How Much Does It Really Cost to Run Appliances in California?
A Conservative Energy Guide to Appliance Costs in California
Electricity prices in California vary significantly by provider and region. Whether you're in San Diego, Los Angeles, or Rural Northern California, the actual cost to run your appliances can be very different — even with the same equipment and usage.
This guide provides a conservative estimate of what common appliances cost to run, using an average rate of $0.14 per kWh as a baseline. Some Californians pay less. Many — especially those in San Diego — pay much more during peak hours.
⚡ Understanding Rate Differences
California’s electric market is divided across multiple utilities, each with their own Time-of-Use (TOU) rate schedules. While some parts of the state may see off-peak rates under $0.20/kWh, peak periods in San Diego County (SDG&E territory) often exceed $0.50/kWh.
Use the map above, or visit mykwhnow.com/tools/california-rates, to explore real-time rates by county and provider.
🧮 Conservative Appliance Cost Estimates (at 14¢ per kWh)
These numbers offer a low-estimate baseline — they help you understand minimum likely costs. If you're in an area like San Diego or with limited off-peak hours, you’ll want to multiply accordingly.
| Appliance | Power (Watts) | Daily Use | Monthly Cost (14¢/kWh) |
|---|---|---|---|
| Refrigerator (Energy Star) | 150 W | 24 hrs | $15.12 |
| LED Light Bulb (x5) | 50 W total | 5 hrs/day | $1.05 |
| Microwave Oven | 1000 W | 15 min/day | $1.05 |
| Laptop Charger | 60 W | 4 hrs/day | $1.01 |
| Window AC Unit | 1000 W | 4 hrs/day | $17.00 |
| Clothes Washer | 500 W | 5 uses/mo | $0.17 |
| Clothes Dryer (electric) | 3000 W | 5 uses/mo | $2.10 |
| Dishwasher | 1200 W | 10 uses/mo | $1.68 |
| Electric Oven | 2500 W | 30 min/day | $5.25 |
| Coffee Maker | 900 W | 20 min/day | $1.26 |
ℹ️ Multiply by your actual kWh cost
Example: In San Diego, where peak pricing can reach $0.55/kWh, that $5.25/month oven could cost you closer to $20/month — or more if used during peak.
🏷️ A Note on Energy Guide Labels
You’ve probably seen the yellow Energy Guide stickers on appliances — they usually assume $0.14/kWh, which no longer reflects what many Californians actually pay.
That means those guides underestimate costs in most parts of the state.
📍 San Diego as a Case Study
In San Diego, electricity pricing is among the highest in the country. During peak hours (4–9 PM), SDG&E rates often exceed $0.50/kWh — more than 3.5× the national average.
With that rate, using a standard clothes dryer (3kW) for just 1 hour can cost $1.50 or more.
For San Diego residents, shifting use to off-peak hours or investing in solar + storage can lead to substantial savings.
📌 Takeaways
- Always check your actual kWh rate, not just the Energy Guide label.
- Use real-time TOU data by region at mykwhnow.com/tools/california-rates.
- Consider the time of day and your location when calculating appliance costs.
- In high-cost areas like San Diego, efficiency and usage habits make a major impact on your bill.
Need help analyzing your electric bill? Try the Dashboard Tool to break down your usage by appliance and time.
