Hot Tub / Spa in Ontario — $1,111/yr to Run (30.9¢/kWh)
Your hot tub / spa in Ontario costs about $93/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
$3.70
12.0 kWh/day
Monthly Cost
$92.58
300 kWh/mo
Annual Cost
$1,111
3,600 kWh/yr
Lifetime (15yr)
$16,664
energy only
Monthly Cost Breakdown in Ontario
| Period | kWh | Ontario Cost | National Avg | Difference |
|---|---|---|---|---|
| Daily | 12.0 | $3.70 | $1.56 | +$2.14 |
| Weekly | 84.0 | $25.92 | $10.92 | +$15.00 |
| Monthly | 300.0 | $92.58 | $39.00 | +$53.58 |
| Quarterly | 900.0 | $277.74 | $117.00 | +$160.74 |
| Annual | 3600.0 | $1110.96 | $468.00 | +$642.96 |
Customize Your Hot Tub / Spa Cost
Adjust usage hours and electricity rate to calculate your exact cost in Ontario.
Daily
$3.70
Monthly
$92.58
Annual
$1,111
15-Year
$16,664
Energy Saving Tips for Hot Tub / Spa in Ontario
- ✓Ontario electricity rates are 137% above the national average — energy efficiency matters more here.
- ✓An ENERGY STAR Hot Tub / Spa in Ontario saves ~$167/year compared to standard models.
- ✓A smart Hot Tub / Spa with scheduling optimization can save ~$278/year at Ontario rates.
- ✓Use a quality insulated cover
- ✓Lower temp when not in use
- ✓Schedule heating during off-peak hours
ENERGY STAR Savings: Upgrading to an ENERGY STAR Hot Tub / Spa in Ontario saves approximately $167/year at local rates — $2,500 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
Hot Tub / Spa Cost in Other California Cities
| City | Rate | Annual Cost | vs Ontario |
|---|---|---|---|
| Ontario (current) | 30.9¢ | $1,111 | — |
| Los Angeles | 30.5¢ | $1,099 | $-12 |
| San Diego | 28.8¢ | $1,037 | $-74 |
| San Jose | 34.7¢ | $1,249 | +$138 |
| San Francisco | 26.5¢ | $952 | $-159 |
| Fresno | 29.9¢ | $1,076 | $-35 |
| Sacramento | 24.7¢ | $888 | $-223 |
| Long Beach | 33.5¢ | $1,205 | +$94 |
| Oakland | 27.9¢ | $1,004 | $-107 |
Hot Tub / Spa Energy Cost FAQ — Ontario, CA
Understanding Hot Tub / Spa 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 high-draw appliance like the Hot Tub / Spa (3,000W) at Ontario's rate of 30.9¢/kWh costs approximately $1,111 per year — $643 more than the national average of $468.
Electricity in Ontario is significantly more expensive than the national average — 137% higher. For a Hot Tub / Spa used 4 hours per day, this rate premium adds up to $643 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 Hot Tub / Spa can cut energy use by up to 15%, saving approximately $167 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 Hot Tub / Spa produces approximately 2.57 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 Hot Tub / Spa in Ontario, CA?
At Ontario's average electricity rate of 30.9¢/kWh, a Hot Tub / Spa costs approximately $1,111 per year to run. That's about $92.58 per month with typical usage of 4 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 Hot Tub / Spa use per year?
A Hot Tub / Spa uses approximately 3,000 watts and consumes about 3,600 kWh per year with typical usage of 4 hours/day for 300 days/year.
Is a Hot Tub / Spa expensive to run in Ontario?
Compared to the national average cost of $468/year, running a Hot Tub / Spa in Ontario costs $643 more per year due to higher local electricity rates.
How can I reduce my Hot Tub / Spa energy cost in Ontario?
To reduce Hot Tub / Spa costs in Ontario: Use a quality insulated cover. Lower temp when not in use. Upgrading to an ENERGY STAR model saves up to 15% on energy costs. Also check with Pacific Gas & Electric for local energy efficiency rebates and programs.