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Data Centres: Boom and Backlash
8SEP

Fairfax pre-empts; Sabey pulls Seattle plan

4 min read
13:06UTC

Fairfax County passed new data-centre regulations on a 8-2 vote on Tuesday 12 May; in Seattle, Sabey Data Centers withdrew its 68 MW Tukwila power request rather than wait out the city's 365-day freeze.

IndustryDeveloping
Key takeaway

Fairfax writes rules in advance; Sabey withdraws its Seattle request; the same operator pressure produces different outcomes in different councils.

Fairfax County voted 8-2 on Tuesday 12 May for new data-centre regulations explicitly designed to avoid a repeat of the Loudoun and Prince William fights 1. The package was drafted as a pre-emptive measure: define setbacks, noise and substation siting up front rather than wait for litigation to set the rules. Coming in the same week that Prince William abandoned the Digital Gateway appeal, the vote signals Northern Virginia's planning culture is now shifting from green-light defence to procedural front-loading.

In Seattle, Sabey Data Centers withdrew its 68 MW City Light request for its Tukwila campus rather than wait out the 365-day freeze the city's committees vote on Wednesday 20 May ; one further unnamed company also pulled out 2. Equinix and Prologis remain in the City Light queue with a combined 249 MW across three facilities, the load that will sit on the committee desk next week. Sabey's exit is the more telling marker: the operator chose to release the request and search elsewhere rather than carry the deposit and the carrying cost of a year-plus delay.

The parallel matters because it reads as the same operator calculus expressed in two registers. Where the regulatory layer has the votes to write rules ahead of demand, it is doing so (Fairfax). Where the regulatory layer has the votes to halt connection requests outright, operators are exiting (Seattle). The two patterns set the template for how the rest of the moratorium calendar is likely to land in Denver, Minneapolis and Normal: regulation as the friendly outcome, withdrawal as the unfriendly one. Both raise the cost of a 2026 US siting decision without producing a single enacted ban.

Deep Analysis

In plain English

Fairfax County in Virginia voted 8-2 to put new rules in place for data-centre applications, requiring buildings to be set back at least 200 feet from homes and developers to carry out noise studies. This is a pre-emptive move: the county is writing the rules before a contested project lands, rather than fighting it case by case after it has been submitted. In Seattle, a company called Sabey Data Centers decided to cancel its plans for a 68-megawatt facility in Tukwila, a Seattle suburb, rather than wait for the city's vote on a potential 365-day freeze on new data centres. Two larger operators, Equinix and the property company Prologis, are still in the queue with combined plans for 249 megawatts across three buildings.

Deep Analysis
Root Causes

Sabey Data Centers' withdrawal of its 68 MW Tukwila request reflects a straightforward option-value calculation: carrying a $68 MW power reservation through a 365-day freeze costs money in deposit, pre-development expense and opportunity cost.

At Seattle City Light's commercial rates, a 68 MW connection reservation carries roughly $2-4m in annual standby charges and development overhead. Over 365 days, the cost of waiting exceeds the cost of finding an alternative site; that operator calculus produced the withdrawal.

The remaining Equinix and Prologis queue of 249 MW reflects the opposite calculus: operators with 10-to-20-year customer commitments and existing site infrastructure cannot absorb a 365-day pause as cleanly as Sabey, whose Tukwila campus was in pre-development. The divergence in response (withdrawal versus wait) maps precisely onto the difference between pre-construction and committed-to-build stages.

What could happen next?
  • Consequence

    Sabey's withdrawal creates secondary-market demand for Pacific Northwest sites outside Seattle's jurisdiction, notably in Snohomish County and the broader Portland metro area, where moratorium activity is lower.

    Short term · 0.72
  • Precedent

    Fairfax's pre-emptive regulation model, if it produces fewer contested projects than Loudoun and Prince William, will be adopted by adjacent Northern Virginia counties within 12 months.

    Medium term · 0.7
  • Risk

    If Seattle's 365-day freeze passes and Equinix and Prologis cannot find alternative connection agreements, $1.5-2bn of capital sits in a 12-month planning limbo with no resolution mechanism inside Seattle's boundaries.

    Short term · 0.65
First Reported In

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WTOP News· 16 May 2026
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This Event
Fairfax pre-empts; Sabey pulls Seattle plan
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