SEDRO WOOLLEY
SubstationWashington · BONNEVILLE POWER ADMINISTRATION
SEDRO WOOLLEY is an electric transmission substation in Washington, operated by BONNEVILLE POWER ADMINISTRATION. It is classified as high-voltage (230 kv) and connects 11 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 |
|---|---|---|---|---|
| #68038 | 230 kV | BONNEVILLE POWER ADMINISTRATION | — | 37.9 mi |
| #72422 | 230 kV | PUGET SOUND ENERGY INC | — | 39.1 mi |
| #72424 | 230 kV | BONNEVILLE POWER ADMINISTRATION | — | 0.2 mi |
| #72425 | 230 kV | PUGET SOUND ENERGY INC | — | 38.7 mi |
| #72455 | 115 kV | PUGET SOUND ENERGY INC | — | 22.7 mi |
| #72457 | 115 kV | PUGET SOUND ENERGY INC | — | 10.1 mi |
| #74133 | 115 kV | PUGET SOUND ENERGY INC | — | 21.4 mi |
| #76026 | 115 kV | PUGET SOUND ENERGY INC | IN SERVICE | 16.6 mi |
| #76027 | 115 kV | PUGET SOUND ENERGY INC | IN SERVICE | 0.6 mi |
| #76030 | 115 kV | PUGET SOUND ENERGY INC | IN SERVICE | 2.2 mi |
| #76038 | 115 kV | PUGET SOUND ENERGY INC | IN SERVICE | 7.2 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of SEDRO WOOLLEY, 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 |
|---|---|---|---|---|---|---|---|
| TAP206066 | Substation-Adjacent | WA | Whatcom County | 230 kV | 300 MW | 1.7 yrs | 73.0 |
| TAP206065 | Substation-Adjacent | WA | Whatcom County | 230 kV | 300 MW | 1.7 yrs | 72.5 |
| MURRAY | Substation-Adjacent | WA | Snohomish County | 230 kV | 300 MW | 1.7 yrs | 72.1 |
| Greenfield (MONROE - CUSTER) | Greenfield | WA | Whatcom County | 500 kV | 1,000 MW | 1.7 yrs | 70.2 |
| SEDRO WOOLLEY | Substation-Adjacent | WA | Skagit County | 230 kV | 300 MW | 1.7 yrs | 70.1 |
| Greenfield (MONROE - CUSTER) | Greenfield | WA | Snohomish County | 500 kV | 1,000 MW | 1.7 yrs | 69.7 |
| Greenfield (MONROE - CUSTER) | Greenfield | WA | Whatcom County | 500 kV | 1,000 MW | 1.7 yrs | 69.0 |
| SEHOME | Substation-Adjacent | WA | Whatcom County | 115 kV | 100 MW | 1.7 yrs | 68.8 |
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 SEDRO WOOLLEY 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.