yrs | 78.0 |
| WALTER SCOTT ENERGY CENTER | Substation-Adjacent | IA | Mills County | 345 kV | 600 MW | 3.5 yrs | 77.9 |
| BISMARCK | Substation-Adjacent | ND | Burleigh County | 230 kV | 300 MW | 1.4 yrs | 77.8 |
| COAL CREEK | Substation-Adjacent | ND | Oliver County | 400 kV | 600 MW | 1.4 yrs | 77.6 |
| RED | Substation-Adjacent | ND | Dunn County | 345 kV | 600 MW | 1.4 yrs | 77.6 |
| Greenfield (BROADVIEW - COLSTRIP) | Greenfield | MT | Rosebud County | 500 kV | 1,000 MW | 1.1 yrs | 77.2 |
| SIOUX CITY | Substation-Adjacent | IA | Plymouth County | 345 kV | 600 MW | 3.5 yrs | 77.1 |
| HESKETT 230 KV | Substation-Adjacent | ND | Burleigh County | 230 kV | 300 MW | 1.4 yrs | 77.1 |
| HESKETT | Substation-Adjacent | ND | Burleigh County | 230 kV | 300 MW | 1.4 yrs | 77.1 |
| ANTELOPE VALLEY STATION | Substation-Adjacent | ND | Oliver County | 345 kV | 600 MW | 1.4 yrs | 77.0 |
SPP FAQ
- What is SPP?
- Southwest Power Pool (SPP) SPP coordinates the central plains. Among the windiest grids in North America, it offers some of the lowest energy prices and shortest queues — attractive for power-hungry, latency-tolerant workloads.
- How many datacenter sites are in the SPP region?
- GridCensus catalogs 15,727 scored datacenter candidate sites in SPP, averaging 52.4/100 DC Readiness.
- What is the average interconnection-queue wait in SPP?
- Candidate sites in SPP average a 2.4 yrs queue wait with an average queue depth of 28 projects.
Dataset updated . Screening estimates derived from public data sources.
Go deeper than the public screen
This page shows a public slice of the GridCensus dataset for SPP. Pro and Enterprise plans unlock the full 164,098-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.