AIRWAY HEIGHTS
Substation-AdjacentSpokane County, Washington · WECC
At a glance
AIRWAY HEIGHTS is a substation-adjacent datacenter candidate site in Spokane County, Washington, scoring 59.0/100 DC Readiness — 46th of 140 scored sites in the county. Its nearest substation is AIRWAY HEIGHTS (0 mi, 115 kV). It sits in the WECC grid region and the AVISTA CORP service territory, where interconnection has averaged 3.5 years from request to operation. GridCensus catalogs 100 MW of candidate capacity here.
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
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How does AIRWAY HEIGHTS compare with other sites in Spokane County?
AIRWAY HEIGHTS ranks 46th of 140 scored candidate sites in Spokane County. Its 59.0/100 is roughly in line with the county average of 57.0. It is about 14% above the Washington average of 51.7 and about 11% above the national average of 53.2.
Against the Washington average, its strongest sub-score is power availability (56 vs 37) and its weakest is speed to power (50 vs 50). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is AIRWAY HEIGHTS to power, fiber and other datacenters?
The nearest mapped substation, AIRWAY HEIGHTS, is about 0 miles away and operates at 115 kV. For connectivity, the nearest internet exchange facility is US Bank Building at 8.6 miles. 16 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Iron Mountain, 5 miles away.
What are the flood, water and hazard risks at AIRWAY HEIGHTS?
At the county level, FEMA's National Risk Index rates Spokane 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 Spokane County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| BELL | Substation-Adjacent | 500 kV | 1,000 MW | 3.5 yrs | 68.0 |
| OZ Spokane | Greenfield | — | — | 3.5 yrs | 65.4 |
| UNKNOWN201468 | Substation-Adjacent | 230 kV | 300 MW | 3.5 yrs | 64.7 |
| BEACON | Substation-Adjacent | 230 kV | 300 MW | 3.5 yrs | 63.9 |
| WESTSIDE | Substation-Adjacent | 230 kV | 300 MW | 3.5 yrs | 63.4 |
| Greenfield (BELL - TAFT) | Greenfield | 500 kV | 1,000 MW | 3.5 yrs | 61.4 |
| TAP205391 | Substation-Adjacent | 138 kV | 100 MW | 3.5 yrs | 60.7 |
| UNKNOWN205382 | Substation-Adjacent | 115 kV | 100 MW | 3.5 yrs | 60.7 |
AIRWAY HEIGHTS: common questions
What is the DC Readiness score of AIRWAY HEIGHTS?
AIRWAY HEIGHTS scores 59.0/100 on the GridCensus DC Readiness scale, rated good. It ranks 46th of 140 scored sites in Spokane County. The Spokane County average is 57.0 and the Washington average is 51.7.
What is the nearest substation to AIRWAY HEIGHTS?
The nearest mapped substation is AIRWAY HEIGHTS, about 0 miles away, at 115 kV. GridCensus catalogs 100 MW of candidate capacity for the site.
Which electric utility serves AIRWAY HEIGHTS?
AVISTA CORP (investor owned) holds the retail service territory that contains the site.
What grid region is AIRWAY HEIGHTS in?
AIRWAY HEIGHTS is in the WECC region. Projects interconnecting there have averaged a 3.5-year wait from queue request to operation.
How far is AIRWAY HEIGHTS from an internet exchange?
The nearest internet exchange facility is US Bank Building, about 8.6 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, “AIRWAY HEIGHTS, Spokane County, WA”, https://gridcensus.com/datacenter-sites/washington/spokane-county/airway-heights-de4aa557 (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.
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