Southwestern Public Service Co Rates: Average Bill & Price per kWh

Residential rates for Southwestern Public Service Co and how they compare to the New Mexico average — 2024 EIA-861 annual data.

Data through 2024 EIA-861, verified Oct 11, 2026

Residential customers of Southwestern Public Service Co average $119.31/month at 11.98¢/kWh — below the New Mexico average of $121.22.

Avg bill (2024)$119.31/moannual average Rate11.98¢/kWh Res. customers100,540 Bill rank#1 in NMof tracked utilities

Where Southwestern Public Service Co rates are heading

Annual residential figures from Form EIA-861, 2019–2024.

Southwestern Public Service Co price per kWh (annual) ▲ 24.2% over 2019–2024
Southwestern Public Service Co price per kWh (annual) 9.6¢ 11.2¢ 12.7¢ 12.0¢ 2019 2024
YearRateAvg billRes. customers
2019 9.65¢/kWh $97.21/mo 96,964
2020 9.85¢/kWh $102.87/mo 97,747
2021 10.8¢/kWh $103.45/mo 98,490
2022 12.7¢/kWh $129.61/mo 99,338
2023 11.77¢/kWh $118.21/mo 99,886
2024 11.98¢/kWh $119.31/mo 100,540

Rate context in New Mexico

Statewide residential price trend (12 months) — context for Southwestern Public Service Co's 2024 annual figure.

New Mexico price per kWh (12 months) ▼ 4.7% over Jul 25–Jun 26
New Mexico price per kWh (12 months) 14.1¢ 15.3¢ 16.5¢ 15.1¢ Jul 25 Jun 26

Southwestern Public Service Co vs its state

Annual utility averages next to the latest statewide monthly figure — different windows, both labeled.

MeasureSouthwestern Public Service…New Mexico (latest month)
Avg bill $119.31/mo $121.22/mo
Rate 11.98¢/kWh 15.06¢/kWh

Common questions

How much is the average electric bill with Southwestern Public Service Co?

Southwestern Public Service Co residential customers averaged $119.31 per month in 2024 (EIA-861 annual data) — about $1,431.74 per year.

What does Southwestern Public Service Co charge per kWh?

Southwestern Public Service Co averaged 11.98¢ per kWh for residential service in 2024 (annual revenue divided by sales, EIA-861). Actual rates depend on your plan and season.

How does Southwestern Public Service Co compare to the New Mexico average?

Southwestern Public Service Co bills average $119.31 — lower than the New Mexico average of $121.22 (latest EIA month).

How many customers does Southwestern Public Service Co serve?

Southwestern Public Service Co served 100,540 residential customers in 2024, per EIA-861 — one of the largest utilities we track in NM.

Data: Form EIA-861, 2024 annual residential figures for Southwestern Public Service Co. Bill = residential revenue ÷ customers ÷ 12; rate = revenue ÷ sales. State context uses the latest EIA monthly data. See methodology.