Who Pays for Arizona’s Growing Power Demand? What Businesses Should Review

On October 9, 2026, Arizona Attorney General Kris Mayes asked the Arizona Corporation Commission to investigate whether APS’s Power Supply Adjuster shifted nearly $600 million in costs from large energy users to other customers. APS and the Commission’s executive director dispute the underlying analysis. This is a request for investigation, not a finding of wrongdoing or an approved rate increase. For Arizona commercial owners and operations managers, it is a reminder to understand how energy costs reach your facility before committing to expansion or equipment. Review your current tariff, demand charges, adjustment charges, 12 months of bills and available interval usage data. If you are adding a major load, confirm utility capacity, service-upgrade costs, deposits and the expected energization schedule. Solar, batteries and load management may address some cost or resilience needs, but savings and backup capability require site-specific evaluation; a battery does not eliminate every utility charge. A Peak Ready Energy time-to-power assessment organizes your electrical capacity, critical loads, rate exposure and project deadline so you can identify the questions that need answers before investing. Request your preliminary facility assessment at https://www.peakreadyenergy.com/request-assessment. Source: Arizona Attorney General’s Office, October 9, 2026 — https://www.azag.gov/press-release/attorney-general-mayes-urges-arizona-corporation-commission-investigate-whether-aps