NORTH MOUNTAIN
SubstationWashington · CITY OF SEATTLE - (WA)
NORTH MOUNTAIN is an electric transmission substation in Washington, operated by CITY OF SEATTLE - (WA). It is classified as high-voltage (230 kv) and connects 2 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 |
|---|---|---|---|---|
| #72416 | 230 kV | CITY OF SEATTLE - (WA) | — | 40.6 mi |
| #72418 | 230 kV | CITY OF SEATTLE - (WA) | — | 36.7 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of NORTH MOUNTAIN, 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 |
|---|---|---|---|---|---|---|---|
| MONROE | Substation-Adjacent | WA | Snohomish County | 500 kV | 1,000 MW | 1.7 yrs | 76.2 |
| Greenfield (CHIEF JOSEPH - SNOHOMISH) | Greenfield | WA | Snohomish County | 345 kV | 600 MW | 1.7 yrs | 67.8 |
| THREE LAKES | Substation-Adjacent | WA | Snohomish County | 138 kV | 100 MW | 1.7 yrs | 67.8 |
| NORTH MOUNTAIN | Substation-Adjacent | WA | Snohomish County | 230 kV | 300 MW | 1.7 yrs | 66.0 |
| UNKNOWN201430 | Substation-Adjacent | WA | Snohomish County | 138 kV | 100 MW | 1.7 yrs | 64.5 |
| UNKNOWN206041 | Substation-Adjacent | WA | Skagit County | 115 kV | 100 MW | 1.7 yrs | 63.4 |
| JIM CREEK | Substation-Adjacent | WA | Snohomish County | 115 kV | 100 MW | 1.7 yrs | 63.3 |
| Greenfield (NORTH MOUNTAIN - SNOHOMISH) | Greenfield | WA | Snohomish County | 230 kV | 300 MW | 1.7 yrs | 62.4 |
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 MOUNTAIN substation, Washington. 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.