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Arizona Public Service Co rate plans

5 residential plans are currently open to new customers that we can price side by side. Some charge different prices depending on the hour — which is where most of the savings hide.

Looking for when the expensive hours are? Arizona Public Service’s peak hours, plan by plan →

What does Arizona Public Service cost at a normal month’s usage?

A household using 1,000 kWh a month pays about $2,212 a year on the cheapest of the 5 plans we can price here — Fixed Energy Charge Plan (R-1) Medium Tier 2 — and $5,265 on the priciest. Same house, same wires.

Annual cost at Arizona Public Service by monthly usage
A month of	Cheapest, a year	On which plan	Priciest
500 kWh	$1,190	Fixed Energy Charge Plan (R-1) Medium Tier 2	$2,699
1,000 kWh	$2,212	Fixed Energy Charge Plan (R-1) Medium Tier 2	$5,265
2,000 kWh	$4,257	Fixed Energy Charge Plan (R-1) Medium Tier 2	$10,398

The same plan is cheapest at every level of use here, so the answer does not turn on how much you use. Estimates from the filed tariff, priced hour by hour on a household with central air — not a quote.

How much does the plan you pick actually matter here?

Run the same three-bedroom house with central air through every plan Arizona Public Service Co files, and the bill lands anywhere between $1,778 and $4,174 a year. That $2,396 spread is not a difference in electricity — it is the same kilowatt-hours, from the same wires, priced under different rules. Nobody sends you a letter when you are on the wrong side of it.

The plan most households land on by default, Time-of-Use 4pm-7pm Weekdays (R-TOU-E), comes to about $1,853. The cheapest option here, Fixed Energy Charge Plan (R-1) Medium Tier 2, comes to $1,778 — a gap of about $76 a year for a household that never changed a single habit. Whether you can actually capture that depends on when you use power, which is what the calculator below is for.

2 of these 5 plans price by the hour. Those are the ones where moving laundry, dishes, or car charging into the cheap window changes the bill; on the rest, the clock is irrelevant and only the total matters. Which camp you belong in is the first question worth settling, because it decides whether shifting your day is worth anything at all.

Watch the fixed charges too. Across these plans they run from $132 to $167 a year before a single kilowatt-hour is counted. For a small household that difference alone can outweigh the per-kWh price, which is why comparing cents per kilowatt-hour on its own quietly misleads.

How Arizona Public Service compares across Arizona

Run the same three-bedroom house with central air through its default plan at each of the 3 Arizona utilities we cover, and Arizona Public Service is the dearest of the lot at about $1,853 a year; the state median is $1,547. The cheapest, Salt River Project, charges $1,379 for identical use — a gap set by the address, not by anything either household did.

The other two households tell the same story in different sizes: a small apartment pays about $1,022 here against a state median of $895, and the same house with an electric car charging overnight about $2,413 against $2,089. Effective rate, fixed charge included, is 19.6¢ per kilowatt-hour for the family home.

Inside Arizona Public Service itself, the gap between its cheapest and dearest plan for that house is $2,396 a year — more than the $474 between Arizona's cheapest and dearest utilities. Which plan you are on matters more here than which company sends the bill.

Every Arizona utility we cover, priced for the same three households →

Which plan would cost you least?

No bill upload, no sign-up. Tell us roughly what a month costs you and what runs on electricity — we price every plan against the same household and show you the gap.

Start from a household like yours

Then correct anything below that doesn’t match.

A typical monthly bill

$a month

A bill that size works out to about 675 kWh a month on Fixed Energy Charge Plan. If your bill shows a different number of kWh, switch to and use theirs — it is the more accurate of the two.

What else runs on electricity

Electric carcharged at home

Electric water heaterincluding heat pump

Central air conditioningsummer only

Electric heatheat pump or resistance

That adds up to 8,219 kWh a year. Compare it to the total on your bill and adjust until it’s close.

drag to turn

back row — kWh usedfront row — $ cost

A weekday in May on Time-of-Use 4pm-7pm Weekdays with Demand Charge (R-3) — the back row is how much you use each hour, the front row is what that hour costs. Both are colored by the price at that hour. $2.33 a day, and 6pm alone accounts for $0.28 of it — the same power at 12am would cost $0.15. Rows are scaled separately; kWh and dollars are not the same units.

Same usage, different plan

$2,689a year

That is the gap between the cheapest plan you could be on — Time-of-Use 4pm-7pm Weekdays with Demand Charge (R-3) — and the priciest. Not by using less power. By being billed differently for the same power.

Plan	Per year	Vs best
Time-of-Use 4pm-7pm Weekdays with Demand Charge (R-3)Peak hits 4pm–7pm every day, all year.	$954	—
Fixed Energy Charge Plan (R-1) Medium Tier 2One rate, every hour of the year.	$1,566	+$612
Residential Electric Vehicle Time-of-Use (R-EV)Peak hits 4pm–7pm every day, all year.	$1,604	+$650
Time-of-Use 4pm-7pm Weekdays (R-TOU-E)Peak hits 4pm–7pm every day, all year.	$1,610	+$656
Fixed Energy Charge Plan (R-1) Large Tier 3One rate, every hour of the year.	$1,678	+$724
Fixed Energy Charge Plan (R-1) Small Tier 1One rate, every hour of the year.	$3,643	+$2,689

An estimate, not a quote. Supply charges move month to month, and your real usage pattern is not exactly this one. What it does show reliably is the gap between plans — both are priced off the same assumptions.

Before you switch anything

Every plan, in detail

Hour-by-hour schedules, tier thresholds, and the tariff each one comes from.