https://solarexaminer.com/tags/arizona/Recent content in Arizona on Solar ExaminerHugoen-usSolar ExaminerSun, 04 Oct 2026 00:00:00 +0000https://solarexaminer.com/posts/arizona-electricity-rate-changes-2026/Sun, 04 Oct 2026 00:00:00 +0000https://solarexaminer.com/posts/arizona-electricity-rate-changes-2026/<p>Arizona did not have an approved rate change at its largest regulated utility on October 1, 2026. Arizona Public Service (APS) and Tucson Electric Power (TEP) both have increases pending before the Arizona Corporation Commission (ACC).</p> <p>This article covers APS, which serves about 1.5 million customers, and TEP, which serves about 455,000. Salt River Project (SRP) sets rates through its own board and is not covered.</p> <h2 id="quick-summary">Quick Summary</h2> <table> <thead> <tr> <th>Item</th> <th>Utility</th> <th>Status</th> <th>Residential impact</th> </tr> </thead> <tbody> <tr> <td>Last base rate increase</td> <td>APS</td> <td>Effective March 1, 2024</td> <td>About 8.3%, $10 to $12 a month</td> </tr> <tr> <td>Pending rate case</td> <td>APS</td> <td>Vote due by Dec. 31, 2026</td> <td>About 16%, roughly $20 a month (request)</td> </tr> <tr> <td>Pending rate case</td> <td>TEP</td> <td>Not decided; TEP expects approval in late 2026</td> <td>About 12%, $12.92 a month at 638 kWh (request)</td> </tr> <tr> <td>October 1, 2026</td> <td>APS</td> <td>n/a</td> <td>No approved change found</td> </tr> </tbody> </table> <h2 id="aps-what-is-proposed">APS: What Is Proposed</h2> <ul> <li><strong>Revenue:</strong> $579.2 million.</li> <li><strong>Bills:</strong> an average 16% for residential customers, about $20 a month, according to KJZZ. Small, medium and large businesses would see 6% to 8%. Data centers would see about 45%.</li> <li><strong>Return on equity:</strong> APS asked for 10.7%. The state&rsquo;s residential consumer office recommended about 9%.</li> <li><strong>Formula rates:</strong> APS wants annual formula-based adjustments for five years in place of traditional rate cases. Consumer advocates say that would mean yearly increases with less scrutiny.</li> </ul> <p><strong>Timeline, per the Arizona Corporation Commission:</strong> the hearing began May 18, 2026 and concluded July 7 after 31 days. The administrative law judge&rsquo;s Recommended Opinion and Order is expected by late November 2026. The deadline for the commission to vote on it is December 31, 2026. New rates are expected in early 2027.</p>