Southwestern Public Service Rates, Bills and Service Area

Southwestern Public Service reported 324,888 residential customers on bundled service in 2025, using 948 kWh a month on average at 13.59 cents per kWh. Bundled means the utility supplies the energy and delivers it, so the price covers both. Among the 64 Texas utilities with at least 10,000 bundled residential customers, Southwestern Public Service ranks 37 from the lowest price.

Figures cover all of Southwestern Public Service's states together. A utility with a large territory can have different rates in different places.

Source: U.S. Energy Information Administration, Form EIA-861 (final 2025 data), sales to ultimate customers. Price is revenue divided by sales and includes fixed charges.

EIA lists the counties where Southwestern Public Service has distribution equipment. That covers 51 counties in Texas, New Mexico. A county can be served by more than one utility, so confirm your address with the utility or your bill.

Not sure who serves your address? Use find my electric company.

For 2025, Southwestern Public Service reported an average of 151 minutes without power per customer and 1.31 interruptions per customer, with major event days left out. The typical interruption lasted about 115 minutes. For comparison, the median state averaged 127 minutes of outage per customer.

Southwestern Public Service had about 24 more minutes of outage per customer than the median state. The Texas figure across its utilities was 158 minutes. One interruption lasting 115 minutes and 1.31 interruptions a year per customer add up to the 151 minute total.

Source: U.S. Energy Information Administration, Form EIA-861 (final 2025 data), reliability schedule, measured under IEEE 1366. Utilities define events slightly differently, so compare with care.

• Time-of-use pricing. Southwestern Public Service reports a residential time-of-use pricing program in its 2025 EIA filing, with about 69 residential customers enrolled in dynamic pricing programs of all kinds. Ask the utility which rate schedules you qualify for. How time-of-use rates work.
• Rooftop solar and net metering. EIA shows 2,240 residential net-metered systems on the Southwestern Public Service grid in 2025, with 21.1 megawatts of capacity. How net metering works.

A private company owned by shareholders. A state commission reviews its costs and sets or approves its rates in formal rate cases. In Texas, that review is done by the Public Utility Commission of Texas.

Southwestern Public Service is an investor-owned utility based in Texas, and it also reports customers in 1 other state.

Southwestern Public Service operates in the SPP power market. Power markets set wholesale costs, but your retail rate is set by the rules described above.

Of the 82 utilities listed for Texas, Southwestern Public Service is the 9th largest by homes, at roughly 1.7% of the state total. Texas has too few other investor-owned utilities with reported prices to compare Southwestern Public Service with its type, so the state average of 15.40 cents per kWh is the fairest yardstick. At $128.85 a month, an average Southwestern Public Service home pays about $505 a year less than the Texas average of $170.95, and uses 162 kWh a month less. Southwestern Public Service reports customers in 2 states, and this profile uses its largest, Texas, for comparisons. 2,240 of its residential customers use net metering, or 6.9 per 1,000 homes, against 10.9 for Texas as a whole.

Source: U.S. Energy Information Administration, Form EIA-861 (final 2025 data). Peers are other utilities of the same type in Texas with at least 1,000 residential customers and a reported price.

See every one on the electric companies in Texas page.

Kilowatt Atlas is not Southwestern Public Service and does not take payments, start service or manage accounts. To pay a bill, report an outage or start service, use the website, app or phone number printed on your bill. Be careful with search ads and lookalike sites that offer to pay your bill for a fee.

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