Electric Tankless Water Heater in Rockford — $1,119/yr to Run (17.0¢/kWh)
Your electric tankless water heater in Rockford costs about $93/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
$3.07
18.0 kWh/day
Monthly Cost
$93.24
548 kWh/mo
Annual Cost
$1,119
6,570 kWh/yr
Lifetime (20yr)
$22,377
energy only
Monthly Cost Breakdown in Rockford
| Period | kWh | Rockford Cost | National Avg | Difference |
|---|---|---|---|---|
| Daily | 18.0 | $3.07 | $2.34 | +$0.73 |
| Weekly | 126.0 | $21.46 | $16.38 | +$5.08 |
| Monthly | 547.5 | $93.24 | $71.17 | +$22.06 |
| Quarterly | 1642.5 | $279.72 | $213.53 | +$66.19 |
| Annual | 6570.0 | $1118.87 | $854.10 | +$264.77 |
Customize Your Electric Tankless Water Heater Cost
Adjust usage hours and electricity rate to calculate your exact cost in Rockford.
Daily
$3.07
Monthly
$93.24
Annual
$1,119
20-Year
$22,377
Energy Saving Tips for Electric Tankless Water Heater in Rockford
- ✓Rockford electricity rates are 31% above the national average — energy efficiency matters more here.
- ✓An ENERGY STAR Electric Tankless Water Heater in Rockford saves ~$269/year compared to standard models.
- ✓A smart Electric Tankless Water Heater with scheduling optimization can save ~$168/year at Rockford 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 Rockford saves approximately $269/year at local rates — $5,371 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
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
Hot Tub / Spa
Pool & Spa · 3,000W
$613/yr
$51.09/mo
Electric Tankless Water Heater Cost in Other Illinois Cities
| City | Rate | Annual Cost | vs Rockford |
|---|---|---|---|
| Rockford (current) | 17.0¢ | $1,119 | — |
| Chicago | 16.6¢ | $1,093 | $-26 |
| Aurora | 15.0¢ | $984 | $-135 |
| Joliet | 14.4¢ | $946 | $-173 |
| Naperville | 14.6¢ | $963 | $-156 |
| Elgin | 13.6¢ | $892 | $-227 |
| Springfield | 15.9¢ | $1,042 | $-77 |
| Peoria | 16.9¢ | $1,107 | $-12 |
| Waukegan | 14.3¢ | $940 | $-179 |
Electric Tankless Water Heater Energy Cost FAQ — Rockford, IL
Understanding Electric Tankless Water Heater 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 Electric Tankless Water Heater (18,000W) at Rockford's rate of 17.0¢/kWh costs approximately $1,119 per year — $265 more than the national average of $854.
Electricity in Rockford is significantly more expensive than the national average — 31% higher. For a Electric Tankless Water Heater used 1 hours per day, this rate premium adds up to $265 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 Electric Tankless Water Heater adds $93.24/month to a typical bill of $109. Upgrading to an ENERGY STAR Electric Tankless Water Heater can cut energy use by up to 24%, saving approximately $269 per year at Rockford rates.
Rockford's moderate climate (avg 48.6°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. 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.