Arizona Data Center Siting and…Arizona Data Center Siting and GovernanceCoverage from Cronkite News, Planetizen, and others
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Arizona’s approach to data-center development brings together state policy, local land-use decisions, and the capacity of utilities and water systems.
Officials and communities weigh approval rules, tax incentives, environmental protections, and who should bear infrastructure costs as large facilities seek sites across the state. Attorney General Kris Mayes and Governor Katie Hobbs have taken differing positions on broad pauses and narrower restrictions, while Arizona Public Service has raised grid and rate questions. Local proposals in places such as Ahwatukee and Glendale show how statewide policy intersects with neighborhood consultation, zoning, and project-specific impacts.
It describes Arizona’s regulatory framework for assigning new infrastructure costs to large loads rather than existing customers.
KTAR / Kylie Werner
Key Issues
01
Statewide limits remain narrow and contested
State leaders disagree over a broad pause on new data center approvals, and no statewide construction moratorium is reported as enacted. Arizona has instead adopted a three-year pause on new tax incentives, leaving further growth rules unresolved.
Drawn from 4 articles
02
Local siting controls are tightening, with uneven authority
Tucson has shifted large facilities to discretionary review with siting and resource safeguards, while Peoria and Casa Grande are also applying or developing more project-specific controls. Local decisions do not always settle outcomes: Project Blue proceeded after Tucson rejected it, through separate county and state approvals.
Strengthening
Drawn from 5 articles
03
Water concerns are significant but difficult to quantify
Water use remains a prominent constraint on proposed development, with estimates varying by whether they include cooling alone or water used for power generation. Limited facility-level tracking and disclosure make impacts hard to establish, even as projects pursue alternatives such as reclaimed water, closed-loop cooling, and permit caps.
Drawn from 4 articles
04
Who pays for power infrastructure is an active regulatory issue
Utilities and regulators are establishing or considering cost-allocation rules intended to make large new loads pay for added infrastructure rather than shifting those costs to existing customers. Record demand and rate pressures keep the adequacy and implementation of those protections in question.
Drawn from 4 articles
Key Numbers
11 buildings
revised project buildings
“In response to opposition, the developer reduced the proposal to 11 buildings and one power plant, moved the facility several miles from neighbors, pledged to use less water, and brought in an economist to highlight projected revenue.”
Arizona's Family
4-1
board vote
rejection of the project
“The Pinal County Board of Supervisors voted 4-1 to reject what would have been Arizona’s largest data center project, following opposition from residents concerned about water and power use.”
Arizona's Family
one power plant
revised project power plants
“In response to opposition, the developer reduced the proposal to 11 buildings and one power plant, moved the facility several miles from neighbors, pledged to use less water, and brought in an economist to highlight projected revenue.”
Arizona's Family
3.3 billion gallons
Phoenix-area data center water use including power generation
including water used for power generation · September 2025
“A September 2025 Ceres report estimated that Phoenix-area data centers use 385 million gallons annually for cooling and 3.3 billion gallons when water used for power generation is included.”
Cronkite News
330,000 square feet
approximate size of each planned data center
each facility
“In Glendale, Project Eagle, formerly known as Project Baccara, is moving through the approval process. The proposed development near the northwest corner of Litchfield Road and Olive Avenue would include three data centers, each approximately 330,000 square feet, and an on-site power plant.”
ABC15 Arizona
Looking Back
149 Day Timeline
Articles published over time. Hover any bar for the period and its article count.
May 20
Jun 13
Jul 7
Jul 31
Aug 24
Sep 17
Oct 11
The Story So Far
No material change
No new-member articles are available to establish a material change since the prior state.
Previously
Arizona's data center expansion is prompting disputes over water supplies, electricity capacity, utility costs, tax incentives, and local control. Attorney General Kris Mayes has urged a statewide pause, while Governor Katie Hobbs has opposed a blanket moratorium; cities are adopting or considering stricter project reviews, and regulators are addressing the costs of serving large loads.
