Sonora returns to standard domestic rates without the summer subsidy starting November 1

Sonora returns to its standard domestic rate scheme starting November 1, 2026, when the summer subsidy from the Comisión Federal de Electricidad (CFE) ends, the company announced on October 30. The support covered the seven months from April to October across the state's 72 municipalities, according to the agreement signed between the state government and the CFE, as reported by Excélsior on October 23.

During that period, rate 1F was applied uniformly, a domestic category that the federal scheme reserves for localities with an average minimum summer temperature of 33 degrees Celsius or higher. The agreement also reduced consumption brackets from four to three, with the aim of letting households use more kilowatts (kWh) at preferential prices, according to the presentation by Governor Alfonso Durazo Montaño as reported by the newspaper. The measure sought to cushion the intensive use of cooling systems during the hottest months.

The change matters beyond the state bill. The CFE confirmed that the federal support applies to domestic-rate users and depends on each locality's rate classification, so the same cutoff date affects warm-climate states such as Baja California, Baja California Sur, Sinaloa, Nayarit, Coahuila, Nuevo León, Tamaulipas and Chihuahua, in addition to Sonora, according to Infobae.

With the return of off-summer consumption brackets, the first subsidized consumption blocks shrink and the same volume of energy can be billed at higher rates. The effect is concentrated in households that keep air conditioning or mini-split units running for long periods. The CFE clarified that the end of the support does not mean a single or automatic increase to every rate, and recommended reviewing rates, brackets and savings tips at cfe.mx. The company also noted that resistance heaters, which start being used in winter, can generate considerable consumption when operated for many hours.

The next checkpoint will be the first bill covering days in November, where users can compare the rate section and the kWh billed with those of the previous two-month period. For households with a high monthly average, checking the current rate table will help anticipate whether consumption crosses the threshold into the high-consumption rate (DAC).

This article was written with the assistance of artificial intelligence from verified sources and reviewed by a human editor before publication.