NORTH MADISON 345/138KV
SubstationWisconsin
NORTH MADISON 345/138KV is an electric transmission substation in Wisconsin. It is classified as high-voltage (345 kv) and connects 6 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
Operator not catalogued for this substation.
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of NORTH MADISON 345/138KV, 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 |
|---|---|---|---|---|---|---|---|
| CARDINAL | Substation-Adjacent | WI | Dane County | 345 kV | 600 MW | 2.8 yrs | 70.1 |
| NORTH MADISON 345/138KV | Substation-Adjacent | WI | Dane County | 345 kV | 600 MW | 2.8 yrs | 67.1 |
| OZ Dane | Greenfield | WI | Dane | — | — | 1.4 yrs | 66.9 |
| OZ Dane | Greenfield | WI | Dane | — | — | 1.4 yrs | 66.2 |
| EC Near Blount Street | Greenfield | WI | Dane | — | — | 1.4 yrs | 66.1 |
| OZ Dane | Greenfield | WI | Dane | — | — | 1.4 yrs | 66.0 |
| OZ Dane | Greenfield | WI | Dane | — | — | 1.4 yrs | 65.9 |
| EC Near Blount Street | Greenfield | WI | Dane | — | — | 1.4 yrs | 65.4 |
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 NORTH MADISON 345/138KV substation, Wisconsin. 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.