Arizona officials and researchers are examining data center water use as Colorado River shortages require major consumption reductions across the state.
Project Blue, backed by Beale Infrastructure and Amazon Web Services, advanced near Tucson after county and state approvals overcame the city's unanimous August 2025 rejection.
Arizona's Department of Water Resources approved two groundwater wells for Beale Infrastructure's Project Blue data center in Pima County after Tucson rejected municipal water support in 2025.
The Tucson City Council adopted discretionary zoning, environmental, water, noise, and backup-power rules for large data centers on August 5, 2026, in Tucson, Arizona.
Tucson City Council adopted a hyperscale data center zoning ordinance on August 5, 2026, requiring rezoning, public hearings, water safeguards, and final council approval within Tucson, Arizona.
Tucson Mayor and City Council approved large-scale data center regulations on August 5, 2026, requiring special zoning, public hearings, water planning, and major setbacks within Tucson, Arizona.
Casa Grande's Planning and Zoning Commission is scheduled to consider LKY Development Company's conditional-use application for a data center campus in Casa Grande, Arizona.
Tucson City Council approved a large-scale data center ordinance on Wednesday, requiring rezoning and heightened environmental, utility, noise, and public-review controls in Tucson, Arizona.
Peoria City Council leaders agreed in Arizona to advance zoning amendments requiring special use permits for new data centers and adding potential location and infrastructure standards.
Marana, Arizona candidates contest Beale Infrastructure data center rezoning after a unanimous January vote and an Arizona Court of Appeals referendum review.
7/12/2026 • Community & Local Opposition • General
Avondale, Arizona outlines closed-loop cooling, utility capacity planning, and local review standards for Prime Data Centers and STACK Infrastructure under construction.
Pinal County supervisors rejected Vermaland's proposed data center south of Eloy, Arizona, after residents and officials raised unresolved water, power, and environmental concerns.
Menlo Digital sought permits for a 38-acre Ahwatukee data center in Phoenix as nearby residents raised heat, noise, and air-quality concerns after Phoenix approved easement removals.
Residents near Tucson and Marana disputed Beale Infrastructure Project Blue data centers after proposed water and power impacts amid drought conditions and utility upgrade rate filings.
6/27/2026 • Community & Local Opposition • General
Pima County and Johns Hopkins researchers released a countywide health assessment identifying air, heat, water, and energy risks associated with Project Blue in Southern Arizona.
In Phoenix, Arizona, Gov. Katie Hobbs proposes ending a $38.5 million data center tax incentive amid community and worker concerns about extreme heat and local environmental impacts.
6/26/2026 • Community & Local Opposition • General
Gilbert, Arizona, town staff are seeking data-center zoning amendments covering water, power, sound, lighting, and design before the Planning Commission's Aug. 5 meeting.
Gilbert, Arizona planning officials discussed proposed data center rules on water use, zoning placement, and residential setbacks ahead of a future formal hearing.
Tucson Planning Commission held a hearing in summer planning for large-scale data center standards, including water and cooling limits, after community input.
In Marana, Arizona, mayoral candidates Jon Post and Greg Johnsen dispute data center impacts as DHS public comment renews concerns about an ICE detention center proposal.
7/12/2026 • Community & Local Opposition • General
Arizona Attorney General Kris Mayes will host a public meeting on data center impacts on October 14, 2026, at the Eagles Community Center in Mesa, Arizona.
10/13/2026 • Community & Local Opposition • General
Sahuarita residents recently rallied against a potential hyperscale data center near Rancho Resort, citing water, power, environmental, and health concerns.
9/11/2026 • Community & Local Opposition • General
NTT's proposed 173-acre Mesa data center faces organized community opposition and new council meeting restrictions in Mesa, Arizona, following late-January disruptions.
8/15/2026 • Community & Local Opposition • General
Sahuarita residents raised concerns at a town hall about possible data centers, while Town Manager Shane Dille said no developer has submitted an application and officials are drafting zoning rules.
