Southwestern Public Service Co electricity rates

It serves 100,540 residential customers in New Mexico. At 11.98¢ per kilowatt-hour it is one of the cheaper places to buy electricity in New Mexico, 15.2% under the statewide average of 14.12¢.

Its customers use more electricity than the national norm, 996 kilowatt-hours a month against 871, which amplifies whatever the rate does.

A shareholder-owned company whose rates are set by the state regulator, including an approved return on the capital it has invested. That matters because a bill is not only the cost of generating electricity: it also carries the cost of the network, and who owns that network changes how it is paid for.

In 2024 the average Southwestern Public Service Co customer went 152 minutes without electricity across 1.24 interruptions. The median across the 941 utilities that report this is 185 minutes.

That is better than the typical American utility, though the figure includes major storm days and can move sharply from one year to the next.

Southwestern Public Service Co offers time-of-use pricing to residential customers. 10 households were enrolled, about 0.1% of its residential base.

These plans are opt-in almost everywhere. They reward households that can move laundry, dishwashing, water heating or electric vehicle charging out of the late-afternoon peak, and they cost more than the standard rate for households that cannot. How to tell which group you are in.

2,161 residential customers had net-metered solar in 2024, totalling 20.6 megawatts. That works out to 21.5 installations per thousand customers, against a median of 8 across the utilities reporting it.

Adoption is above the national median, which generally tracks the retail rate more closely than it tracks sunshine. What exports are actually worth.