HELENA
SubstationMinnesota · NORTHERN STATES POWER CO - MINNESOTA
HELENA is an electric transmission substation in Minnesota, operated by NORTHERN STATES POWER CO - MINNESOTA. It is classified as high-voltage (345 kv) and connects 5 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
Ownership & operation
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #13047 | 345 kV | — | IN SERVICE | 73.0 mi |
| #14464 | 345 kV | — | IN SERVICE | 20.9 mi |
| #14474 | 345 kV | — | IN SERVICE | 73.0 mi |
| #59664 | 345 kV | NORTHERN STATES POWER CO - MINNESOTA | IN SERVICE | 17.3 mi |
| #60110 | 345 kV | NORTHERN STATES POWER CO - MINNESOTA | IN SERVICE | 7.5 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of HELENA, 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 |
|---|---|---|---|---|---|---|---|
| BLUE LAKE | Substation-Adjacent | MN | Carver County | 345 kV | 600 MW | 1.4 yrs | 79.9 |
| UNKNOWN132021 | Substation-Adjacent | MN | Le Sueur County | 345 kV | 600 MW | 1.4 yrs | 75.1 |
| WEST RIVER ROAD | Substation-Adjacent | MN | Ramsey County | 115 kV | 100 MW | 1.4 yrs | 73.7 |
| UNKNOWN129620 | Substation-Adjacent | MN | Scott County | 115 kV | 100 MW | 1.4 yrs | 72.9 |
| MEDICINE LAKE | Substation-Adjacent | MN | Hennepin County | 115 kV | 100 MW | 1.4 yrs | 72.7 |
| MAIN ST | Substation-Adjacent | MN | Ramsey County | 115 kV | 100 MW | 1.4 yrs | 72.7 |
| WEST FAIRBAULT | Substation-Adjacent | MN | Rice County | 115 kV | 100 MW | 1.4 yrs | 72.2 |
| UNKNOWN132858 | Substation-Adjacent | MN | Scott County | 115 kV | 100 MW | 1.4 yrs | 71.8 |
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.
Go deeper than the public screen
This page shows a public slice of the GridCensus dataset for HELENA 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.