FORBES
SubstationMinnesota · ALLETE, INC.
FORBES is an electric transmission substation in Minnesota, operated by ALLETE, INC.. It is classified as extra-high-voltage (500 kv) and connects 10 transmission lines. Substation proximity is one of the strongest speed-to-power signals for siting a datacenter — interconnection distance to an energized, high-voltage bus is often the binding constraint on time-to-energization.
Voltage & classification
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #25064 | 500 kV | — | IN SERVICE | 193.1 mi |
| #60329 | 500 kV | — | IN SERVICE | 139.2 mi |
| #19273 | 230 kV | — | IN SERVICE | 25.6 mi |
| #37147 | 230 kV | ALLETE, INC. | IN SERVICE | 47.7 mi |
| #27760 | 230 kV | — | IN SERVICE | 34.3 mi |
| #31396 | 115 kV | — | IN SERVICE | 15.9 mi |
| #20305 | 115 kV | — | IN SERVICE | 5.5 mi |
| #3223 | 115 kV | ALLETE, INC. | IN SERVICE | 17.9 mi |
| #37203 | 115 kV | ALLETE, INC. | IN SERVICE | 31.5 mi |
| #40120 | 115 kV | ALLETE, INC. | IN SERVICE | 4.3 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of FORBES, ranked by DC Readiness. Sites this close to an energized substation carry a strong speed-to-power advantage.
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| FORBES | Substation-Adjacent | MN | St. Louis County | 500 kV | 1,000 MW | 1.4 yrs | 71.1 |
| UNKNOWN130472 | Substation-Adjacent | MN | Itasca County | 115 kV | 100 MW | 1.4 yrs | 70.0 |
| TAP135605 | Substation-Adjacent | MN | Carlton County | 230 kV | 300 MW | 1.4 yrs | 70.0 |
| TAP170850 | Substation-Adjacent | MN | Itasca County | 230 kV | 300 MW | 1.4 yrs | 69.8 |
| Greenfield (FORBES - CHISAGO) | Greenfield | MN | Carlton County | 500 kV | 1,000 MW | 1.4 yrs | 68.7 |
| Greenfield (BLACKBERRY - TAP135605) | Greenfield | MN | Carlton County | 230 kV | 300 MW | 1.4 yrs | 67.3 |
| UNKNOWN129315 | Substation-Adjacent | MN | St. Louis County | 115 kV | 100 MW | 1.4 yrs | 67.3 |
| TAP134727 | Substation-Adjacent | MN | St. Louis County | 115 kV | 100 MW | 1.4 yrs | 67.0 |
Dataset updated . Screening estimates derived from public data sources.
Substation attributes are derived from public HIFLD / EIA infrastructure data and may lag real-world upgrades or retirements. Voltage and connected-line counts are screening figures — confirm available capacity and interconnection terms directly with the operating utility and ISO.
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This page shows a public slice of the GridCensus dataset for FORBES substation, Minnesota. 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.