Smartphone Charger in Rockford — $4/yr to Run (17.0¢/kWh)
Your smartphone charger in Rockford costs about $0/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
$0.01
0.1 kWh/day
Monthly Cost
$0.31
2 kWh/mo
Annual Cost
$4
22 kWh/yr
Lifetime (3yr)
$11
energy only
Monthly Cost Breakdown in Rockford
| Period | kWh | Rockford Cost | National Avg | Difference |
|---|---|---|---|---|
| Daily | 0.1 | $0.01 | $0.01 | +$0.00 |
| Weekly | 0.4 | $0.07 | $0.05 | +$0.02 |
| Monthly | 1.8 | $0.31 | $0.24 | +$0.07 |
| Quarterly | 5.5 | $0.93 | $0.71 | +$0.22 |
| Annual | 21.9 | $3.73 | $2.85 | +$0.88 |
Customize Your Smartphone Charger Cost
Adjust usage hours and electricity rate to calculate your exact cost in Rockford.
Daily
$0.01
Monthly
$0.31
Annual
$4
3-Year
$11
Energy Saving Tips for Smartphone Charger in Rockford
- ✓Rockford electricity rates are 31% above the national average — energy efficiency matters more here.
- ✓Unplug charger when not in use
- ✓Use original or certified chargers
- ✓Avoid overnight charging
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
Smartphone Charger Cost in Other Illinois Cities
| City | Rate | Annual Cost | vs Rockford |
|---|---|---|---|
| Rockford (current) | 17.0¢ | $4 | — |
| Chicago | 16.6¢ | $4 | $-0 |
| Aurora | 15.0¢ | $3 | $-0 |
| Joliet | 14.4¢ | $3 | $-1 |
| Naperville | 14.6¢ | $3 | $-1 |
| Elgin | 13.6¢ | $3 | $-1 |
| Springfield | 15.9¢ | $3 | $-0 |
| Peoria | 16.9¢ | $4 | $-0 |
| Waukegan | 14.3¢ | $3 | $-1 |
Smartphone Charger Energy Cost FAQ — Rockford, IL
Understanding Smartphone Charger 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 low-draw appliance like the Smartphone Charger (20W) at Rockford's rate of 17.0¢/kWh costs approximately $4 per year — $1 more than the national average of $3.
Electricity in Rockford is significantly more expensive than the national average — 31% higher. For a Smartphone Charger used 3 hours per day, this rate premium adds up to $1 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 Smartphone Charger adds $0.31/month to a typical bill of $109. Since no ENERGY STAR or smart version is currently available for this appliance, reducing usage hours is the primary way to cut costs.
Rockford's moderate climate (avg 48.6°F) helps keep seasonal energy cost swings manageable for most appliances. A Smartphone Charger produces approximately 0.02 tons of CO2 annually at typical usage. Rockford residents can reduce this footprint by 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.