New Mexico · Investor Owned

Southwestern Public Service Co Electricity Rates

Average residential price, customers served and derived annual usage from EIA Form 861, 2024 release.

11.98¢
Avg residential price / kWh
100.5K
Residential customers
-17.4%
vs New Mexico average
$1,432
Implied avg annual bill

Southwestern Public Service Co charged an average of 11.98¢ per kWh to residential customers in 2024 - below the New Mexico average and far below the US average.

Southwestern Public Service Co is investor owned - a shareholder-owned company whose retail rates are set through a state regulatory commission. Its reported average residential price is below the New Mexico customer-weighted average (-17.4%). Its customers used above the national residential norm at about 11,953 kWh a year each.

How this price compares

Ranked by price against the 24 utilities reporting residential rates in New Mexico, Southwestern Public Service Co comes 5th of 24. The state's range runs from Central Valley Elec Coop, Inc at 8.91¢ to Tri-County Electric Coop, Inc (OK) at 38.00¢, so where a household sits inside New Mexico depends far more on which utility serves it than on the statewide average alone.

Against the 2 other investor owned utilities reporting in New Mexico, which averaged 12.87¢, Southwestern Public Service Co is close to its own ownership class within the state (-6.9%).

All figures come from the 2024 release, so no comparison mixes vintages. The state figure is customer-weighted across 24 reporting utilities.

Where Southwestern Public Service Co sits among New Mexico utilities

2024 average residential price across the 24 utilities reporting a rate in New Mexico

11.98¢/kWh Top 21% most affordable More affordable than 83% of 23 other utilities

Southwestern Public Service Co

average residential price, equal-width bands

Each bar spans 2¢/kWh. Taller bars contain more utilities; the dashed marker locates this utility. Hover, focus or tap a bar for its exact count and share.

Source EIA Form 861 · 2024

Southwestern Public Service Co average residential price against three benchmarks, 2024
BenchmarkPrice / kWhDifference
Southwestern Public Service Co 11.98¢ -
New Mexico (customer-weighted, 24 utilities) 14.51¢ -17.4%
United States average 16.48¢ -27.3%
Investor Owned utilities nationally (183) 17.36¢ -31.0%

Rate against consumption: New Mexico utilities

Each dot is one of the 24 New Mexico utilities reporting both a residential price and residential sales in 2024, placed by its rank percentile within that group rather than its raw value, so one very large utility cannot flatten the rest. Bubble size follows customers served, rank-scaled so a utility with millions of customers cannot swamp the rest. Southwestern Public Service Co is highlighted. In New Mexico the cheapest rate belongs to Central Valley Elec Coop, Inc (8.91¢) while the smallest implied annual bill belongs to Tri-County Electric Coop, Inc (OK) ($633) - a household's bill is price multiplied by consumption, so the two rankings are different lists. 2×2 strategic matrix plotting 24 entities by Price rank percentile (100 = most expensive in state) (X) and Consumption rank percentile (100 = heaviest use) (Y), with a crosshair dividing the plot into four quadrants. Costly rate, heavy useCheaper rate, heavy useCostly rate, light useCheaper rate, light use -50050100150 -50050100150 Price rank percentile (100 = most expensive in state) Consumption rank percentile (100 = heaviest use)
Each dot is one of the 24 New Mexico utilities reporting both a residential price and residential sales in 2024, placed by its rank percentile within that group rather than its raw value, so one very large utility cannot flatten the rest. Bubble size follows customers served, rank-scaled so a utility with millions of customers cannot swamp the rest. Southwestern Public Service Co is highlighted. In New Mexico the cheapest rate belongs to Central Valley Elec Coop, Inc (8.91¢) while the smallest implied annual bill belongs to Tri-County Electric Coop, Inc (OK) ($633) - a household's bill is price multiplied by consumption, so the two rankings are different lists.

Scale and consumption

Southwestern Public Service Co reported 100.5K residential customers, ranking 2nd of 24 utilities in New Mexico by customers served and covering 11.3% of the state's reported residential customers.

Dividing reported residential sales by customers served gives about 11,953 kWh per customer per year - above the national residential norm, implying a typical annual bill near $1,432.

Within New Mexico the median reporting utility sells about 7,694 kWh per customer, so Southwestern Public Service Co customers use +55.4% against their own state's middle. Consumption this heavy usually tracks electric heating, sustained air-conditioning load or a largely detached-housing territory, which makes the price per kWh bite harder here than the headline rate suggests.

