Electric Tankless Water Heater in Naperville — $963/yr to Run (14.6¢/kWh)
Your electric tankless water heater in Naperville costs about $80/month at 14.6¢/kWh. See daily, monthly, and yearly costs, plus tips to cut your bill.
Naperville, IL Electricity Rate
14.6¢/kWh
Utility: ComEd
+13% vs national avg
National avg: 13.0¢/kWh
Daily Cost
$2.64
18.0 kWh/day
Monthly Cost
$80.21
548 kWh/mo
Annual Cost
$963
6,570 kWh/yr
Lifetime (20yr)
$19,250
energy only
Monthly Cost Breakdown in Naperville
| Period | kWh | Naperville Cost | National Avg | Difference |
|---|---|---|---|---|
| Daily | 18.0 | $2.64 | $2.34 | +$0.30 |
| Weekly | 126.0 | $18.46 | $16.38 | +$2.08 |
| Monthly | 547.5 | $80.21 | $71.17 | +$9.03 |
| Quarterly | 1642.5 | $240.63 | $213.53 | +$27.10 |
| Annual | 6570.0 | $962.50 | $854.10 | +$108.40 |
Customize Your Electric Tankless Water Heater Cost
Adjust usage hours and electricity rate to calculate your exact cost in Naperville.
Daily
$2.64
Monthly
$80.21
Annual
$963
20-Year
$19,250
Energy Saving Tips for Electric Tankless Water Heater in Naperville
- ✓Naperville electricity rates are 13% above the national average — energy efficiency matters more here.
- ✓An ENERGY STAR Electric Tankless Water Heater in Naperville saves ~$231/year compared to standard models.
- ✓A smart Electric Tankless Water Heater with scheduling optimization can save ~$144/year at Naperville rates.
- ✓Install point-of-use units for remote fixtures
- ✓Size properly for peak demand
- ✓Consider electrical upgrade
ENERGY STAR Savings: Upgrading to an ENERGY STAR Electric Tankless Water Heater in Naperville saves approximately $231/year at local rates — $4,620 over the appliance lifetime.
Highest-Cost Appliances in Naperville, IL
See which appliances cost the most to run at Naperville's 14.6¢/kWh electricity rate.
Level 2 EV Charger (240V)
Transportation · 7,200W
$1,899/yr
$158.22/mo
Electric Furnace
HVAC · 10,000W
$1,319/yr
$109.88/mo
EV Charger (Level 2)
Garage · 7,200W
$949/yr
$79.11/mo
Boiler (Electric)
HVAC · 6,000W
$791/yr
$65.92/mo
Electric Water Heater (Tank)
Water Heating · 4,500W
$722/yr
$60.16/mo
Water Heater (Tank Electric)
Water Heating · 4,500W
$722/yr
$60.16/mo
Heat Pump
HVAC · 2,400W
$563/yr
$46.88/mo
Hot Tub / Spa
Pool & Spa · 3,000W
$527/yr
$43.95/mo
Electric Tankless Water Heater Cost in Other Illinois Cities
Electric Tankless Water Heater Energy Cost FAQ — Naperville, IL
Understanding Electric Tankless Water Heater Energy Costs in Naperville, IL
Naperville is a mid-sized Illinois city where residential electricity rates from ComEd are shaped by regional energy supply and local demand patterns. Running a high-draw appliance like the Electric Tankless Water Heater (18,000W) at Naperville's rate of 14.6¢/kWh costs approximately $963 per year — $108 more than the national average of $854.
Naperville rates are 13% above the national average — a modest premium that adds $108 per year to Electric Tankless Water Heater operating costs. Over the appliance's 20-year lifespan, that's $2,168 in cumulative extra spending versus the national average.
Naperville's cost of living index of 90 is below the national average, and electricity costs reflect that affordability. The Electric Tankless Water Heater adds $80.21/month to a typical bill of $128. Upgrading to an ENERGY STAR Electric Tankless Water Heater can cut energy use by up to 24%, saving approximately $231 per year at Naperville rates.
Naperville's moderate climate (avg 54.1°F) helps keep seasonal energy cost swings manageable for most appliances. A Electric Tankless Water Heater produces approximately 2.1 tons of CO2 annually at typical usage. Naperville 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 Naperville.
Compare All Energy Costs in Naperville
See energy costs for 168+ household appliances at Naperville's local electricity rate.