Electricity rates — Tucson Electric Power Co
Tucson Electric Power Co's customers paid 15.6¢ per kWh in 2024, riders included (EIA-861): about $125 a month for 800 kWh. Special Residential Electric Service Time-of-Use Program TRRSPT - Single Phase, the lowest of 8 open plans at 1,000 kWh a month, comes to $1,787 a year, at the typical hour-by-hour use of homes in Arizona. Schedule retrieved October 8, 2026.
Every priced Tucson Electric Power Co plan, 1,000 kWh/mo
| Plan | Per year | vs cheapest | Effective |
|---|---|---|---|
| Special Residential Electric Service Time-of-Use Program TRRSPT - Single Phase✓ cheapesttime-of-use · tiered · in effect since October 2025 | $1,787.37 | — | 14.9¢ |
| Special Residential Electric Service TRRSP - Single Phasepriced by season · tiered · in effect since October 2025 | $1,801.30 | +$13.93 | 15.0¢ |
| Special Residential Electric Service Time-of-Use Program TRRSPT - Three Phasetime-of-use · tiered · in effect since October 2025 | $1,847.37 | +$60.00 | 15.4¢ |
| Special Residential Electric Service TRRSP - Three Phasepriced by season · tiered · in effect since October 2025 | $1,861.30 | +$73.93 | 15.5¢ |
| Residential Time-of-Use TRREST - Single Phasetime-of-use · tiered · in effect since October 2025 | $1,864.19 | +$76.82 | 15.5¢ |
| Residential Electric Service TRRES (Single Phase)priced by season · tiered · in effect since October 2025 | $1,914.11 | +$126.74 | 16.0¢ |
| Residential Time-of-Use TRREST - Three Phasetime-of-use · tiered · in effect since October 2025 | $1,924.19 | +$136.82 | 16.0¢ |
| Residential Electric Service TRRES (Three Phase)priced by season · tiered · in effect since October 2025 | $1,974.11 | +$186.74 | 16.5¢ |
| Priced but not ranked — restricted, older, or not verifiable as a bill | |||
| Residential Electric Service R-01 (Single Phase) Low Income Lifeline Programpriced by season · tiered · in effect since December 2016 · low-income rate | $1,249.36 | −$538.01 | 10.4¢ |
| Residential Electric Service R-01 (Three Phase) Low Income Lifeline Programpriced by season · tiered · in effect since December 2016 · low-income rate | $1,309.36 | −$478.01 | 10.9¢ |
| Residential Demand Time-of-Use TRRESDT - Single Phasetime-of-use · demand charge · in effect since October 2025 · billed on peak kW, which monthly use cannot price; not ranked | $1,375.51 | −$411.86 | 11.5¢ |
| Residential Service Peak Demand TRRESD (Single Phase)priced by season · demand charge · in effect since October 2025 · billed on peak kW, which monthly use cannot price; not ranked | $1,435.41 | −$351.96 | 12.0¢ |
| Residential Demand Time-of-Use TRRESDT - Three Phasetime-of-use · demand charge · in effect since October 2025 · billed on peak kW, which monthly use cannot price; not ranked | $1,435.51 | −$351.86 | 12.0¢ |
| Residential Service Peak Demand TRRESD (Three Phase)priced by season · demand charge · in effect since October 2025 · billed on peak kW, which monthly use cannot price; not ranked | $1,495.41 | −$291.96 | 12.5¢ |
Price Tucson Electric Power Co’s plans at your own usage — and see what moving from your current plan would save.
The cheapest Tucson Electric Power Co plan at each level of use
- 500 kWh/mo — cheapest $977.24 (Special Residential Electric Service Time-of-Use Program TRRSPT - Single Phase), dearest $1,097.79, a $120.55 spread
- 1,000 kWh/mo — cheapest $1,787.37 (Special Residential Electric Service Time-of-Use Program TRRSPT - Single Phase), dearest $1,974.11, a $186.74 spread
- 2,000 kWh/mo — cheapest $3,495.50 (Special Residential Electric Service Time-of-Use Program TRRSPT - Single Phase), dearest $3,814.61, a $319.11 spread
What a typical Tucson Electric Power Co bill costs
At 1,000 kWh a month the 8 generally available plans here run from $1,787.37 on Special Residential Electric Service Time-of-Use Program TRRSPT - Single Phase to $1,974.11 on Residential Electric Service TRRES (Three Phase), with a median of $1,862.75.
Effective rates span 14.9¢ to 16.5¢ per kWh at that usage.
What Tucson Electric Power Co's customers were billed in 2024
Priced at 800 kWh a month, what Tucson Electric Power Co's customers used on average, its open plans come within 2% of what EIA reports they were billed in 2024: the plans here describe its bills well.
| Ownership, as EIA classes it | Investor-owned |
|---|---|
| Full-service homes in Arizona | 412,747 |
| Share of Arizona's households | 14% |
| Average use per home | 800 kWh a month |
| Average bill per home | $125.10 a month |
| Billed per kWh, riders included | 15.6¢ |
| Median open plan here, at that use | 15.9¢ |
Tucson Electric Power Co in U.S. Energy Information Administration, Form EIA-861, 2024 (Sales_Ult_Cust_2024.xlsx), retrieved September 23, 2026.