8/11/2026 • Community & Local Opposition • General
Phoenix event speakers in Arizona said data center expansion needs transparency and early neighborhood engagement to address rising health-related community opposition.
6/18/2026 • Community & Local Opposition • General
During local zoning reviews, Arizona county officials are being urged to assess data centers' continuous power demand, cooling-water needs and neighborhood impacts.
9/30/2026 • Community & Local Opposition • General
Arizona candidates and officials are contesting data center expansion, tax incentives, water obligations, and electricity costs statewide ahead of elections.
Arizona Attorney General Kris Mayes called for a statewide pause on new artificial intelligence data centers in Arizona, citing power and water pressures and planned development in Ahwatukee.
The Arizona Corporation Commission unanimously approved Wednesday in Arizona a review process requiring cooperative utilities to secure approval for large-load service agreements.
In 2026, Arizona Gov. Katie Hobbs and lawmakers enacted a three-year moratorium on data center tax incentives while pursuing utility reporting changes under Arizona Corporation Commission rate authority.
Arizona residents and officials are challenging data center expansion in Phoenix and elsewhere as Arizona Public Service seeks higher rates and lawmakers pause new tax incentives.
Project 48 Arizona recently launched a billboard campaign and online data center dashboard in Arizona, promoting economic benefits amid opposition over water and electricity.
9/25/2026 • Community & Local Opposition • General
Arizona data center operators and utilities support a growing cluster of 83 tracked facilities, concentrated in Maricopa County around Phoenix, with projects at several development stages.
9/28/2026 • Infrastructure & Site Development • General
Priya Sundareshan said a three-year moratorium on new data center tax giveaways should be tightened after concerns about water use, renewables sourcing, and grid strain.
Arizona lawmakers in 2026 adopted a three-year moratorium on new data center tax incentives to reassess taxpayer value amid grid and water planning challenges.
Candidates and state officials in Arizona and Pennsylvania are using data center construction, tax incentives, water consumption, and electricity costs in midterm campaigns and policy debates.
Arizona Attorney General Kris Mayes urged Governor Katie Hobbs and the Legislature to halt new data-center approvals and construction statewide until Arizona develops water and power plans.
Arizona Attorney General Kris Mayes urged Governor Katie Hobbs and state lawmakers to pause new data-center approvals statewide as Glendale considers annexing Project Eagle amid water, power, and community concerns.
Arizona Attorney General Kris Mayes is seeking a statewide pause on new AI data center approvals before an October 14 Ahwatukee town hall on a proposed Menlo Digital campus.
Arizona Attorney General Kris Mayes called for a statewide pause on new data center approvals and construction amid rising power costs, water shortages, and community opposition.
Arizona Attorney General Kris Mayes urged a pause on new data centers, while Governor Katie Hobbs opposed a statewide moratorium amid water and grid concerns across Arizona.
Legislative District 18 candidates debated Arizona data-center approvals and incentives Thursday in Tucson, dividing over statewide planning and a temporary moratorium.
Arizona Gov. Katie Hobbs announced a three-year moratorium on state data-center tax incentives starting July 1 to reassess groundwater, utility strain, and local impacts.
Arizona lawmakers passed an $18.3 billion budget package on Wednesday that includes a three-year pause on subsidizing new data centers and full conformity to federal tax cuts.
6/11/2026 • Project Finance & Incentives • General
Arizona state leaders announced a budget deal on the moratorium timing for new data center tax exemptions, excluding existing recipients and tying future eligibility to investment thresholds.
6/10/2026 • Project Finance & Incentives • General
Arizona Attorney General Kris Mayes intervened in an Arizona Public Service rate case in 2025 over a proposed 14% residential increase tied to grid and data-center infrastructure needs.
Arizona ACC incumbents Kevin Thompson and Nick Myers debate whether data centers should pay their own infrastructure costs and how water should be managed for large loads.
Arizona Attorney General Kris Mayes asked lawmakers and Governor Katie Hobbs to pause new data center approvals statewide amid power costs, water scarcity, and opposition in Pinal County and Ahwatukee.
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