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
55.8/100
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
37.2
Speed-to-power
50.1
Fiber
65.3
Water
60.6
Hazard resilience
72.2
Top 25 datacenter sites in SPP
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| COLSTRIP | Substation-Adjacent | MT | Rosebud County | 500 kV | 1,000 MW | 3.3 yrs | 75.8 |
| GRAND FORKS | Substation-Adjacent | ND | Grand Forks County | 345 kV | 600 MW | 3.3 yrs | 73.2 |
| ELLENDALE | Substation-Adjacent | ND | Dickey County | 230 kV | 300 MW | 3.3 yrs | 72.2 |
| OZ Grand Forks | Greenfield | ND | Grand Forks | — | — | 1.4 yrs | 70.8 |
| OZ Grand Forks | Greenfield | ND | Grand Forks | — | — | 1.4 yrs | 70.8 |
| EC Coal Pennington County | Greenfield | SD | Pennington County | — | — | 1.0 yrs | 70.4 |
| UNKNOWN133738 | Substation-Adjacent | ND | Grand Forks County | 230 kV | 300 MW | 3.3 yrs | 70.1 |
| SPLIT ROCK | Substation-Adjacent | SD | Minnehaha County | 345 kV | 600 MW | 3.3 yrs | 70.1 |
| OZ Cass | Greenfield | ND | Cass | — | — | 1.4 yrs | 69.8 |
| MAPLE RIVER | Substation-Adjacent | ND | Cass County | 345 kV | 600 MW | 3.3 yrs | 69.8 |
| EC Coal Yellowstone County | Greenfield | MT | Yellowstone County | — | — | 1.1 yrs | 69.7 |
| OZ Yankton | Greenfield | SD | Yankton | — | — | 1.0 yrs | 69.6 |
| SHEYENNE | Substation-Adjacent | ND | Clay County | 230 kV | 300 MW | 3.3 yrs | 69.6 |
| OZ Cass | Greenfield | ND | Cass | — | — | 1.4 yrs | 69.5 |
| UNKNOWN131651 | Substation-Adjacent | NE | Sarpy County | 345 kV | 600 MW | 3.3 yrs | 69.4 |
| EC Near Ben French | Greenfield | SD | Pennington | — | — | 1.0 yrs | 69.4 |
| UNKNOWN131665 | Substation-Adjacent | NE | Sarpy County | 345 kV | 600 MW | 3.3 yrs | 69.2 |
| EC Near J E Corette Plant | Greenfield | MT | Yellowstone | — | — | 1.1 yrs | 68.8 |
| BROADVIEW | Substation-Adjacent | MT | Golden Valley County | 500 kV | 1,000 MW | 3.3 yrs | 68.8 |
| OPPD BLONDO STREET | Substation-Adjacent | NE | Douglas County | 345 kV | 600 MW | 3.3 yrs | 68.8 |
| EC Near Ben French | Greenfield | SD | Pennington | — | — | 1.0 yrs | 68.7 |
| UNKNOWN132925 | Substation-Adjacent | ND | Burleigh County | 230 kV | 300 MW | 3.3 yrs | 68.7 |
| EC Near Colstrip | Greenfield | MT | Rosebud | — | — | 1.1 yrs | 68.7 |
| EC Near R M Heskett | Greenfield | ND | Morton | — | — | 1.4 yrs | 68.5 |
| EC Near Pathfinder | Greenfield | SD | Minnehaha | — | — | 1.0 yrs | 68.5 |
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 55.8/100 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.