Window Air Conditioner in Ontario — $415/yr to Run (30.9¢/kWh)
Your window air conditioner in Ontario costs about $35/month at 30.9¢/kWh. See daily, monthly, and yearly costs, plus tips to cut your bill.
Ontario, CA Electricity Rate
30.9¢/kWh
Utility: Pacific Gas & Electric
+137% vs national avg
National avg: 13.0¢/kWh
Daily Cost
$3.46
11.2 kWh/day
Monthly Cost
$34.56
112 kWh/mo
Annual Cost
$415
1,344 kWh/yr
Lifetime (10yr)
$4,148
energy only
Monthly Cost Breakdown in Ontario
| Period | kWh | Ontario Cost | National Avg | Difference |
|---|---|---|---|---|
| Daily | 11.2 | $3.46 | $1.46 | +$2.00 |
| Weekly | 78.4 | $24.19 | $10.19 | +$14.00 |
| Monthly | 112.0 | $34.56 | $14.56 | +$20.00 |
| Quarterly | 336.0 | $103.69 | $43.68 | +$60.01 |
| Annual | 1344.0 | $414.76 | $174.72 | +$240.04 |
Customize Your Window Air Conditioner Cost
Adjust usage hours and electricity rate to calculate your exact cost in Ontario.
Daily
$3.46
Monthly
$34.56
Annual
$415
10-Year
$4,148
Energy Saving Tips for Window Air Conditioner in Ontario
- ✓Ontario electricity rates are 137% above the national average — energy efficiency matters more here.
- ✓An ENERGY STAR Window Air Conditioner in Ontario saves ~$41/year compared to standard models.
- ✓A smart Window Air Conditioner with scheduling optimization can save ~$62/year at Ontario rates.
- ✓Ontario's warm climate (avg 79°F) means higher cooling costs — consider ceiling fans to supplement.
- ✓Choose the right size for your room
- ✓Seal gaps around the unit
ENERGY STAR Savings: Upgrading to an ENERGY STAR Window Air Conditioner in Ontario saves approximately $41/year at local rates — $415 over the appliance lifetime.
Highest-Cost Appliances in Ontario, CA
See which appliances cost the most to run at Ontario's 30.9¢/kWh electricity rate.
Level 2 EV Charger (240V)
Transportation · 7,200W
$3,999/yr
$333.29/mo
Electric Furnace
HVAC · 10,000W
$2,777/yr
$231.45/mo
Electric Tankless Water Heater
Water Heating · 18,000W
$2,028/yr
$168.96/mo
EV Charger (Level 2)
Garage · 7,200W
$2,000/yr
$166.64/mo
Boiler (Electric)
HVAC · 6,000W
$1,666/yr
$138.87/mo
Electric Water Heater (Tank)
Water Heating · 4,500W
$1,521/yr
$126.72/mo
Water Heater (Tank Electric)
Water Heating · 4,500W
$1,521/yr
$126.72/mo
Heat Pump
HVAC · 2,400W
$1,185/yr
$98.75/mo
Window Air Conditioner Cost in Other California Cities
| City | Rate | Annual Cost | vs Ontario |
|---|---|---|---|
| Ontario (current) | 30.9¢ | $415 | — |
| Los Angeles | 30.5¢ | $410 | $-4 |
| San Diego | 28.8¢ | $387 | $-28 |
| San Jose | 34.7¢ | $466 | +$51 |
| San Francisco | 26.5¢ | $355 | $-59 |
| Fresno | 29.9¢ | $402 | $-13 |
| Sacramento | 24.7¢ | $332 | $-83 |
| Long Beach | 33.5¢ | $450 | +$35 |
| Oakland | 27.9¢ | $375 | $-40 |
Window Air Conditioner Energy Cost FAQ — Ontario, CA
Understanding Window Air Conditioner Energy Costs in Ontario, CA
Ontario is a mid-sized California city where residential electricity rates from Pacific Gas & Electric are shaped by regional energy supply and local demand patterns. Running a moderate-draw appliance like the Window Air Conditioner (1,400W) at Ontario's rate of 30.9¢/kWh costs approximately $415 per year — $240 more than the national average of $175.
Electricity in Ontario is significantly more expensive than the national average — 137% higher. For a Window Air Conditioner used 8 hours per day, this rate premium adds up to $240 in extra annual costs. Energy-efficient models and usage habits have an outsized impact in high-rate markets like this.
Ontario has a high cost of living (index: 146), 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. Upgrading to an ENERGY STAR Window Air Conditioner can cut energy use by up to 10%, saving approximately $41 per year at Ontario rates.
In Ontario's warm climate (avg 79°F), HVAC-related appliances tend to run more frequently, compounding energy costs. A Window Air Conditioner produces approximately 0.96 tons of CO2 annually at typical usage. Ontario residents can reduce this footprint by choosing an ENERGY STAR certified unit, optimizing usage patterns, or investing in solar — see our solar savings calculator for Ontario.
Compare All Energy Costs in Ontario
See energy costs for 178+ household appliances at Ontario's local electricity rate.
Frequently Asked Questions
How much does it cost to run a Window Air Conditioner in Ontario, CA?
At Ontario's average electricity rate of 30.9¢/kWh, a Window Air Conditioner costs approximately $415 per year to run. That's about $34.56 per month with typical usage of 8 hours per day.
What is the electricity rate in Ontario, CA?
The average residential electricity rate in Ontario, CA is 30.9¢/kWh, which is 137% above the national average of 13.0¢/kWh. The primary utility provider is Pacific Gas & Electric.
How much electricity does a Window Air Conditioner use per year?
A Window Air Conditioner uses approximately 1,400 watts and consumes about 1,344 kWh per year with typical usage of 8 hours/day for 120 days/year.
Is a Window Air Conditioner expensive to run in Ontario?
Compared to the national average cost of $175/year, running a Window Air Conditioner in Ontario costs $240 more per year due to higher local electricity rates.
How can I reduce my Window Air Conditioner energy cost in Ontario?
To reduce Window Air Conditioner costs in Ontario: Choose the right size for your room. Seal gaps around the unit. Upgrading to an ENERGY STAR model saves up to 10% on energy costs. Also check with Pacific Gas & Electric for local energy efficiency rebates and programs.