Smartphone Charger in Cary — $3/yr to Run (13.1¢/kWh)
Your smartphone charger in Cary costs about $0/month at 13.1¢/kWh. See daily, monthly, and yearly costs, plus tips to cut your bill.
Cary, NC Electricity Rate
13.1¢/kWh
Utility: Duke Energy Carolinas
+1% vs national avg
National avg: 13.0¢/kWh
Daily Cost
$0.01
0.1 kWh/day
Monthly Cost
$0.24
2 kWh/mo
Annual Cost
$3
22 kWh/yr
Lifetime (3yr)
$9
energy only
Monthly Cost Breakdown in Cary
| Period | kWh | Cary Cost | National Avg | Difference |
|---|---|---|---|---|
| Daily | 0.1 | $0.01 | $0.01 | +$0.00 |
| Weekly | 0.4 | $0.05 | $0.05 | +$0.00 |
| Monthly | 1.8 | $0.24 | $0.24 | +$0.00 |
| Quarterly | 5.5 | $0.72 | $0.71 | +$0.00 |
| Annual | 21.9 | $2.86 | $2.85 | +$0.02 |
Customize Your Smartphone Charger Cost
Adjust usage hours and electricity rate to calculate your exact cost in Cary.
Daily
$0.01
Monthly
$0.24
Annual
$3
3-Year
$9
Energy Saving Tips for Smartphone Charger in Cary
- ✓Cary electricity rates are 1% 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 Cary, NC
See which appliances cost the most to run at Cary's 13.1¢/kWh electricity rate.
Level 2 EV Charger (240V)
Transportation · 7,200W
$1,694/yr
$141.16/mo
Electric Furnace
HVAC · 10,000W
$1,176/yr
$98.03/mo
Electric Tankless Water Heater
Water Heating · 18,000W
$859/yr
$71.56/mo
EV Charger (Level 2)
Garage · 7,200W
$847/yr
$70.58/mo
Boiler (Electric)
HVAC · 6,000W
$706/yr
$58.82/mo
Electric Water Heater (Tank)
Water Heating · 4,500W
$644/yr
$53.67/mo
Water Heater (Tank Electric)
Water Heating · 4,500W
$644/yr
$53.67/mo
Heat Pump
HVAC · 2,400W
$502/yr
$41.82/mo
Smartphone Charger Cost in Other North Carolina Cities
| City | Rate | Annual Cost | vs Cary |
|---|---|---|---|
| Cary (current) | 13.1¢ | $3 | — |
| Charlotte | 13.3¢ | $3 | +$0 |
| Raleigh | 12.7¢ | $3 | $-0 |
| Greensboro | 13.6¢ | $3 | +$0 |
| Durham | 13.3¢ | $3 | +$0 |
| Winston-Salem | 14.0¢ | $3 | +$0 |
| Fayetteville | 12.7¢ | $3 | $-0 |
| Wilmington | 14.1¢ | $3 | +$0 |
| High Point | 13.5¢ | $3 | +$0 |
Smartphone Charger Energy Cost FAQ — Cary, NC
Understanding Smartphone Charger Energy Costs in Cary, NC
Cary is a mid-sized North Carolina city where residential electricity rates from Duke Energy Carolinas are shaped by regional energy supply and local demand patterns. Running a low-draw appliance like the Smartphone Charger (20W) at Cary's rate of 13.1¢/kWh costs approximately $3 per year — $0 more than the national average of $3.
Cary rates are 1% 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 $0 in cumulative extra spending versus the national average.
With a cost of living index of 102, Cary is near the national median. The Smartphone Charger's monthly cost of $0.24 represents a typical share of the average Cary electric bill of $133/month. Since no ENERGY STAR or smart version is currently available for this appliance, reducing usage hours is the primary way to cut costs.
Cary's moderate climate (avg 67.3°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. Cary residents can reduce this footprint by optimizing usage patterns, or investing in solar — see our solar savings calculator for Cary.
Compare All Energy Costs in Cary
See energy costs for 168+ household appliances at Cary's local electricity rate.