MARCH POINT
SubstationWashington
MARCH POINT is an electric transmission substation in Washington. It is classified as sub-transmission (138 kv) and connects 10 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 MARCH POINT, 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 |
|---|---|---|---|---|---|---|---|
| OLD TOWN | Substation-Adjacent | WA | Whatcom County | 230 kV | 300 MW | 3.5 yrs | 64.8 |
| TAP206066 | Substation-Adjacent | WA | Whatcom County | 230 kV | 300 MW | 3.5 yrs | 64.7 |
| TAP206065 | Substation-Adjacent | WA | Whatcom County | 230 kV | 300 MW | 3.5 yrs | 64.6 |
| BELLINGHAM | Substation-Adjacent | WA | Whatcom County | 230 kV | 300 MW | 3.5 yrs | 64.6 |
| BELLINGHAM | Substation-Adjacent | WA | Whatcom County | 230 kV | 300 MW | 3.5 yrs | 63.4 |
| INTALCO | Substation-Adjacent | WA | San Juan County | 230 kV | 300 MW | 3.5 yrs | 62.6 |
| SEDRO WOOLLEY | Substation-Adjacent | WA | Skagit County | 230 kV | 300 MW | 3.5 yrs | 61.2 |
| FREEDONIA | Substation-Adjacent | WA | Island County | 230 kV | 300 MW | 3.5 yrs | 61.1 |
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 MARCH POINT substation, Washington 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.