Smartphone Charger in Knoxville — $3/yr to Run (12.0¢/kWh)
Your smartphone charger in Knoxville costs about $0/month at 12.0¢/kWh. See daily, monthly, and yearly costs, plus tips to cut your bill.
Knoxville, TN Electricity Rate
12.0¢/kWh
Utility: Nashville Electric Service
-8% vs national avg
National avg: 13.0¢/kWh
Daily Cost
$0.01
0.1 kWh/day
Monthly Cost
$0.22
2 kWh/mo
Annual Cost
$3
22 kWh/yr
Lifetime (3yr)
$8
energy only
Monthly Cost Breakdown in Knoxville
| Period | kWh | Knoxville 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 | $0.22 | $0.24 | $-0.02 |
| Quarterly | 5.5 | $0.66 | $0.71 | $-0.05 |
| Annual | 21.9 | $2.63 | $2.85 | $-0.22 |
Customize Your Smartphone Charger Cost
Adjust usage hours and electricity rate to calculate your exact cost in Knoxville.
Daily
$0.01
Monthly
$0.22
Annual
$3
3-Year
$8
Energy Saving Tips for Smartphone Charger in Knoxville
- ✓Knoxville has below-average electricity rates, but saving energy still reduces your carbon footprint.
- ✓Unplug charger when not in use
- ✓Use original or certified chargers
- ✓Avoid overnight charging
Highest-Cost Appliances in Knoxville, TN
See which appliances cost the most to run at Knoxville's 12.0¢/kWh electricity rate.
Level 2 EV Charger (240V)
Transportation · 7,200W
$1,555/yr
$129.60/mo
Electric Furnace
HVAC · 10,000W
$1,080/yr
$90.00/mo
Electric Tankless Water Heater
Water Heating · 18,000W
$788/yr
$65.70/mo
EV Charger (Level 2)
Garage · 7,200W
$778/yr
$64.80/mo
Boiler (Electric)
HVAC · 6,000W
$648/yr
$54.00/mo
Electric Water Heater (Tank)
Water Heating · 4,500W
$591/yr
$49.27/mo
Water Heater (Tank Electric)
Water Heating · 4,500W
$591/yr
$49.27/mo
Heat Pump
HVAC · 2,400W
$461/yr
$38.40/mo
Smartphone Charger Cost in Other Tennessee Cities
| City | Rate | Annual Cost | vs Knoxville |
|---|---|---|---|
| Knoxville (current) | 12.0¢ | $3 | — |
| Nashville | 12.0¢ | $3 | $-0 |
| Memphis | 13.1¢ | $3 | +$0 |
| Chattanooga | 12.3¢ | $3 | +$0 |
| Clarksville | 11.3¢ | $2 | $-0 |
| Murfreesboro | 12.7¢ | $3 | +$0 |
| Franklin | 12.5¢ | $3 | +$0 |
| Johnson City | 11.9¢ | $3 | $-0 |
| Jackson | 9.4¢ | $2 | $-1 |
Smartphone Charger Energy Cost FAQ — Knoxville, TN
Understanding Smartphone Charger Energy Costs in Knoxville, TN
Knoxville is a mid-sized Tennessee city where residential electricity rates from Nashville Electric Service are shaped by regional energy supply and local demand patterns. Running a low-draw appliance like the Smartphone Charger (20W) at Knoxville's rate of 12.0¢/kWh costs approximately $3 per year — $0 less than the national average of $3.
Rates in Knoxville are close to the national average, so the Smartphone Charger's annual cost of $3 is broadly representative of what most US households pay. Over the 3-year expected lifespan, total energy cost reaches $8.
With a cost of living index of 97, Knoxville is near the national median. The Smartphone Charger's monthly cost of $0.22 represents a typical share of the average Knoxville electric bill of $161/month. Since no ENERGY STAR or smart version is currently available for this appliance, reducing usage hours is the primary way to cut costs.
Knoxville's moderate climate (avg 62.8°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. Knoxville residents can reduce this footprint by optimizing usage patterns, or investing in solar — see our solar savings calculator for Knoxville.
Compare All Energy Costs in Knoxville
See energy costs for 168+ household appliances at Knoxville's local electricity rate.