
On a recent Friday, a Maricopa County Superior Court made the call to dismiss a legal challenge against the Arizona Corporation Commission (ACC) over its Formula Rate Policy, a decision that has been met with nods of approval from the Commission. The lawsuit, filed by the Residential Utility Consumer Office, aimed to strike down the Commission's approach to how utilities can propose rate adjustments. The court, however, maintained that the policy was within bounds and sent the case packing.
In a statement obtained by the Arizona Corporation Commission, General Counsel for the Commission, Thomas Van Flein, praised the judge's thoroughness, “the judge was exceptionally thorough and granted the parties an unprecedented three hours for oral argument after extensive briefing. In addition, the court was prompt and efficient. The decision is well-reasoned if not impeccable.” It's clear from the ruling that the Formula Rate Policy isn't a change to the rules or a requirement but another method for utilities to request rate changes—still squarely under the eye of the Commission.
Chair of the ACC, Kevin Thompson, was quick to herald the ruling as more than just a procedural victory. He said, "Today’s ruling is a significant win for the Commission and Arizona," lauding the court for upholding the constitutional authority of the ACC to make policy and rules in its ratemaking capacity, according to the Arizona Corporation Commission. Thompson underscored the benefits, pointing out that the policy would mitigate regulatory lag, ensure grid reliability, and shield customers from sudden, steep rate increases.
ACC Vice Chair Nick Myers echoed this sentiment of relief and vindication, "I’m pleased with the Superior Court’s decision to uphold the Commission’s Formula Rate Policy.” According to a statement by Myers, he expressed gratitude towards the judge's diligence, “I want to extend my sincere thanks to the judge for the thoughtful and thorough consideration given to this case. The court’s ruling affirms the integrity of our process and allows us to move forward confidently. I look forward to evaluating future formula rate proposals from utilities in a way that ultimately benefits Arizona’s ratepayers by promoting transparency, regulatory efficiency, and accountability," as reported by the Arizona Corporation Commission.
It's worth noting that the details of this legal affair are publicly accessible. The ruling and related case documents are available on the Maricopa County Superior Court's website, under Docket No. CV 2025-011288 for those who want to delve into the nitty-gritty of the proceedings.









