Southwestern Public Service Co electricity rates

It serves 222,146 residential customers in Texas. At 13.35¢ per kilowatt-hour it is one of the cheaper places to buy electricity in Texas, 18.8% under the statewide average of 16.44¢.

Consumption is close to the national norm at 957 kilowatt-hours a month against 871, so the rate translates fairly directly into the bill.

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 197 minutes without electricity across 1.19 interruptions. The median across the 941 utilities that report this is 185 minutes.

That is worse than typical. Overhead lines through wooded or storm-exposed terrain are the usual explanation, and the fix is vegetation management and circuit automation, both of which are recovered through rates.

Southwestern Public Service Co offers time-of-use pricing to residential customers. 47 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.