New Mexico · Investor Owned · investor
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
Among 194 utilities with 100,000 or more residential customers, Southwestern Public Service Co ranks #166 by average cents per kWh and #193 by residential customers. 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 Form 861 US customer-weighted average.
San Diego Gas & Electric Co ranks #1 of 194 by average residential cents per kWh (43.63¢, 307,982 customers, customers rank #90). Florida Power & Light Co ranks #1 of 194 by residential customers (5,236,277 customers at 13.71¢, price rank #122). The highest average rate is not the largest customer count. 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.
- San Diego Gas & Electric Co 43.63¢ · customers rank #90
- Florida Power & Light Co 5,236,277 customers · price rank #122
Highest average rate is not the most customers
Residential customers for the average-rate #1 and customers #1 utilities among 194 with 100,000 or more residential customers
- FL size
Florida Power & Light Co
5,236,277 residential customers
- CA rate 307,982
San Diego Gas & Electric Co
307,982 residential customers
What this shows San Diego Gas & Electric Co ranks #1 of 194 by average residential cents per kWh (43.63¢, 307,982 customers, customers rank #90). Florida Power & Light Co ranks #1 of 194 by residential customers (5,236,277 customers at 13.71¢, price rank #122). The highest average rate is not the largest customer count.
EIA Form 861 utility filing desk
Release NM-2024 · Southwestern Public Service Co WELL BELOW STATE
Southwestern Public Service Co · Form 861 2024 · WELL BELOW STATE
- RATE 11.98¢/kWh
- RANK #5/24
- VS-ST -17.4%
- VS-US -30.0%
- CUST 101k
- BILL $1,432
- OWN IOU
- PHOTO TX 0.05¢
- BOOK 193/194
Nearest Form 861 price peer: Southwestern Electric Power Co (TX) (+0.05¢ gap)
EIA Form 861 residential filing stamps for this utility record. Read with this utility → · New Mexico rates
Southwestern Public Service Co in the Form 861 price neighbourhood
Average residential ¢/kWh among this utility and nearest indexable peers
- KY
Kentucky Utilities Co
12 ¢/kWh
- WA
Avista Corp
12 ¢/kWh
- LA
Dixie Electric Membership Corp - (LA)
12 ¢/kWh
- this util
Southwestern Public Service Co
12 ¢/kWh
- TX
Southwestern Electric Power Co
12 ¢/kWh
What this shows Southwestern Public Service Co reports 11.98¢/kWh, corpus customer-rank 193 of 194.
RateWatt cost context
How Southwestern Public Service Co compares on reported cost context
A weighted comparison, not a tariff quote, reliability grade, service-quality score, or recommendation. Lower price and lower implied annual bill score better against reporting utilities in New Mexico; the state generation context is shown separately.
- Price against state peers
- 83/100
- Implied annual bill against state peers
- 17/100
- State renewable generation context
- 80/100
11.98¢/kWh · median 15.47¢/kWh
$1,432/yr · median $1,205/yr
53.4% · median 22.8%
Weights: 50% price, 30% implied annual bill, 20% state renewable-generation context. Unreported inputs are excluded and the remaining weights are redistributed. Price and bill use EIA Form 861 (2024); generation context uses EIA state generation data (2025) and is not attributed to this provider.
Rate comparison
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, whose customer-weighted average is 14.70¢, Southwestern Public Service Co is below its own ownership class within the state (-18.5%).
State price distribution
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
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
| Benchmark | Price / kWh | Difference |
|---|---|---|
| Southwestern Public Service Co | 11.98¢ | - |
| New Mexico (customer-weighted, 24 utilities) | 14.51¢ | -17.4% |
| US Form 861 customer-weighted average (1.5K utilities) | 17.11¢ | -30.0% |
| Investor Owned customer-weighted US avg (183 utilities) | 18.37¢ | -34.8% |
Rate against consumption: New Mexico utilities
Territory and usage
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 - +55.4% against the New Mexico median of 7,694 kWh , implying a typical annual bill near $1,432.
State peers
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.
| 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.
Ownership class peers
Investor Owned utilities with similar residential prices
Beyond New Mexico, these indexable investor owned utilities report the closest residential averages to Southwestern Public Service Co in the same Form 861 release. Peer sets differ by ownership class and price, not a shared national list.
| Utility | State | Customers | Avg ¢/kWh |
|---|---|---|---|
| Southwestern Electric Power Co | Texas | 156.3K | 12.03¢ |
| Avista Corp | Washington | 246.1K | 11.87¢ |
| Kentucky Utilities Co | Kentucky | 450.7K | 11.85¢ |
| Oklahoma Gas & Electric Co | Oklahoma | 710.1K | 11.78¢ |
| Idaho Power Co | Idaho | 525.8K | 11.76¢ |
FAQ
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, the customer-weighted average across Investor Owned utilities was 18.37¢ per kWh in the 2024 Form 861 release.
Limitations
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 and why energy prices vary .
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, the Form 861 US customer-weighted average, the ownership-class customer-weighted average, and every percentage difference are RateWatt's arithmetic on those reported columns, never the separate EIA retail-sales statewide series. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2025.