Court Keeps Arizona Solar Fee Blocked
Installers and financiers of rooftop solar in Arizona face a surcharge that remains blocked while APS seeks Supreme Court review.
Updated on Nov. 4, 2026 in Utilities
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The Arizona Court of Appeals rejected Arizona Public Service's second attempt to revive a monthly fee on rooftop solar customers. The surcharge, approved in a 2024 rate increase, would have added $2 to $3 a month to bills for solar customers, and the utility intends to ask the Arizona Supreme Court to review the case.
Why it matters
The ruling keeps the surcharge blocked for now, and the court found regulators approved the charge without letting opponents challenge it, which is a procedural point that shapes how future rate changes for distributed generation can be contested. For businesses that install, finance, or service rooftop solar in Arizona, the outcome affects the economics of customer-owned generation.
The figures come from the Corporation Commission's 2024 rate order, which set the surcharge at $2 to $3 per month for solar customers, or $24 to $36 per year for affected households. The dispute covers only this added charge, not the broader Arizona Public Service rate increase, and the court did not dispute the commission's authority to set the rate.
The players
Arizona Public Service
Arizona's largest electric utility, a regulated monopoly whose rate cases set the prices and charges paid by its residential and commercial customers.
Arizona Corporation Commission
The state body that regulates Arizona's investor-owned utilities, approving rates, charges, and rate structures that businesses and households pay for electricity.
Arizona Court of Appeals
The intermediate appellate court whose rulings can reshape how regulated utility charges are approved and challenged in Arizona.
Arizona Attorney General's Office
The state's chief legal office, which opposed the solar charge and sought to present economic testimony against it in the rate proceeding.
Arizona Supreme Court
The state's highest court, which APS intends to ask to review the appellate ruling blocking its rooftop solar surcharge.
The details
Arizona Public Service argued that supplying electricity when rooftop panels fail or generate too little power creates extra costs, and the fee was meant to cover that gap. The appeals court blocked the charge in June after finding opponents were not given a full and fair opportunity to contest it. It then rejected a second attempt by the utility to revive the charge, and the court also found the utility had not shown that solar customers drove up costs. An administrative law judge had earlier stopped testimony from an economist representing the Arizona Attorney General's Office.
Timeline
2024: Corporation Commission approved the rate increase that included the solar customer charge.
December 2024: A rehearing was held where pro-solar groups presented their position.
June: The Court of Appeals blocked the solar charge.
November 4, 2026: The Court of Appeals rejected APS's second attempt to revive the fee.
Market Landscape
The case sits inside the broader dispute over how regulated utilities recover costs from customers who generate their own power, a question Arizona regulators have been weighing through rate cases. The court's focus on procedure rather than the merits of the cost argument shapes the arena in which future charges for rooftop solar customers will be fought.
Businesses that install, finance, or service rooftop solar in Arizona should track whether the surcharge stays blocked or returns, since it changes the monthly cost of customer-owned generation. Owners of solar-equipped commercial sites should review how any future charge would appear on their bills with qualified accountants or energy advisors.
The takeaway
Regulated utility charges for rooftop solar can be stopped on procedural grounds even when the utility's cost argument is not fully rejected, so operators should watch how the commission reopens the process. Businesses with solar in their operations should file away the Arizona Supreme Court's decision on whether to hear the case, since it will determine whether this charge is revived.
What happens next
APS intends to ask the Arizona Supreme Court to review the case, and the Corporation Commission's Office of General Counsel is reviewing the ruling.
Further reading
For the wider backdrop on how electricity charges get set and challenged, see Utilities coverage in Arizona.
Source note: This article includes information reported by The Cool Down.
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