Tankless Water Heater (Electric) in Joliet — $473/yr to Run (14.4¢/kWh)
Your tankless water heater (electric) in Joliet costs about $39/month at 14.4¢/kWh. See daily, monthly, and yearly costs, plus tips to cut your bill.
Joliet, IL Electricity Rate
14.4¢/kWh
Utility: ComEd
+11% vs national avg
National avg: 13.0¢/kWh
Daily Cost
$1.30
9.0 kWh/day
Monthly Cost
$39.42
274 kWh/mo
Annual Cost
$473
3,285 kWh/yr
Lifetime (20yr)
$9,461
energy only
Monthly Cost Breakdown in Joliet
| Period | kWh | Joliet Cost | National Avg | Difference |
|---|---|---|---|---|
| Daily | 9.0 | $1.30 | $1.17 | +$0.13 |
| Weekly | 63.0 | $9.07 | $8.19 | +$0.88 |
| Monthly | 273.8 | $39.42 | $35.59 | +$3.83 |
| Quarterly | 821.3 | $118.26 | $106.76 | +$11.50 |
| Annual | 3285.0 | $473.04 | $427.05 | +$45.99 |
Customize Your Tankless Water Heater (Electric) Cost
Adjust usage hours and electricity rate to calculate your exact cost in Joliet.
Daily
$1.30
Monthly
$39.42
Annual
$473
20-Year
$9,461
Energy Saving Tips for Tankless Water Heater (Electric) in Joliet
- ✓Joliet electricity rates are 11% above the national average — energy efficiency matters more here.
- ✓An ENERGY STAR Tankless Water Heater (Electric) in Joliet saves ~$95/year compared to standard models.
- ✓A smart Tankless Water Heater (Electric) with scheduling optimization can save ~$71/year at Joliet 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 Joliet saves approximately $95/year at local rates — $1,892 over the appliance lifetime.
Highest-Cost Appliances in Joliet, IL
See which appliances cost the most to run at Joliet's 14.4¢/kWh electricity rate.
Level 2 EV Charger (240V)
Transportation · 7,200W
$1,866/yr
$155.52/mo
Electric Furnace
HVAC · 10,000W
$1,296/yr
$108.00/mo
Electric Tankless Water Heater
Water Heating · 18,000W
$946/yr
$78.84/mo
EV Charger (Level 2)
Garage · 7,200W
$933/yr
$77.76/mo
Boiler (Electric)
HVAC · 6,000W
$778/yr
$64.80/mo
Electric Water Heater (Tank)
Water Heating · 4,500W
$710/yr
$59.13/mo
Water Heater (Tank Electric)
Water Heating · 4,500W
$710/yr
$59.13/mo
Heat Pump
HVAC · 2,400W
$553/yr
$46.08/mo
Tankless Water Heater (Electric) Cost in Other Illinois Cities
| City | Rate | Annual Cost | vs Joliet |
|---|---|---|---|
| Joliet (current) | 14.4¢ | $473 | — |
| Chicago | 16.6¢ | $547 | +$74 |
| Aurora | 15.0¢ | $492 | +$19 |
| Naperville | 14.6¢ | $481 | +$8 |
| Rockford | 17.0¢ | $559 | +$86 |
| Elgin | 13.6¢ | $446 | $-27 |
| Springfield | 15.9¢ | $521 | +$48 |
| Peoria | 16.9¢ | $554 | +$80 |
| Waukegan | 14.3¢ | $470 | $-3 |
Tankless Water Heater (Electric) Energy Cost FAQ — Joliet, IL
Understanding Tankless Water Heater (Electric) Energy Costs in Joliet, IL
Joliet 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 Tankless Water Heater (Electric) (18,000W) at Joliet's rate of 14.4¢/kWh costs approximately $473 per year — $46 more than the national average of $427.
Joliet rates are 11% above the national average — a modest premium that adds $46 per year to Tankless Water Heater (Electric) operating costs. Over the appliance's 20-year lifespan, that's $920 in cumulative extra spending versus the national average.
Joliet's cost of living index of 92 is below the national average, and electricity costs reflect that affordability. The Tankless Water Heater (Electric) adds $39.42/month to a typical bill of $129. Upgrading to an ENERGY STAR Tankless Water Heater (Electric) can cut energy use by up to 20%, saving approximately $95 per year at Joliet rates.
Joliet's moderate climate (avg 59.4°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. Joliet 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 Joliet.
Compare All Energy Costs in Joliet
See energy costs for 168+ household appliances at Joliet's local electricity rate.