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HB 2457

public utilities; plant construction; colocation

57th Legislature - Second Regular Session Introduced by Justin Wilmeth

Arizona utilities gain authority to build and operate data centers at power plant sites, monetizing existing infrastructure while raising questions about ratepayer costs and regulatory oversight.

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Bill Summary · HB 2457

Legislative bill overview

HB 2457 permits public utilities in Arizona to construct and operate data center facilities (colocation centers) on or near power plant sites. The bill allows utilities to leverage existing infrastructure and land at generation facilities to provide data center services, potentially creating new revenue streams while utilizing underutilized assets.

Why is this important

Data centers require massive amounts of reliable electricity and cooling capacity—resources that power plants inherently possess. This bill could accelerate Arizona's competitiveness in attracting tech industry investment and cryptocurrency operations. However, it also raises questions about whether utilities should diversify into commercial tech services and how costs/risks are distributed between ratepayers and shareholders.

Potential points of contention

  • Ratepayer protection: Whether utility ratepayers should subsidize or bear risks for commercial data center ventures that primarily benefit shareholders
  • Regulatory oversight: Ambiguity about which state agency (Arizona Corporation Commission, etc.) oversees these facilities and ensures fair pricing/safety standards
  • Mission creep: Whether utilities should expand beyond their core function of providing electricity and water into commercial real estate and tech services
  • Stranded assets: Risk that aging power plants become economically viable only through data center revenue, delaying necessary grid modernization
  • Environmental impact: Questions about water consumption for cooling and whether colocation facilities receive appropriate environmental review

Compiled from official sources — confirm details with the bill’s official record.

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