What are Superior Water, Light and Power Co Residential Service Time-of-Day (Three-Phase) ERTD w/ Parallel Generation (< 20 kW) peak hours and rates?
Residential Service Time-of-Day (Three-Phase) ERTD w/ Parallel Generation (< 20 kW) from Superior Water, Light and Power Co is a time-of-use plan: electricity costs the most during peak hours (9 a.m.–9 p.m.) at about $0.12/kWh and the least off-peak at about $0.04/kWh. Shifting heavy usage out of the peak window lowers the bill.
Peak window
9 a.m.–9 p.m.
Peak price
12¢/kWh
Off-peak price
4¢/kWh
Fixed charge
$13.00/mo
The Residential Service Time-of-Day (Three-Phase) ERTD w/ Parallel Generation (< 20 kW) day, hour by hour
Hover any hour for its exact price. Toggle season and day type.
Winter
Jan–Feb, Nov–Dec
| Period | Hours | $/kWh |
|---|---|---|
| Peak | 9 a.m.–9 p.m. | $0.11 |
| Mid-Peak | 9 p.m.–9 a.m. | $0.04 |
Summer
Mar–Oct
| Period | Hours | $/kWh |
|---|---|---|
| Peak | 9 a.m.–9 p.m. | $0.12 |
| Mid-Peak | 9 p.m.–9 a.m. | $0.04 |
Frequently asked questions
What are Superior Water, Light and Power Co Residential Service Time-of-Day (Three-Phase) ERTD w/ Parallel Generation (< 20 kW) peak hours and rates? +
Residential Service Time-of-Day (Three-Phase) ERTD w/ Parallel Generation (< 20 kW) from Superior Water, Light and Power Co is a time-of-use plan: electricity costs the most during peak hours (9 a.m.–9 p.m.) at about $0.12/kWh and the least off-peak at about $0.04/kWh. Shifting heavy usage out of the peak window lowers the bill.
When is the cheapest time to use electricity on Residential Service Time-of-Day (Three-Phase) ERTD w/ Parallel Generation (< 20 kW)? +
The cheapest electricity on Superior Water, Light and Power Co Residential Service Time-of-Day (Three-Phase) ERTD w/ Parallel Generation (< 20 kW) is during off-peak hours (9 p.m.–9 a.m.), at about 4¢/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 Time-of-Day (Three-Phase) ERTD w/ Parallel Generation (< 20 kW)? +
Peak power costs about 12¢/kWh versus 4¢/kWh off-peak — a difference of about 8¢/kWh. Running a 5 kWh load (a load of laundry plus dishwasher) off-peak instead of at peak saves roughly $0.39.
Who offers Residential Service Time-of-Day (Three-Phase) ERTD w/ Parallel Generation (< 20 kW)? +
Residential Service Time-of-Day (Three-Phase) ERTD w/ Parallel Generation (< 20 kW) is a residential electricity plan from Superior Water, Light and Power Co (Superior Water, Light and Power Co).
About this data
Compiled by Optiwatt from the OpenEI U.S. Utility Rate Database (539fb741ec4f024bc1dc09bb). Representative — verify exact prices on your Superior Water, Light and Power Co bill or tariff sheet.
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Data last updated June 18, 2026. Compiled by Energy Advisor from published utility tariffs.