TACONITE HARBOR ENERGY CENTER
SubstationMinnesota · ALLETE, INC.
TACONITE HARBOR ENERGY CENTER is an electric transmission substation in Minnesota, operated by ALLETE, INC.. It is classified as sub-transmission (138 kv) and connects 3 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 |
|---|---|---|---|---|
| #39282 | 138 kV | ALLETE, INC. | IN SERVICE | 61.1 mi |
| #49880 | 138 kV | ALLETE, INC. | IN SERVICE | 61.1 mi |
| #21030 | 115 kV | MINNESOTA POWER INC | IN SERVICE | 16.9 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TACONITE HARBOR ENERGY CENTER, 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 |
|---|---|---|---|---|---|---|---|
| TACONITE HARBOR ENERGY CENTER | Substation-Adjacent | MN | Lake County | 138 kV | 100 MW | 1.4 yrs | 68.1 |
| UNKNOWN129253 | Substation-Adjacent | MN | Lake County | 115 kV | 100 MW | 1.4 yrs | 64.6 |
| UNKNOWN129252 | Substation-Adjacent | MN | Lake County | 115 kV | 100 MW | 1.4 yrs | 61.0 |
| OZ Lake | Greenfield | MN | Lake | — | — | 1.4 yrs | 59.3 |
| TAP134625 | Substation-Adjacent | MN | Lake County | 115 kV | 100 MW | 1.4 yrs | 58.5 |
| SILVER BAY POWER | Substation-Adjacent | MN | Lake County | 115 kV | 100 MW | 1.4 yrs | 57.4 |
| Greenfield (TACONITE HARBOR ENERGY CENTER ) | Greenfield | MN | Lake County | 138 kV | 100 MW | 1.4 yrs | 56.1 |
| EC Near Taconite Harbor Energy Center | Greenfield | MN | Cook | — | — | 1.4 yrs | 55.6 |
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 TACONITE HARBOR ENERGY CENTER 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.