Smartphone Charger in Madison — $3/yr to Run (14.9¢/kWh)
Your smartphone charger in Madison costs about $0/month at 14.9¢/kWh. See daily, monthly, and yearly costs, plus tips to cut your bill.
Madison, WI Electricity Rate
14.9¢/kWh
Utility: Madison Gas & Electric (MGE)
+15% vs national avg
National avg: 13.0¢/kWh
Daily Cost
$0.01
0.1 kWh/day
Monthly Cost
$0.27
2 kWh/mo
Annual Cost
$3
22 kWh/yr
Lifetime (3yr)
$10
energy only
Monthly Cost Breakdown in Madison
| Period | kWh | Madison Cost | National Avg | Difference |
|---|---|---|---|---|
| Daily | 0.1 | $0.01 | $0.01 | +$0.00 |
| Weekly | 0.4 | $0.06 | $0.05 | +$0.01 |
| Monthly | 1.8 | $0.27 | $0.24 | +$0.04 |
| Quarterly | 5.5 | $0.82 | $0.71 | +$0.11 |
| Annual | 21.9 | $3.27 | $2.85 | +$0.42 |
Customize Your Smartphone Charger Cost
Adjust usage hours and electricity rate to calculate your exact cost in Madison.
Daily
$0.01
Monthly
$0.27
Annual
$3
3-Year
$10
Energy Saving Tips for Smartphone Charger in Madison
- ✓Madison electricity rates are 15% 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 Madison, WI
See which appliances cost the most to run at Madison's 14.9¢/kWh electricity rate.
Level 2 EV Charger (240V)
Transportation · 7,200W
$1,934/yr
$161.14/mo
Electric Furnace
HVAC · 10,000W
$1,343/yr
$111.90/mo
Electric Tankless Water Heater
Water Heating · 18,000W
$980/yr
$81.69/mo
EV Charger (Level 2)
Garage · 7,200W
$967/yr
$80.57/mo
Boiler (Electric)
HVAC · 6,000W
$806/yr
$67.14/mo
Electric Water Heater (Tank)
Water Heating · 4,500W
$735/yr
$61.27/mo
Water Heater (Tank Electric)
Water Heating · 4,500W
$735/yr
$61.27/mo
Heat Pump
HVAC · 2,400W
$573/yr
$47.74/mo
Smartphone Charger Cost in Other Wisconsin Cities
Smartphone Charger Energy Cost FAQ — Madison, WI
Understanding Smartphone Charger Energy Costs in Madison, WI
Madison is a mid-sized Wisconsin city where residential electricity rates from Madison Gas & Electric (MGE) are shaped by regional energy supply and local demand patterns. Running a low-draw appliance like the Smartphone Charger (20W) at Madison's rate of 14.9¢/kWh costs approximately $3 per year — $0 more than the national average of $3.
Madison rates are 15% above the national average — a modest premium that adds $0 per year to Smartphone Charger operating costs. Over the appliance's 3-year lifespan, that's $1 in cumulative extra spending versus the national average.
Madison's cost of living index of 92 is below the national average, and electricity costs reflect that affordability. The Smartphone Charger adds $0.27/month to a typical bill of $134. Since no ENERGY STAR or smart version is currently available for this appliance, reducing usage hours is the primary way to cut costs.
Madison's moderate climate (avg 57.4°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. Madison residents can reduce this footprint by optimizing usage patterns, or investing in solar — see our solar savings calculator for Madison.
Compare All Energy Costs in Madison
See energy costs for 178+ household appliances at Madison's local electricity rate.
Frequently Asked Questions
How much does it cost to run a Smartphone Charger in Madison, WI?
At Madison's average electricity rate of 14.9¢/kWh, a Smartphone Charger costs approximately $3 per year to run. That's about $0.27 per month with typical usage of 3 hours per day.
What is the electricity rate in Madison, WI?
The average residential electricity rate in Madison, WI is 14.9¢/kWh, which is 15% above the national average of 13.0¢/kWh. The primary utility provider is Madison Gas & Electric (MGE).
How much electricity does a Smartphone Charger use per year?
A Smartphone Charger uses approximately 20 watts and consumes about 22 kWh per year with typical usage of 3 hours/day for 365 days/year.
Is a Smartphone Charger expensive to run in Madison?
Compared to the national average cost of $3/year, running a Smartphone Charger in Madison costs $0 more per year due to higher local electricity rates.
How can I reduce my Smartphone Charger energy cost in Madison?
To reduce Smartphone Charger costs in Madison: Unplug charger when not in use. Use original or certified chargers. Consider using a smart plug to monitor and optimize usage. Also check with Madison Gas & Electric (MGE) for local energy efficiency rebates and programs.