Tankless Water Heater (Electric) in Phoenix — $459/yr to Run (14.0¢/kWh)
Your tankless water heater (electric) in Phoenix costs about $38/month at 14.0¢/kWh. See daily, monthly, and yearly costs, plus tips to cut your bill.
Phoenix, AZ Electricity Rate
14.0¢/kWh
Utility: Arizona Public Service (APS)
+8% vs national avg
National avg: 13.0¢/kWh
Daily Cost
$1.26
9.0 kWh/day
Monthly Cost
$38.27
274 kWh/mo
Annual Cost
$459
3,285 kWh/yr
Lifetime (20yr)
$9,185
energy only
Monthly Cost Breakdown in Phoenix
| Period | kWh | Phoenix Cost | National Avg | Difference |
|---|---|---|---|---|
| Daily | 9.0 | $1.26 | $1.17 | +$0.09 |
| Weekly | 63.0 | $8.81 | $8.19 | +$0.62 |
| Monthly | 273.8 | $38.27 | $35.59 | +$2.68 |
| Quarterly | 821.3 | $114.81 | $106.76 | +$8.05 |
| Annual | 3285.0 | $459.24 | $427.05 | +$32.19 |
Customize Your Tankless Water Heater (Electric) Cost
Adjust usage hours and electricity rate to calculate your exact cost in Phoenix.
Daily
$1.26
Monthly
$38.27
Annual
$459
20-Year
$9,185
Energy Saving Tips for Tankless Water Heater (Electric) in Phoenix
- ✓Phoenix electricity rates are 8% above the national average — energy efficiency matters more here.
- ✓An ENERGY STAR Tankless Water Heater (Electric) in Phoenix saves ~$92/year compared to standard models.
- ✓A smart Tankless Water Heater (Electric) with scheduling optimization can save ~$69/year at Phoenix rates.
- ✓Provides hot water on demand with no standby loss
- ✓Flush annually to remove scale
- ✓Requires dedicated electrical circuit
ENERGY STAR Savings: Upgrading to an ENERGY STAR Tankless Water Heater (Electric) in Phoenix saves approximately $92/year at local rates — $1,837 over the appliance lifetime.
Highest-Cost Appliances in Phoenix, AZ
See which appliances cost the most to run at Phoenix's 14.0¢/kWh electricity rate.
Level 2 EV Charger (240V)
Transportation · 7,200W
$1,812/yr
$150.98/mo
Electric Furnace
HVAC · 10,000W
$1,258/yr
$104.85/mo
Electric Tankless Water Heater
Water Heating · 18,000W
$918/yr
$76.54/mo
EV Charger (Level 2)
Garage · 7,200W
$906/yr
$75.49/mo
Boiler (Electric)
HVAC · 6,000W
$755/yr
$62.91/mo
Electric Water Heater (Tank)
Water Heating · 4,500W
$689/yr
$57.41/mo
Water Heater (Tank Electric)
Water Heating · 4,500W
$689/yr
$57.41/mo
Heat Pump
HVAC · 2,400W
$537/yr
$44.74/mo
Tankless Water Heater (Electric) Cost in Other Arizona Cities
Tankless Water Heater (Electric) Energy Cost FAQ — Phoenix, AZ
Understanding Tankless Water Heater (Electric) Energy Costs in Phoenix, AZ
In a major metro like Phoenix, electricity demand is high and rates reflect the cost of maintaining infrastructure for 1.6 million residents. Running a high-draw appliance like the Tankless Water Heater (Electric) (18,000W) at Phoenix's rate of 14.0¢/kWh costs approximately $459 per year — $32 more than the national average of $427.
Phoenix rates are 8% above the national average — a modest premium that adds $32 per year to Tankless Water Heater (Electric) operating costs. Over the appliance's 20-year lifespan, that's $644 in cumulative extra spending versus the national average.
With a cost of living index of 103, Phoenix is near the national median. The Tankless Water Heater (Electric)'s monthly cost of $38.27 represents a typical share of the average Phoenix electric bill of $128/month. Upgrading to an ENERGY STAR Tankless Water Heater (Electric) can cut energy use by up to 20%, saving approximately $92 per year at Phoenix rates.
Phoenix's moderate climate (avg 69.3°F) helps keep seasonal energy cost swings manageable for most appliances. A Tankless Water Heater (Electric) produces approximately 2.35 tons of CO2 annually at typical usage. Phoenix residents can reduce this footprint by choosing an ENERGY STAR certified unit, optimizing usage patterns, or investing in solar — see our solar savings calculator for Phoenix.
Compare All Energy Costs in Phoenix
See energy costs for 168+ household appliances at Phoenix's local electricity rate.