Window Air Conditioner in Rockford — $229/yr to Run (17.0¢/kWh)
Your window air conditioner in Rockford costs about $19/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
$1.91
11.2 kWh/day
Monthly Cost
$19.07
112 kWh/mo
Annual Cost
$229
1,344 kWh/yr
Lifetime (10yr)
$2,289
energy only
Monthly Cost Breakdown in Rockford
| Period | kWh | Rockford Cost | National Avg | Difference |
|---|---|---|---|---|
| Daily | 11.2 | $1.91 | $1.46 | +$0.45 |
| Weekly | 78.4 | $13.35 | $10.19 | +$3.16 |
| Monthly | 112.0 | $19.07 | $14.56 | +$4.51 |
| Quarterly | 336.0 | $57.22 | $43.68 | +$13.54 |
| Annual | 1344.0 | $228.88 | $174.72 | +$54.16 |
Customize Your Window Air Conditioner Cost
Adjust usage hours and electricity rate to calculate your exact cost in Rockford.
Daily
$1.91
Monthly
$19.07
Annual
$229
10-Year
$2,289
Energy Saving Tips for Window Air Conditioner in Rockford
- ✓Rockford electricity rates are 31% above the national average — energy efficiency matters more here.
- ✓An ENERGY STAR Window Air Conditioner in Rockford saves ~$23/year compared to standard models.
- ✓A smart Window Air Conditioner with scheduling optimization can save ~$34/year at Rockford rates.
- ✓Choose the right size for your room
- ✓Seal gaps around the unit
- ✓Clean filter biweekly
ENERGY STAR Savings: Upgrading to an ENERGY STAR Window Air Conditioner in Rockford saves approximately $23/year at local rates — $229 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
Window Air Conditioner Cost in Other Illinois Cities
| City | Rate | Annual Cost | vs Rockford |
|---|---|---|---|
| Rockford (current) | 17.0¢ | $229 | — |
| Chicago | 16.6¢ | $224 | $-5 |
| Aurora | 15.0¢ | $201 | $-28 |
| Joliet | 14.4¢ | $194 | $-35 |
| Naperville | 14.6¢ | $197 | $-32 |
| Elgin | 13.6¢ | $182 | $-47 |
| Springfield | 15.9¢ | $213 | $-16 |
| Peoria | 16.9¢ | $226 | $-2 |
| Waukegan | 14.3¢ | $192 | $-37 |
Window Air Conditioner Energy Cost FAQ — Rockford, IL
Understanding Window Air Conditioner 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 moderate-draw appliance like the Window Air Conditioner (1,400W) at Rockford's rate of 17.0¢/kWh costs approximately $229 per year — $54 more than the national average of $175.
Electricity in Rockford is significantly more expensive than the national average — 31% higher. For a Window Air Conditioner used 8 hours per day, this rate premium adds up to $54 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 Window Air Conditioner adds $19.07/month to a typical bill of $109. Upgrading to an ENERGY STAR Window Air Conditioner can cut energy use by up to 10%, saving approximately $23 per year at Rockford rates.
Rockford's moderate climate (avg 48.6°F) helps keep seasonal energy cost swings manageable for most appliances. A Window Air Conditioner produces approximately 0.96 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.