Tankless Water Heater (Electric) in Tempe — $442/yr to Run (13.5¢/kWh)
Your tankless water heater (electric) in Tempe costs about $37/month at 13.5¢/kWh. See daily, monthly, and yearly costs, plus tips to cut your bill.
Tempe, AZ Electricity Rate
13.5¢/kWh
Utility: Arizona Public Service
+4% vs national avg
National avg: 13.0¢/kWh
Daily Cost
$1.21
9.0 kWh/day
Monthly Cost
$36.87
274 kWh/mo
Annual Cost
$442
3,285 kWh/yr
Lifetime (20yr)
$8,850
energy only
Monthly Cost Breakdown in Tempe
| Period | kWh | Tempe Cost | National Avg | Difference |
|---|---|---|---|---|
| Daily | 9.0 | $1.21 | $1.17 | +$0.04 |
| Weekly | 63.0 | $8.49 | $8.19 | +$0.30 |
| Monthly | 273.8 | $36.87 | $35.59 | +$1.29 |
| Quarterly | 821.3 | $110.62 | $106.76 | +$3.86 |
| Annual | 3285.0 | $442.49 | $427.05 | +$15.44 |
Customize Your Tankless Water Heater (Electric) Cost
Adjust usage hours and electricity rate to calculate your exact cost in Tempe.
Daily
$1.21
Monthly
$36.87
Annual
$442
20-Year
$8,850
Energy Saving Tips for Tankless Water Heater (Electric) in Tempe
- ✓Tempe electricity rates are 4% above the national average — energy efficiency matters more here.
- ✓An ENERGY STAR Tankless Water Heater (Electric) in Tempe saves ~$88/year compared to standard models.
- ✓A smart Tankless Water Heater (Electric) with scheduling optimization can save ~$66/year at Tempe 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 Tempe saves approximately $88/year at local rates — $1,770 over the appliance lifetime.
Highest-Cost Appliances in Tempe, AZ
See which appliances cost the most to run at Tempe's 13.5¢/kWh electricity rate.
Level 2 EV Charger (240V)
Transportation · 7,200W
$1,746/yr
$145.48/mo
Electric Furnace
HVAC · 10,000W
$1,212/yr
$101.02/mo
Electric Tankless Water Heater
Water Heating · 18,000W
$885/yr
$73.75/mo
EV Charger (Level 2)
Garage · 7,200W
$873/yr
$72.74/mo
Boiler (Electric)
HVAC · 6,000W
$727/yr
$60.61/mo
Electric Water Heater (Tank)
Water Heating · 4,500W
$664/yr
$55.31/mo
Water Heater (Tank Electric)
Water Heating · 4,500W
$664/yr
$55.31/mo
Heat Pump
HVAC · 2,400W
$517/yr
$43.10/mo
Tankless Water Heater (Electric) Cost in Other Arizona Cities
Tankless Water Heater (Electric) Energy Cost FAQ — Tempe, AZ
Understanding Tankless Water Heater (Electric) Energy Costs in Tempe, AZ
Tempe is a mid-sized Arizona city where residential electricity rates from Arizona Public Service are shaped by regional energy supply and local demand patterns. Running a high-draw appliance like the Tankless Water Heater (Electric) (18,000W) at Tempe's rate of 13.5¢/kWh costs approximately $442 per year — $15 more than the national average of $427.
Tempe rates are 4% above the national average — a modest premium that adds $15 per year to Tankless Water Heater (Electric) operating costs. Over the appliance's 20-year lifespan, that's $309 in cumulative extra spending versus the national average.
Tempe's cost of living index of 94 is below the national average, and electricity costs reflect that affordability. The Tankless Water Heater (Electric) adds $36.87/month to a typical bill of $130. Upgrading to an ENERGY STAR Tankless Water Heater (Electric) can cut energy use by up to 20%, saving approximately $88 per year at Tempe rates.
Tempe's moderate climate (avg 65°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. Tempe 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 Tempe.
Compare All Energy Costs in Tempe
See energy costs for 168+ household appliances at Tempe's local electricity rate.