What are Southwestern Public Service Co Residential Service - Alternative TOU peak hours and rates?
Residential Service - Alternative TOU from Southwestern Public Service Co is a time-of-use plan: electricity costs the most during peak hours (12 p.m.–6 p.m.) at about $0.28/kWh and the least off-peak at about $0.10/kWh. Shifting heavy usage out of the peak window lowers the bill.
Peak window
12 p.m.–6 p.m.
Peak price
28¢/kWh
Off-peak price
10¢/kWh
Fixed charge
$10.80/mo
The Residential Service - Alternative TOU day, hour by hour
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All year
All year
| Period | Hours | $/kWh |
|---|---|---|
| Peak | 12 p.m.–6 p.m. | $0.28 |
| Mid-Peak | 6 p.m.–12 p.m. | $0.10 |
Frequently asked questions
What are Southwestern Public Service Co Residential Service - Alternative TOU peak hours and rates? +
Residential Service - Alternative TOU from Southwestern Public Service Co is a time-of-use plan: electricity costs the most during peak hours (12 p.m.–6 p.m.) at about $0.28/kWh and the least off-peak at about $0.10/kWh. Shifting heavy usage out of the peak window lowers the bill.
When is the cheapest time to use electricity on Residential Service - Alternative TOU? +
The cheapest electricity on Southwestern Public Service Co Residential Service - Alternative TOU is during off-peak hours (6 p.m.–12 p.m.), at about 10¢/kWh. Shift EV charging, laundry, dishwashing, and pre-cooling into these hours to pay the least.
How much more is peak vs off-peak on Residential Service - Alternative TOU? +
Peak power costs about 28¢/kWh versus 10¢/kWh off-peak — a difference of about 18¢/kWh. Running a 5 kWh load (a load of laundry plus dishwasher) off-peak instead of at peak saves roughly $0.92.
Who offers Residential Service - Alternative TOU? +
Residential Service - Alternative TOU is a residential electricity plan from Southwestern Public Service Co (Southwestern Public Service Co).
About this data
Compiled by Optiwatt from the OpenEI U.S. Utility Rate Database (6397ed64f14d5ab38b084c95). Representative — verify exact prices on your Southwestern Public Service Co bill or tariff sheet.
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Data last updated June 18, 2026. Compiled by Energy Advisor from published utility tariffs.