FRONTENAC
SubstationMinnesota
At a glance
FRONTENAC is an electric transmission substation in Minnesota. It is classified as unclassified and connects 0 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
No owner is recorded for the lines that connect here.
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of FRONTENAC, 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 |
|---|---|---|---|---|---|---|---|
| NORTH ROCHESTER | Substation-Adjacent | MN | Goodhue County | 345 kV | 600 MW | 4.3 yrs | 65.9 |
| UNKNOWN129369 | Substation-Adjacent | MN | Pierce County | 345 kV | 600 MW | 4.3 yrs | 65.4 |
| EC Near Saint Marys Hospital Power Plant | Greenfield | MN | Olmsted | — | — | 4.3 yrs | 62.3 |
| EC Near Alma | Greenfield | WI | Buffalo | — | — | 4.3 yrs | 61.9 |
| EC Near Saint Marys Hospital Power Plant | Greenfield | MN | Olmsted | — | — | 4.3 yrs | 61.1 |
| UNKNOWN171127 | Substation-Adjacent | MN | Olmsted County | 69 kV | 50 MW | 4.3 yrs | 60.0 |
| UNKNOWN129279 | Substation-Adjacent | MN | Wabasha County | 161 kV | 100 MW | 4.3 yrs | 59.8 |
| UNKNOWN171124 | Substation-Adjacent | MN | Olmsted County | 69 kV | 50 MW | 4.3 yrs | 59.8 |
How do candidate sites near FRONTENAC score?
The 8 highest-scoring candidate sites within about 25 miles range from 60 to 66 on the 0–100 DC Readiness scale. They fall in Goodhue County, Pierce County, Olmsted, Buffalo. The Minnesota average across 3,216 scored sites is 55.7. 1,270 of those Minnesota sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
How many transmission lines connect to FRONTENAC substation?
0 transmission lines terminate at or pass through FRONTENAC in the HIFLD line data.
Where is FRONTENAC substation located?
FRONTENAC is in Minnesota at 44.5080, -92.3643. The datacenter candidate sites closest to it are in Goodhue County, Pierce County, Olmsted.
Are there datacenter candidate sites near FRONTENAC substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of FRONTENAC. The highest-scoring is NORTH ROCHESTER at 66/100. Across Minnesota, the average DC Readiness score is 55.7.
More in Minnesota
About this data
Source: HIFLD Electric Substations and Transmission Lines (U.S. Department of Homeland Security), as published June 29, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “FRONTENAC substation, Minnesota”, https://gridcensus.com/substations/minnesota/frontenac-33c00aec (data as of June 29, 2026).
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
Every site and score for FRONTENAC substation, Minnesota is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.