Terminal 106 West
IndustrialKing County, Washington · WECC
At a glance
Terminal 106 West is an industrial datacenter candidate site in King County, Washington, scoring 54.7/100 DC Readiness — 202nd of 344 scored sites in the county. It sits in the WECC grid region and the CITY OF SEATTLE - (WA) service territory, where interconnection has averaged 3.5 years from request to operation.
Power & interconnection
Speed to power
Deep queue and long historical waits — plan for a multi-year interconnection timeline and engage the utility early.
Connectivity
Site characteristics
Risk & environment
Location context
Regulatory climate
No notable statewide DC restriction on record; confirm local zoning and utility tariffs.
Incentive detail: Sales tax exemption on DC equipment and construction for eligible facilities; no state income tax.
Site location
Get alerts
Track Terminal 106 West
Get an email when its DC-readiness score, available capacity, or interconnection-queue status changes.
How does Terminal 106 West compare with other sites in King County?
Terminal 106 West ranks 202nd of 344 scored candidate sites in King County. Its 54.7/100 is roughly in line with the county average of 56.1. It is roughly in line with the Washington average of 51.7 and roughly in line with the national average of 53.2.
Against the Washington average, its strongest sub-score is fiber connectivity (86 vs 63) and its weakest is power availability (30 vs 37). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is Terminal 106 West to power, fiber and other datacenters?
For connectivity, the nearest internet exchange facility is SBTC at 3.2 miles. 16 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is CoreSite SE1, 2.7 miles away.
What are the flood, water and hazard risks at Terminal 106 West?
At the county level, FEMA's National Risk Index rates King County "Relatively Moderate".
Full DC Readiness breakdown
All 13 weighted sub-scores (0–100) behind the composite DC Readiness score.
Nearby comparable sites
Other scored datacenter candidate sites in King County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| MAPLE VALLEY | Substation-Adjacent | 500 kV | 1,000 MW | 3.5 yrs | 68.4 |
| COVINGTON | Substation-Adjacent | 500 kV | 1,000 MW | 3.5 yrs | 68.2 |
| ECHO LAKE | Substation-Adjacent | 500 kV | 1,000 MW | 3.5 yrs | 67.4 |
| RAVER | Substation-Adjacent | 500 kV | 1,000 MW | 3.5 yrs | 66.6 |
| TAP206230 | Substation-Adjacent | 500 kV | 1,000 MW | 3.5 yrs | 66.3 |
| OBRIEN | Substation-Adjacent | 230 kV | 300 MW | 3.5 yrs | 65.2 |
| OZ King | Greenfield | — | — | 3.5 yrs | 64.6 |
| SAMMAMISH | Substation-Adjacent | 230 kV | 300 MW | 3.5 yrs | 64.2 |
Terminal 106 West: common questions
What is the DC Readiness score of Terminal 106 West?
Terminal 106 West scores 54.7/100 on the GridCensus DC Readiness scale, rated fair. It ranks 202nd of 344 scored sites in King County. The King County average is 56.1 and the Washington average is 51.7.
Which electric utility serves Terminal 106 West?
CITY OF SEATTLE - (WA) (municipal) holds the retail service territory that contains the site; its holding company is SEATTLE PUBLIC UTILITIES.
What grid region is Terminal 106 West in?
Terminal 106 West is in the WECC region. Projects interconnecting there have averaged a 3.5-year wait from queue request to operation.
How far is Terminal 106 West from an internet exchange?
The nearest internet exchange facility is SBTC, about 3.2 miles away; 16 fiber providers report service at the location.
Related pages
About this data
Source: GridCensus composite of HIFLD transmission and substation data, EIA, FEMA National Risk Index, FCC broadband data, PeeringDB and ISO interconnection queues, as published October 10, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Terminal 106 West, King County, WA”, https://gridcensus.com/datacenter-sites/washington/king-county/terminal-106-west-bd18ad88 (data as of October 10, 2026).
Dataset updated . Screening estimates derived from public data sources.
Figures are screening estimates derived from public infrastructure data. Catalogued capacity reflects theoretical candidate capacity, not deliverable or committed interconnection. Confirm all values with the utility, ISO, and on-the-ground due diligence.
Go deeper than the public screen
Every site and score for Terminal 106 West, King County 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.