Arizona Data Centers

Nearly all of Arizona’s data center activity is concentrated in Maricopa County — the greater Phoenix metro. The West Valley (Goodyear, Avondale, El Mirage) has become the preferred corridor for hyperscale builds, with Microsoft, Google, and Meta constructing massive campuses on inexpensive desert land. The East Valley (Mesa, Chandler, Gilbert) hosts a denser mix of colocation and enterprise facilities, closely integrated with the semiconductor corridor anchored by TSMC, Intel, and NXP. Phoenix’s low humidity enables highly efficient evaporative cooling for roughly 90% of the year, turning what appears to be a climate disadvantage into a meaningful operating cost reduction.

Maricopa County dominates with the vast majority of Arizona’s 83 tracked facilities. Pinal County to the south and Yavapai County to the north have seen exploratory interest, but Phoenix metro’s utility infrastructure (APS and SRP), fiber connectivity, and workforce keep the market concentrated.

Microsoft’s Goodyear campus and Google’s Mesa expansion represent multi-billion-dollar bets on Phoenix. CyrusOne, Digital Realty, EdgeCore, Vantage, and Iron Mountain provide the colocation layer. TSMC’s fab in north Phoenix is attracting adjacent data center development from companies that want to colocate AI training near chip manufacturing — a new site-selection dynamic that barely existed three years ago.

Maricopa County leads with 6,583 MW of tracked capacity. The largest Arizona facilities are overwhelmingly hyperscale cloud and AI builds in the West Valley, where cheap land, utility capacity, and solar resources converge.

Arizona’s pipeline has accelerated as operators seek alternatives to constrained California and Northern Virginia markets. Phoenix offers comparable fiber connectivity to the Bay Area (a 5-hour drive, 1-hour flight) at a fraction of the real estate and electricity cost. TSMC’s expanding semiconductor campus is creating a new demand dynamic — AI companies increasingly want to manufacture and deploy in the same region. 14 Arizona facilities are currently in development.

Arizona’s electricity market is regulated, served by APS (Arizona Public Service) and SRP (Salt River Project). Commercial rates average 8–10¢/kWh, competitive for a Sun Belt market. Both utilities offer dedicated large-load tariffs for data centers. Arizona’s real energy advantage is solar: the state averages 300+ sunny days per year, and operators are signing power purchase agreements for dedicated solar-plus-battery projects at rates below grid prices. APS and SRP also offer green tariff programs that match consumption with utility-scale solar. Compare current Arizona electricity rates.