Residential Time-of-Use TRREST - Single Phase

Tucson Electric Power Co · Time-of-use + tiered · filed 2025

$0.1520per kWh, all in

$1,824a year at 1,000 kWh/mo

$20.44fixed, before any usage

$0.1563utility's actual average

What this tariff charges

Fixed charge	$20.44 per month
Export (sell) rate	$0.0513 per kWh
Structure	Time-of-use + tiered
Filed	2025-09-30

Energy rates

The charged price is the base rate plus its adjustment. Adjustments carry fuel and rider costs and are frequently most of the bill, so a comparison built on the base rate alone is meaningless.

Period 0

Tier	Up to	Base	Adjustment	Charged $/kWh
1	500.0 kWh	0.19272	-0.00097	0.19174
2	1000.0 kWh	0.20555	-0.00078	0.20477
3	no limit	0.21276	-0.00067	0.21209

Period 1

Tier	Up to	Base	Adjustment	Charged $/kWh
1	500.0 kWh	0.12185	-0.00206	0.11979
2	1000.0 kWh	0.13468	-0.00186	0.13281
3	no limit	0.14189	-0.00176	0.14013

Period 2

Tier	Up to	Base	Adjustment	Charged $/kWh
1	500.0 kWh	0.13325	-0.00189	0.13136
2	1000.0 kWh	0.14608	-0.00169	0.14439
3	no limit	0.15329	-0.00158	0.15171

Period 3

Tier	Up to	Base	Adjustment	Charged $/kWh
1	500.0 kWh	0.12482	-0.00202	0.12280
2	1000.0 kWh	0.13765	-0.00182	0.13583
3	no limit	0.14486	-0.00171	0.14315

What it costs at different usage levels

kWh per month	Annual total	Effective $/kWh
500	$1,014.82	$0.1691
1000	$1,824.23	$0.1520
2000	$3,534.40	$0.1473

Effective rate includes the fixed charge, which is why it falls as usage rises. This is a time-of-use tariff, so the result also depends on when power is used; an average residential pattern is assumed. Details →

Tucson Electric Power Co offers a cheaper tariff at this usage. Special Residential Electric Service Time-of-Use Program TRRSPT - Single Phase comes to $1,742.42 a year against this one's $1,824.23 — a difference of $82. Eligibility rules may apply; check with the utility.

Rooftop solar on this tariff

A 7 kW system costing $21,000 before incentives would save $1,086 a year on this tariff, paying back in 19 years. No federal tax credit is included: Section 25D ended on December 31, 2025.

sell rate filed with the tariff ($0.0513/kWh). Compare across this state →

The utility's own description

Applicable for all single-phase residential electric service in individual private dwellings and individually metered apartments when all services is supplied at one point of delivery and energy is metered through one meter. The service shall be single phase, 60 Hertz.

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