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TEP Electricity Rates & Bill Calculator

TEP Basic now has verified seasonal tier execution for full billing-period usage. Time-of-Use remains tracked separately and is not flattened into a fake single rate.

Compare with Arizona average →
Verified planBasictiered bill context
Tracked planTime-of-Usenot calculator-ready yet
State benchmark15.38¢/kWhEIA · 2026-07
Service areaTucson / TEP electric service territory
Featured planBasic
Pricing modelRate Plan
Last verified2026-09-28
Calculator-ready: verified numerical rate components are encoded for supported calculations. Effective from 2026-06-01. Unknown bill components remain excluded rather than treated as $0.
Calculate bill with TEPCompare Arizona averageOpen BasicEV charging calculator
Whole-bill integration: Basic is safe for the current bill calculator model (tiered energy pricing).

TEP rate plans

One verified tiered plan is executable; the TOU plan remains fail-closed until tier + time + rider context is complete.

Verified tiered · bill estimate

Basic

Three kWh blocks with summer/winter pricing; separate phase-dependent Basic Service Charge.

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Profile-only

Time-of-Use

Tiered TOU rates are tracked, but v0.6.2 does not expose them until combined usage-position + schedule + rider context is fully hardened.

Tracked
Integrity rule. Verified tier blocks can calculate full billing-period energy charges. They are not offered as a single marginal cents/kWh value to EV, appliance or solar tools.

Official source trail

TEP Basic →TRRES rate chart →TEP Time-of-Use →
Reviewed Sep 28, 2026.
rate depth

How TEP differs from the Arizona average

Pricing structureProfile-only / tariff reference
Lowest encoded periodNot encodedNo safe numeric period
Highest encoded periodNot encoded
State benchmark15.38¢/kWhEIA · 2026-07
Effective from2026-06-01
Last verified2026-09-28
Calculator statusCalculator-ready
Featured planBasic

Eligibility / billing boundary: Verified tiered Energy Charges are calculated from full billing-period usage. The result remains a partial bill estimate because PPFAC and other riders/assessments are not folded into the tier rate.

The state average is a benchmark, not a substitute for this tariff. A low or high encoded period is a marginal energy price and should not be interpreted as a complete monthly bill unless the page explicitly says whole-bill modeling is supported.

Official source: TEP official Basic plan + TRRES rate chart.

whole-bill calculator

TEP electricity bill calculator

Current statusWhole-bill model supported
Verified planBasic
Pricing modelTiered

Use the same verified tariff model at any monthly usage level. CalcuRiver does not create separate SEO pages for 500, 1,000, 1,500 or 2,000 kWh.

500 kWhEstimate this bill →1,000 kWhEstimate this bill →1,500 kWhEstimate this bill →2,000 kWhEstimate this bill →

The calculator includes only rate components encoded and verified for this plan. Any excluded taxes, riders, credits or local charges remain disclosed rather than assumed to be $0.

Continue this cost analysis

Carry this utility context into the household-energy calculators where it materially changes the result.

Arizona electricity ratesCompare this utility with the current state residential benchmark.TEP solar savingsUse this utility context in solar savings and export-value calculations.EV charging in ArizonaSee vehicle charging costs in the same electricity market.
local cost context

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Solar

TEP solar cost & savings

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