How the Residential Electric Service TRRES (Single Phase) bill at 1,000 kWh has moved since 2013
Tucson Electric Power Co's Residential Electric Service TRRES (Single Phase) cost $115.76 a month under its July 2013 version, filed then as R-01, and costs $159.51 under its October 2025 one, 38% more. Its biggest single step, in April 2017, added $24.07 (21%). In Arizona, EIA's average price rose 31% between 2013 and 2025.
Every version of Residential Electric Service TRRES (Single Phase)
| Took effect | At 1,000 kWh | Change | Record |
|---|---|---|---|
| October 2025 | $159.51 | −$7.50 (−4.5%) | URDB |
| August 2024 | $167.01 | +$4.63 (+2.9%) | URDB |
| January 2021 | $162.38 | +$21.58 (+15.3%) | URDB |
| April 2018 | $140.80 | +$3.62 (+2.6%) | URDB |
| April 2017as Residential Electric Service R-01 (Single Phase) | $137.18 | +$24.07 (+21.3%) | URDB |
| January 2017as Residential Electric Service R-01 (Single Phase) | $113.11 | −$3.96 (−3.4%) | URDB |
| April 2015as Residential Electric Service R-01 (Single Phase) | $117.07 | +$1.31 (+1.1%) | URDB |
| July 2013as R-01 | $115.76 | First on record | URDB |
In the guides: Why electricity rates change
How it compares
Among the 100 utilities indexed, Tucson Electric Power Co's cheapest open plan is the 45th-lowest, 3% less than their median of $1,849.47. It sits between Kentucky Power Co ($1,771.32) and Progress Energy Florida Inc ($1,793.58).
In Arizona it is the 2nd-dearest of the 3 utilities indexed; Salt River Project starts lowest, at $1,607.17.
Its fixed charge, $20.44 a month on Special Residential Electric Service Time-of-Use Program TRRSPT - Single Phase, is higher than on the cheapest plan of 81 of the other 99 utilities.
Residential Electric Service TRRES (Single Phase) is tiered: past 500 kWh a month, each kWh costs 2.0¢ more. Of the 47 utilities whose plans step, that is the 21st-largest step.
Residential Electric Service TRRES (Single Phase) changes price with the season: a kWh costs 0.4¢ more in May to September than in October to April, and the same 1,000 kWh is billed $161.93 in its dearest month against $157.78 in its cheapest.
In the guides: What a bill costs before a single kilowatt-hour · The price that changes once the meter passes a line · The price that changes with the month
Which plan from Tucson Electric Power Co is cheapest as use rises
Special Residential Electric Service Time-of-Use Program TRRSPT - Single Phase is cheapest at every level tested — $977.24 a year at 500 kWh a month, $3,495.50 at 2,000 kWh.
The penalty for a poor choice grows with usage: $120.55 a year at 500 kWh against $319.11 at 2,000 kWh.
Cheapest 6 plans at 1,000 kWh a month
Special Residential Electric Service Time-of-Use Program TRRSPT - Single Phase — $1,787.37 a year, 14.9¢ per kWh effective, tiered and time-of-use. It carries a $20.44 monthly standing charge. In effect since October 2025.
Special Residential Electric Service TRRSP - Single Phase — $1,801.30 a year, 15.0¢ per kWh effective, tiered and priced by season. It carries a $23.44 monthly standing charge. In effect since October 2025.
Special Residential Electric Service Time-of-Use Program TRRSPT - Three Phase — $1,847.37 a year, 15.4¢ per kWh effective, tiered and time-of-use. It carries a $25.44 monthly standing charge. In effect since October 2025.
Special Residential Electric Service TRRSP - Three Phase — $1,861.30 a year, 15.5¢ per kWh effective, tiered and priced by season. It carries a $28.44 monthly standing charge. In effect since October 2025.
Residential Time-of-Use TRREST - Single Phase — $1,864.19 a year, 15.5¢ per kWh effective, tiered and time-of-use. It carries a $20.44 monthly standing charge. In effect since October 2025.
Residential Electric Service TRRES (Single Phase) — $1,914.11 a year, 16.0¢ per kWh effective, tiered and priced by season. It carries a $23.44 monthly standing charge. In effect since October 2025.
How Tucson Electric Power Co's plans are structured
Of 14 priceable plans: 10 tiered, 6 time-of-use, 8 priced by season, 4 with demand charges.
Fixed monthly charges run from $5.17 to $28.44.
Tucson Electric Power Co's published schedules
Tucson Electric Power Co was found serving Tucson, Arizona. 14 of its 14 published residential schedules can be priced.
The largest saving among Tucson Electric Power Co's plans
Moving from Residential Electric Service TRRES (Three Phase) to Special Residential Electric Service Time-of-Use Program TRRSPT - Single Phase saves $186.74 a year at 1,000 kWh a month, with no change in consumption.
When Tucson Electric Power Co's time-of-use plans charge most
Special Residential Electric Service Time-of-Use Program TRRSPT - Single Phase charges 16.9¢ a kWh weekdays 2 pm to 8 pm, May to September, against 11.4¢ in its cheapest hours; those dearest hours are 7% of the year. Homes in Arizona typically put 11% of their electricity in them (NREL ResStock), which is what its price above assumes: moving use out of them lowers the bill, adding to them raises it.
In the guides: Time-of-use plans, hour by hour
What the Tucson Electric Power Co figures do not cover
6 of these plans price by the hour; their figures assume the typical hourly pattern of homes in Arizona, not this household's own hours.