Tankless Water Heater (Electric) in Rockford — $559/yr to Run (17.0¢/kWh)
Your tankless water heater (electric) in Rockford costs about $47/month at 17.0¢/kWh. See daily, monthly, and yearly costs, plus tips to cut your bill.
Rockford, IL Electricity Rate
17.0¢/kWh
Utility: ComEd
+31% vs national avg
National avg: 13.0¢/kWh
Daily Cost
$1.53
9.0 kWh/day
Monthly Cost
$46.62
274 kWh/mo
Annual Cost
$559
3,285 kWh/yr
Lifetime (20yr)
$11,189
energy only
Monthly Cost Breakdown in Rockford
| Period | kWh | Rockford Cost | National Avg | Difference |
|---|---|---|---|---|
| Daily | 9.0 | $1.53 | $1.17 | +$0.36 |
| Weekly | 63.0 | $10.73 | $8.19 | +$2.54 |
| Monthly | 273.8 | $46.62 | $35.59 | +$11.03 |
| Quarterly | 821.3 | $139.86 | $106.76 | +$33.10 |
| Annual | 3285.0 | $559.44 | $427.05 | +$132.39 |
Customize Your Tankless Water Heater (Electric) Cost
Adjust usage hours and electricity rate to calculate your exact cost in Rockford.
Daily
$1.53
Monthly
$46.62
Annual
$559
20-Year
$11,189
Energy Saving Tips for Tankless Water Heater (Electric) in Rockford
- ✓Rockford electricity rates are 31% above the national average — energy efficiency matters more here.
- ✓An ENERGY STAR Tankless Water Heater (Electric) in Rockford saves ~$112/year compared to standard models.
- ✓A smart Tankless Water Heater (Electric) with scheduling optimization can save ~$84/year at Rockford 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 Rockford saves approximately $112/year at local rates — $2,238 over the appliance lifetime.
Highest-Cost Appliances in Rockford, IL
See which appliances cost the most to run at Rockford's 17.0¢/kWh electricity rate.
Level 2 EV Charger (240V)
Transportation · 7,200W
$2,207/yr
$183.92/mo
Electric Furnace
HVAC · 10,000W
$1,533/yr
$127.73/mo
Electric Tankless Water Heater
Water Heating · 18,000W
$1,119/yr
$93.24/mo
EV Charger (Level 2)
Garage · 7,200W
$1,104/yr
$91.96/mo
Boiler (Electric)
HVAC · 6,000W
$920/yr
$76.64/mo
Electric Water Heater (Tank)
Water Heating · 4,500W
$839/yr
$69.93/mo
Water Heater (Tank Electric)
Water Heating · 4,500W
$839/yr
$69.93/mo
Heat Pump
HVAC · 2,400W
$654/yr
$54.50/mo
Tankless Water Heater (Electric) Cost in Other Illinois Cities
| City | Rate | Annual Cost | vs Rockford |
|---|---|---|---|
| Rockford (current) | 17.0¢ | $559 | — |
| Chicago | 16.6¢ | $547 | $-13 |
| Aurora | 15.0¢ | $492 | $-68 |
| Joliet | 14.4¢ | $473 | $-86 |
| Naperville | 14.6¢ | $481 | $-78 |
| Elgin | 13.6¢ | $446 | $-114 |
| Springfield | 15.9¢ | $521 | $-38 |
| Peoria | 16.9¢ | $554 | $-6 |
| Waukegan | 14.3¢ | $470 | $-89 |
Tankless Water Heater (Electric) Energy Cost FAQ — Rockford, IL
Understanding Tankless Water Heater (Electric) Energy Costs in Rockford, IL
Rockford 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 Rockford's rate of 17.0¢/kWh costs approximately $559 per year — $132 more than the national average of $427.
Electricity in Rockford is significantly more expensive than the national average — 31% higher. For a Tankless Water Heater (Electric) used 0.5 hours per day, this rate premium adds up to $132 in extra annual costs. Energy-efficient models and usage habits have an outsized impact in high-rate markets like this.
Rockford's cost of living index of 92 is below the national average, and electricity costs reflect that affordability. The Tankless Water Heater (Electric) adds $46.62/month to a typical bill of $109. Upgrading to an ENERGY STAR Tankless Water Heater (Electric) can cut energy use by up to 20%, saving approximately $112 per year at Rockford rates.
Rockford's moderate climate (avg 48.6°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. Rockford 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 Rockford.
Compare All Energy Costs in Rockford
See energy costs for 168+ household appliances at Rockford's local electricity rate.