Smartphone Charger in San Diego — $6/yr to Run (28.8¢/kWh)
Your smartphone charger in San Diego costs about $1/month at 28.8¢/kWh. See daily, monthly, and yearly costs, plus tips to cut your bill.
San Diego, CA Electricity Rate
28.8¢/kWh
Utility: San Diego Gas & Electric (SDG&E)
+122% vs national avg
National avg: 13.0¢/kWh
Daily Cost
$0.02
0.1 kWh/day
Monthly Cost
$0.53
2 kWh/mo
Annual Cost
$6
22 kWh/yr
Lifetime (3yr)
$19
energy only
Monthly Cost Breakdown in San Diego
| Period | kWh | San Diego Cost | National Avg | Difference |
|---|---|---|---|---|
| Daily | 0.1 | $0.02 | $0.01 | +$0.01 |
| Weekly | 0.4 | $0.12 | $0.05 | +$0.07 |
| Monthly | 1.8 | $0.53 | $0.24 | +$0.29 |
| Quarterly | 5.5 | $1.58 | $0.71 | +$0.87 |
| Annual | 21.9 | $6.31 | $2.85 | +$3.46 |
Customize Your Smartphone Charger Cost
Adjust usage hours and electricity rate to calculate your exact cost in San Diego.
Daily
$0.02
Monthly
$0.53
Annual
$6
3-Year
$19
Energy Saving Tips for Smartphone Charger in San Diego
- ✓San Diego electricity rates are 122% 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 San Diego, CA
See which appliances cost the most to run at San Diego's 28.8¢/kWh electricity rate.
Level 2 EV Charger (240V)
Transportation · 7,200W
$3,732/yr
$311.04/mo
Electric Furnace
HVAC · 10,000W
$2,592/yr
$216.00/mo
Electric Tankless Water Heater
Water Heating · 18,000W
$1,892/yr
$157.68/mo
EV Charger (Level 2)
Garage · 7,200W
$1,866/yr
$155.52/mo
Boiler (Electric)
HVAC · 6,000W
$1,555/yr
$129.60/mo
Electric Water Heater (Tank)
Water Heating · 4,500W
$1,419/yr
$118.26/mo
Water Heater (Tank Electric)
Water Heating · 4,500W
$1,419/yr
$118.26/mo
Heat Pump
HVAC · 2,400W
$1,106/yr
$92.16/mo
Smartphone Charger Cost in Other California Cities
| City | Rate | Annual Cost | vs San Diego |
|---|---|---|---|
| San Diego (current) | 28.8¢ | $6 | — |
| Los Angeles | 30.5¢ | $7 | +$0 |
| San Jose | 34.7¢ | $8 | +$1 |
| San Francisco | 26.5¢ | $6 | $-1 |
| Fresno | 29.9¢ | $7 | +$0 |
| Sacramento | 24.7¢ | $5 | $-1 |
| Long Beach | 33.5¢ | $7 | +$1 |
| Oakland | 27.9¢ | $6 | $-0 |
| Bakersfield | 27.9¢ | $6 | $-0 |
Smartphone Charger Energy Cost FAQ — San Diego, CA
Understanding Smartphone Charger Energy Costs in San Diego, CA
In a major metro like San Diego, electricity demand is high and rates reflect the cost of maintaining infrastructure for 1.4 million residents. Running a low-draw appliance like the Smartphone Charger (20W) at San Diego's rate of 28.8¢/kWh costs approximately $6 per year — $3 more than the national average of $3.
Electricity in San Diego is significantly more expensive than the national average — 122% higher. For a Smartphone Charger used 3 hours per day, this rate premium adds up to $3 in extra annual costs. Energy-efficient models and usage habits have an outsized impact in high-rate markets like this.
San Diego has a high cost of living (index: 141), which means electricity is just one of many above-average expenses. Reducing appliance energy costs — even by small amounts — contributes to meaningful household savings in this market. Since no ENERGY STAR or smart version is currently available for this appliance, reducing usage hours is the primary way to cut costs.
In San Diego's warm climate (avg 72.3°F), HVAC-related appliances tend to run more frequently, compounding energy costs. A Smartphone Charger produces approximately 0.02 tons of CO2 annually at typical usage. San Diego residents can reduce this footprint by optimizing usage patterns, or investing in solar — see our solar savings calculator for San Diego.
Compare All Energy Costs in San Diego
See energy costs for 168+ household appliances at San Diego's local electricity rate.