https://solarexaminer.com/tags/wyoming/Recent content in Wyoming on Solar ExaminerHugoen-usSolar ExaminerSun, 04 Oct 2026 00:00:00 +0000https://solarexaminer.com/posts/wyoming-electricity-rate-changes-2026/Sun, 04 Oct 2026 00:00:00 +0000https://solarexaminer.com/posts/wyoming-electricity-rate-changes-2026/<p>Wyoming did not have a rate change on October 1, 2026. Rocky Mountain Power, the state&rsquo;s largest utility, lowered one charge on July 1 and has a general increase pending for 2027.</p> <p>This article covers Rocky Mountain Power and Black Hills Energy&rsquo;s northeast Wyoming system. It does not cover Cheyenne Light, Fuel and Power or the cooperatives.</p> <h2 id="quick-summary">Quick Summary</h2> <table> <thead> <tr> <th>Item</th> <th>Utility</th> <th>Date</th> <th>Residential impact</th> <th>Status</th> </tr> </thead> <tbody> <tr> <td>Energy cost adjustment</td> <td>Rocky Mountain Power</td> <td>July 1, 2026</td> <td>About −$4.50 a month at 700 kWh</td> <td>In effect</td> </tr> <tr> <td>General rate case</td> <td>Rocky Mountain Power</td> <td>2027</td> <td>8.8% requested; 3.9% net for residential</td> <td>Pending</td> </tr> <tr> <td>Rate case</td> <td>Black Hills Energy (Upton, Newcastle)</td> <td>Disputed start date</td> <td>About +$32 a month (32%)</td> <td>Hearing Oct. 7 and 8, 2026</td> </tr> </tbody> </table> <h2 id="rocky-mountain-power">Rocky Mountain Power</h2> <p><strong>The request.</strong> In May 2026 the company asked the Wyoming Public Service Commission (PSC) for $70.5 million, an 8.8% general rate increase, for 2027. The PSC review takes about 10 months.</p>