Southwestern Public Service Co
3 residential tariffs on file in NM, TX, ranging from $0.0998 to $0.1283 per kWh at 1,000 kWh a month.
The gap between this utility's cheapest and most expensive residential tariff is $341 a year for a household using 1,000 kWh a month. Tariffs are not always open to everyone — some require electric heating, a demand meter or program enrollment — so check eligibility with the utility before switching.
Residential tariffs
| Tariff | Structure | Filed | Fixed/mo | $/kWh @1,000 | Annual |
|---|---|---|---|---|---|
| Residential Heating Service - Rate 39 | Time-of-use | 2026 | $11.20 | $0.0998 | $1,197.72 |
| R (Residential Service) - Rate 1 | Time-of-use | 2026 | $11.20 | $0.1150 | $1,379.56 |
| Residential Heating Service TOU - Rate 39 | Time-of-use | 2026 | $11.20 | $0.1283 | $1,539.21 |
Solar and net metering
Southwestern Public Service Co reports 2,161 residential solar installations to the EIA, totalling 20.596 MW. That means exported power is likely to earn something here, though what an exported kWh is worth depends on state rules rather than on the tariff in most cases.
For reference, Southwestern Public Service Co collected an average of $0.1291 per kWh from residential customers in the most recent EIA survey, across all its tariffs and all usage levels. A single tariff priced at 1,000 kWh a month will differ from that blended figure.