Every utility reporting in New Mexico

All 24 utilities reporting bundled residential service in New Mexico, largest first, with Southwestern Public Service Co marked. The named companies either side of it are the ones a household in this state might otherwise be served by.

Residential utilities in New Mexico, 2024, ranked by customers served
Utility Ownership Customers Avg ¢/kWh
Public Service Co of NM Investor Owned 492.9K 15.57¢
Southwestern Public Service Co (this page) Investor Owned 100.5K 11.98¢
El Paso Electric Co Investor Owned 94.8K 10.16¢
City of Farmington - (NM) Municipal 36.0K 12.69¢
Jemez Mountains Elec Coop, Inc Cooperative 28.1K 15.36¢
Kit Carson Electric Coop, Inc Cooperative 26.1K 18.18¢
Continental Divide El Coop Inc Cooperative 20.4K 16.02¢
Central New Mexico El Coop, Inc Cooperative 19.1K 17.16¢
Otero County Electric Coop Inc Cooperative 16.4K 17.65¢
Farmers Electric Coop, Inc - (NM) Cooperative 10.3K 12.87¢
Navajo Tribal Utility Authority State 9.8K 16.53¢
Los Alamos County Municipal 7.7K 14.15¢
Lea County Electric Coop, Inc - (NM) Cooperative 7.2K 10.07¢
Central Valley Elec Coop, Inc Cooperative 6.2K 8.91¢
Roosevelt County Elec Coop Inc Cooperative 3.9K 12.07¢
Sunrun Inc. Behind the Meter 3.3K 13.59¢
Springer Electric Coop, Inc Cooperative 2.5K 19.01¢
Navopache Electric Coop, Inc Cooperative 1.5K 14.94¢
Southwestern Electric Coop Inc - (NM) Cooperative 1.4K 24.09¢
Sunnova Behind the Meter 866 20.07¢
Tesla Inc. Behind the Meter 350 15.82¢
Rio Grande Electric Coop, Inc Cooperative 232 18.30¢
Palmetto Solar, LLC Behind the Meter 10 10.44¢
Tri-County Electric Coop, Inc (OK) Cooperative 3 38.00¢

For generation mix and price history statewide, see electricity rates in New Mexico.

Common questions about Southwestern Public Service Co rates

How much does Southwestern Public Service Co charge per kWh?
Southwestern Public Service Co reported an average residential price of 11.98¢ per kWh across its bundled residential customers in the 2024 EIA Form 861 release. That is an annual average across all its residential customers, not a rate schedule, so an individual bill depends on the tariff, usage pattern and season.
Is Southwestern Public Service Co expensive compared with the rest of New Mexico?
Its average residential price is below the New Mexico customer-weighted average of 14.51¢ per kWh, a difference of -17.4%. The state figure is weighted by customers across the 24 utilities reporting residential service in New Mexico.
What is the average electricity bill for Southwestern Public Service Co customers?
Dividing reported residential sales by residential customers gives about 11,953 kWh per customer per year. At the reported average price that implies roughly $1,432 a year, or about $119 a month. This is RateWatt's arithmetic on two EIA columns, not a figure EIA publishes.
Who owns Southwestern Public Service Co?
EIA classifies Southwestern Public Service Co as Investor Owned, a shareholder-owned company whose retail rates are set through a state regulatory commission. Nationally, Investor Owned utilities averaged 17.36¢ per kWh in the 2024 release.

What this page does and does not tell you

  • An average across bundled residential customers for the year, revenue divided by sales, not a rate schedule.
  • Form 861 presence is not evidence of availability at an address or of customer choice.

See our methodology, why energy prices vary and understanding rate structures.

Source: U.S. Energy Information Administration (EIA), Form 861 annual electric power industry report, 2024 release. Retrieved and formatted by RateWatt.

Disclaimer: This information is provided for informational purposes only and does not constitute professional or financial advice. Data is sourced from the U.S. Energy Information Administration (EIA). Rates change and averages do not describe any individual account. Consult your utility or a qualified professional before making decisions based on this data.

Every figure on RateWatt is rendered directly from official U.S. Energy Information Administration (EIA) data, no number is typed in by an editor. Average price, customers and sales are reported by EIA Form 861 (2024). Per-customer annual usage, the implied annual bill, the customer-weighted state average and every percentage difference are RateWatt's arithmetic on those reported columns. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2025.