Electricity rates — ZIP 85701
A household in ZIP 85701 (Tucson) using 1,000 kWh a month pays about $1,351.13 a year on the cheapest of 12 generally available plans — Residential Demand Time-of-Use TRRESDT - Single Phase from Tucson Electric Power Co. Rates checked September 2, 2026. A further 2 schedules are published but restricted — means-tested, closed to new customers, or needing particular equipment — and they are priced further down.
Not indexed. This page does not yet meet the site’s own publication threshold — covers the same tariffs as /utility/tucson-electric-power-co; canonical points there. It is shown because the data behind it is real, not because it is complete.
Every priced plan, 1,000 kWh/mo
| Plan | Per year | vs cheapest | Effective |
|---|---|---|---|
| Residential Electric Service R-01 (Single Phase) Low Income Lifeline Programtime-of-use · tiered · low-income rate | $1,249.36 | −$101.77 | 10.4¢ |
| Residential Electric Service R-01 (Three Phase) Low Income Lifeline Programtime-of-use · tiered · low-income rate | $1,309.36 | −$41.77 | 10.9¢ |
| Residential Demand Time-of-Use TRRESDT - Single Phase✓ cheapesttime-of-use · demand charge | $1,351.13 | — | 11.3¢ |
| Residential Demand Time-of-Use TRRESDT - Three Phasetime-of-use · demand charge | $1,411.13 | +$60.00 | 11.8¢ |
| Residential Service Peak Demand TRRESD (Single Phase)time-of-use · demand charge | $1,435.41 | +$84.28 | 12.0¢ |
| Residential Service Peak Demand TRRESD (Three Phase)time-of-use · demand charge | $1,495.41 | +$144.28 | 12.5¢ |
| Special Residential Electric Service Time-of-Use Program TRRSPT - Single Phasetime-of-use · tiered | $1,728.26 | +$377.13 | 14.4¢ |
| Special Residential Electric Service Time-of-Use Program TRRSPT - Three Phasetime-of-use · tiered | $1,788.26 | +$437.13 | 14.9¢ |
| Special Residential Electric Service TRRSP - Single Phasetime-of-use · tiered | $1,801.29 | +$450.16 | 15.0¢ |
| Residential Time-of-Use TRREST - Single Phasetime-of-use · tiered | $1,809.50 | +$458.37 | 15.1¢ |
| Special Residential Electric Service TRRSP - Three Phasetime-of-use · tiered | $1,861.29 | +$510.16 | 15.5¢ |
| Residential Time-of-Use TRREST - Three Phasetime-of-use · tiered | $1,869.50 | +$518.37 | 15.6¢ |
| Residential Electric Service TRRES (Single Phase)time-of-use · tiered | $1,914.11 | +$562.98 | 16.0¢ |
| Residential Electric Service TRRES (Three Phase)time-of-use · tiered | $1,974.11 | +$622.98 | 16.5¢ |
Cost across usage levels
The cheapest plan at each consumption level, showing whether the ranking holds as usage changes.
- 500 kWh/mo — cheapest $798.29 (Residential Demand Time-of-Use TRRESDT - Single Phase), dearest $1,097.79, a $299.50 spread
- 1,000 kWh/mo — cheapest $1,351.13 (Residential Demand Time-of-Use TRRESDT - Single Phase), dearest $1,974.11, a $622.98 spread
- 2,000 kWh/mo — cheapest $2,457.00 (Residential Demand Time-of-Use TRRESDT - Single Phase), dearest $3,814.61, a $1,357.61 spread
What a typical bill costs
At 1,000 kWh a month the 14 priceable plans here run from $1,351.13 on Residential Demand Time-of-Use TRRESDT - Single Phase to $1,974.11 on Residential Electric Service TRRES (Three Phase), with a median of $1,794.78.
The spread is $622.98 a year — about $51.91 a month for identical electricity.
Effective rates, bill divided by kilowatt-hours, span 11.3¢ to 16.5¢ per kWh at that usage.
How the answer changes with usage
Residential Demand Time-of-Use TRRESDT - Single Phase is cheapest at every level tested — $798.29 a year at 500 kWh a month, $2,457.00 at 2,000 kWh.
The penalty for a poor choice grows with usage: $299.50 a year at 500 kWh against $1,357.61 at 2,000 kWh.
Cheapest 6 plans at 1,000 kWh a month
Residential Electric Service R-01 (Single Phase) Low Income Lifeline Program — $1,249.36 a year, 10.4¢ per kWh effective, tiered and time-of-use. It carries a $5.17 monthly standing charge.
Residential Electric Service R-01 (Three Phase) Low Income Lifeline Program — $1,309.36 a year, 10.9¢ per kWh effective, tiered and time-of-use. It carries a $10.17 monthly standing charge.
Residential Demand Time-of-Use TRRESDT - Single Phase — $1,351.13 a year, 11.3¢ per kWh effective, time-of-use and demand-charged. It carries a $20.44 monthly standing charge.
Residential Demand Time-of-Use TRRESDT - Three Phase — $1,411.13 a year, 11.8¢ per kWh effective, time-of-use and demand-charged. It carries a $25.44 monthly standing charge.
Residential Service Peak Demand TRRESD (Single Phase) — $1,435.41 a year, 12.0¢ per kWh effective, time-of-use and demand-charged. It carries a $20.44 monthly standing charge.
Residential Service Peak Demand TRRESD (Three Phase) — $1,495.41 a year, 12.5¢ per kWh effective, time-of-use and demand-charged. It carries a $25.44 monthly standing charge.
How these plans are structured
Of 14 priceable plans: 10 tiered, 14 time-of-use, 4 with demand charges.
Fixed monthly charges run from $5.17 to $28.44.
Who provides these plans
Every plan here comes from Tucson Electric Power Co — a limit of what has been indexed, not a claim that it is the only provider in ZIP 85701 (Tucson).
The largest saving available here
Moving from Residential Electric Service TRRES (Three Phase) to Residential Demand Time-of-Use TRRESDT - Single Phase saves $622.98 a year at 1,000 kWh a month, with no change in consumption.
What this does not cover
Service territories do not follow ZIP boundaries. These are the plans found at the coordinate this ZIP was resolved from, not a verified list for every address in it.
14 of these plans price by hour. WattClear does not know which hours a household uses, so those estimates carry lower confidence and say so on the figure.
New to these terms? The methodology page explains tiered bands, time-of-use periods and fixed charges, and sets out exactly what the rate engine assumes.
Estimate — your actual bill may differ.
Tariff structures from NREL/OpenEI Utility Rate Database (CC0 1.0), retrieved September 2, 2026.
Location resolved through the US Census Bureau Geocoder (Public domain) at 32.2226, -110.9747.