FLAGSHIP CALCULATOR
Which Arizona plan is cheapest for you?
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RATES EFFECTIVE JUL 2026
kWh
300find this on your bill4,000
4 · Flexibility
Estimates use published summer & winter rates effective Jul 2026 and modeled load shapes. Your real bill varies with weather, home size, and exact timing. Not affiliated with APS, SRP, or TEP — verify on your utility's own tools.
YOU COULD SAVE
Switching from Premier Choice to Saver Choice Tech (EV) for a APS home using 1,100 kWh/mo.
$511
per year
All APS residential plans, ranked
cheapest blended annual cost first
✓ CHEAPEST FOR YOU
1
Saver Choice Tech (EV)EV · overnight
EV charging overnight · $1,530/yr blended
Overnight super off-peak 6.2¢
On-peak 24.5¢
Off-peak 9.9¢
$127
/mo avg. est.
2
Saver Choice PlusTOU + demand
Flat evening usage, no big spikes · $1,534/yr blended
On-peak energy 10.9¢
Off-peak energy 7.6¢
Demand $9.20/kW
$128
/mo avg. est.
+$4/yr
3
Saver ChoiceTOU · 4–7pm
Can shift load off afternoons · $1,585/yr blended
On-peak 24.5¢
Off-peak 9.9¢
$132
/mo avg. est.
+$55/yr
4
Premier ChoiceFlat rate
Low, steady usage · $2,041/yr blended
Flat rate 15.3¢
$170
/mo avg. est.
+$511/yr
Picked a plan? Some fixes need a pro — a panel upgrade or dedicated circuit for that EV charger.
Find an electrician →How the estimates work
We compare all 11 residential plans across the three big Arizona utilities using the rates each utility has published (effective Jul 2026 — every figure links to its tariff source below).
- Your usage becomes a load shape. Your monthly kWh is split across on-peak, off-peak, and overnight super-off-peak buckets using the "when are you home?" profile you pick. A home that's empty 9–5 puts less of its usage in the afternoon peak window than one running the AC all day.
- Each plan prices that load shape. Flat plans multiply usage by one rate. Time-of-use plans price each bucket separately. Demand plans add a charge based on your estimated peak draw (we scale your average kW up by a profile-specific peak factor).
- Seasons are blended. Annual cost = 6 summer months + 6 winter months at each plan's seasonal rates, plus monthly service charges. Plans are ranked by that blended annual cost.
The "flexibility" toggle moves 6 percentage points of your load out of the peak window — roughly what shifting laundry, dishwasher, and pool-pump runs off-peak achieves.
What this is not
These are estimates from modeled load shapes, not a bill guarantee. Your actual bill depends on weather, home size, and exactly when you use power. Confirm with your utility's own comparison tools: APS plans · SRP plans · TEP plans.
Load-shape assumptions
| Profile | On-peak share | Overnight share | Peak factor |
|---|---|---|---|
| Typical mix | 20% | 12% | 3.6× |
| Home during the day | 30% | 8% | 3.2× |
| Away 9–5, home evenings | 26% | 10% | 4.4× |
| EV owner, charges overnight | 15% | 34% | 5.2× |