Southwestern Public Service Co electricity rate plans
4 residential rate plans from Southwestern Public Service Co. Each page breaks down peak hours, off-peak windows, and per-kWh prices. 2 are time-of-use plans.
| Plan | Type | Peak hours | Peak / off-peak |
|---|---|---|---|
| Residential Heating Service | Flat | — | 10¢ |
| Residential Service - Alternative Experimental TOU | Time-of-use | 12 p.m.–6 p.m. | 21¢ / 7¢ |
| Residential Service - Alternative TOU | Time-of-use | 12 p.m.–6 p.m. | 28¢ / 10¢ |
| RS (Residential Service) | Flat | — | 13¢ |
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Data last updated June 18, 2026. Compiled by Energy Advisor from published utility tariffs.