Southwestern Electric Co-op electricity rates
Electric cooperative · New Mexico · WECC region
Southwestern Electric Co-op is a member-owned electric cooperative, so its customers own it and elect its board, serving 1,435 homes in New Mexico. Its residential customers pay an average of 25.72¢/kWh including fixed and delivery charges, 43% more than the U.S. average.
Rate basis: EIA-861 2025 annual data, adjusted to the 12 months ending 2026-07 using the state's price trend.
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Southwestern Electric Co-op bill estimates
| Monthly use | At average all-in rate | Base tariff charges* |
|---|---|---|
| 500 kWh | $128.60 | $97.00 |
| 1,000 kWh | $257.20 | $159.00 |
| 1,500 kWh | $385.80 | $233.00 |
| 2,000 kWh | $514.40 | $313.00 |
*Residential Electric Space Heating (effective 2007-07-01, $17.00/month customer charge), energy and fixed charges from the OpenEI Utility Rate Database. Riders, fuel adjustments and taxes are often billed separately, so real bills usually land closer to the all-in column. Calculate your bill.
Southwestern Electric Co-op residential rate plans
| Plan | Effective | Customer charge | Energy charges |
|---|---|---|---|
| Residential Electric Space Heating | 2007-07-01 | $17.00 | 16.00¢ first 700 kWh, 10.00¢ first 1,100 kWh, 16.00¢ after |
| Residential Electric Water & Space Heatingtime-of-use | 2007-07-01 | $17.00 | 16.0¢ (12am–12am) — summer weekdays |
| Residential Central Cooling & Water Heatingtime-of-use | 2007-07-01 | $17.00 | 16.0¢ (12am–12am) — summer weekdays |
| Residential Central Coolingtime-of-use | 2007-07-01 | $17.00 | 16.0¢ (12am–12am) — summer weekdays |
| Residential Electric Water & Space Heatingtime-of-use | 2007-07-01 | $17.00 | 16.0¢ (12am–12am) — summer weekdays |
| Residential Electric Water & Space Heatingtime-of-use | 2007-07-01 | $17.00 | 16.0¢ (12am–12am) — summer weekdays |
| Residential Central Coolingtime-of-use | 2007-07-01 | $17.00 | 16.0¢ (12am–12am) — summer weekdays |
| Residential Electric Space Heatingtime-of-use | 2007-07-01 | $17.00 | 16.0¢ (12am–12am) — summer weekdays |
| Residential Central Cooling & Water Heatingtime-of-use | 2007-07-01 | $17.00 | 16.0¢ (12am–12am) — summer weekdays |
| Residential Electric Water Heating- TOU | 2007-07-01 | $17.00 | 16.00¢ first 700 kWh, 10.00¢ first 1,100 kWh, 16.00¢ after |
| Residential Electric Water Heating- TOU | 2007-07-01 | $17.00 | 16.00¢ first 700 kWh, 10.00¢ first 1,100 kWh, 16.00¢ after |
| Residential-General Service | 2007-07-01 | $17.00 | 16.00¢ |
| Residential Electric Space Heating & Central Cooling | 2007-07-01 | $17.00 | 16.00¢ first 700 kWh, 10.00¢ after |
| Residential-General Service | 2007-07-01 | $17.00 | 16.00¢ |
Source: OpenEI U.S. Utility Rate Database. Rates change. Check the linked tariff or your bill for current figures.
Southwestern Electric Co-op rate history
2015–2025: +17% change in the average residential rate (21.58¢ → 25.31¢). Annual EIA-861 data.
Outages & reliability
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Reliability history
Southwestern Electric Co-op doesn't report reliability metrics to EIA (common for small utilities).
Outages in counties served (2025)
From ORNL EAGLE-I, which tracks customers without power every 15 minutes. These counts cover every utility in each county. Weighted across Southwestern Electric Co-op's counties, customers averaged 4 hr 58 min without power.
| County | Outage min/customer | Days with outages | Peak customers out | Worst day |
|---|---|---|---|---|
| Union | 717 | 4 | 1,576 | 2025-09-10 |
| Quay | 260 | 13 | 3,469 | 2025-12-12 |
Southwestern Electric Co-op service area
Southwestern Electric Co-op serves 4 counties in New Mexico and 14 ZIP codes.
Colfax, Harding, Quay, Union
Programs, smart meters & solar
| Smart meters (AMI) for homes | 0% |
| Time-based rate programs | None reported |
| Net-metered solar homes | 34 |
Southwestern Electric Co-op at a glance
| Ownership | Electric cooperative |
| Services | Distribution |
| Commercial rate | 19.14¢/kWh |
| Industrial rate | 8.26¢/kWh |
| Retail revenue (2025) | $24,855,800 |
| Electricity sold (2025) | 273,742 MWh |
| Peak demand | 41 MW summer · 37 MW winter |
| Line losses | 2.4% |
| Balancing authority | PNM |
| EIA utility ID | 17715 |
Other utilities in New Mexico
Frequently asked questions
What is Southwestern Electric Co-op's electricity rate?
Southwestern Electric Co-op residential customers pay an average of 25.72¢ per kWh, all charges included (EIA-861 2025 annual data, adjusted to the 12 months ending 2026-07 using the state's price trend). That's 68% above the New Mexico average of 15.32¢ and 43% above the U.S. average.
What is the average Southwestern Electric Co-op electric bill?
About $137 a month. The average Southwestern Electric Co-op home uses 532 kWh a month. At 1,000 kWh the bill would be about $257.
How many customers does Southwestern Electric Co-op have?
Southwestern Electric Co-op serves 1,435 residential customers and 2,279 customers in total in New Mexico, across 4 counties.
Does Southwestern Electric Co-op offer time-of-use rates?
Yes. The OpenEI rate database lists 8 time-of-use residential plans, including Residential Electric Water & Space Heating. Running big appliances off-peak can cut their cost. Pick the plan in the calculator above to see by how much.
Does Southwestern Electric Co-op offer net metering for solar?
Southwestern Electric Co-op had 34 residential net-metered customers in 2025 with 0.3 MW of capacity. Estimate solar savings at this utility's rate.
Sources: EIA-861 2025 and EIA-861M (through July 2026), OpenEI URDB, ORNL EAGLE-I, U.S. Census. Methodology. Spot an error? Rates change often, so confirm with Southwestern Electric Co-op before making decisions.