What are Tucson Electric Power Co Residential Time-of-Use TRREST - Three Phase peak hours and rates?
Residential Time-of-Use TRREST - Three Phase from Tucson Electric Power Co is a time-of-use plan: electricity costs the most during peak hours (3 p.m.–7 p.m.) at about $0.17/kWh and the least off-peak at about $0.14/kWh. Shifting heavy usage out of the peak window lowers the bill.
Peak window
3 p.m.–7 p.m.
Peak price
17¢/kWh
Off-peak price
14¢/kWh
Fixed charge
$15.00/mo
The Residential Time-of-Use TRREST - Three Phase day, hour by hour
Hover any hour for its exact price. Toggle season and day type.
Winter
Jan–Apr, Oct–Dec
| Period | Hours | $/kWh |
|---|---|---|
| Peak | 6 a.m.–10 a.m., 5 p.m.–9 p.m. | $0.14 |
| Mid-Peak | 9 p.m.–6 a.m., 10 a.m.–5 p.m. | $0.14 |
Summer
May–Sep
| Period | Hours | $/kWh |
|---|---|---|
| Peak | 3 p.m.–7 p.m. | $0.17 |
| Mid-Peak | 7 p.m.–3 p.m. | $0.14 |
Usage tiers
| Tier | Up to | $/kWh |
|---|---|---|
| Tier 1 | 500 kWh | $0.17 |
| Tier 2 | 1000 kWh | $0.19 |
| Tier 3 | no limit | $0.19 |
Frequently asked questions
What are Tucson Electric Power Co Residential Time-of-Use TRREST - Three Phase peak hours and rates? +
Residential Time-of-Use TRREST - Three Phase from Tucson Electric Power Co is a time-of-use plan: electricity costs the most during peak hours (3 p.m.–7 p.m.) at about $0.17/kWh and the least off-peak at about $0.14/kWh. Shifting heavy usage out of the peak window lowers the bill.
When is the cheapest time to use electricity on Residential Time-of-Use TRREST - Three Phase? +
The cheapest electricity on Tucson Electric Power Co Residential Time-of-Use TRREST - Three Phase is during off-peak hours (9 p.m.–6 a.m., 10 a.m.–5 p.m.), at about 14¢/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 Time-of-Use TRREST - Three Phase? +
Peak power costs about 17¢/kWh versus 14¢/kWh off-peak — a difference of about 4¢/kWh. Running a 5 kWh load (a load of laundry plus dishwasher) off-peak instead of at peak saves roughly $0.19.
Who offers Residential Time-of-Use TRREST - Three Phase? +
Residential Time-of-Use TRREST - Three Phase is a residential electricity plan from Tucson Electric Power Co (Tucson Electric Power Co).
About this data
Compiled by Optiwatt from the OpenEI U.S. Utility Rate Database (6306af9f986f2845621575e8). Representative — verify exact prices on your Tucson Electric Power Co bill or tariff sheet.
Other Tucson Electric Power Co plans
Residential Demand Time-of-Use TRRESDT
3 p.m.–7 p.m.
Residential Demand Time-of-Use TRRESDT - Single Phase
3 p.m.–7 p.m.
Residential Demand Time-of-Use TRRESDT - Three Phase
3 p.m.–7 p.m.
Residential Electric Service R-01 (Single Phase) Low Income Lifeline Program
Tiered
Residential Electric Service R-01 (Three Phase) Low Income Lifeline Program
Tiered
Residential Electric Service TRRES (Single Phase)
Tiered
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Data last updated June 18, 2026. Compiled by Energy Advisor from published utility tariffs.