Tankless Water Heater (Electric) in Modesto — $984/yr to Run (29.9¢/kWh)
Your tankless water heater (electric) in Modesto costs about $82/month at 29.9¢/kWh. See daily, monthly, and yearly costs, plus tips to cut your bill.
Modesto, CA Electricity Rate
29.9¢/kWh
Utility: Modesto Irrigation District
+130% vs national avg
National avg: 13.0¢/kWh
Daily Cost
$2.70
9.0 kWh/day
Monthly Cost
$81.99
274 kWh/mo
Annual Cost
$984
3,285 kWh/yr
Lifetime (20yr)
$19,677
energy only
Monthly Cost Breakdown in Modesto
| Period | kWh | Modesto Cost | National Avg | Difference |
|---|---|---|---|---|
| Daily | 9.0 | $2.70 | $1.17 | +$1.53 |
| Weekly | 63.0 | $18.87 | $8.19 | +$10.68 |
| Monthly | 273.8 | $81.99 | $35.59 | +$46.40 |
| Quarterly | 821.3 | $245.96 | $106.76 | +$139.20 |
| Annual | 3285.0 | $983.86 | $427.05 | +$556.81 |
Customize Your Tankless Water Heater (Electric) Cost
Adjust usage hours and electricity rate to calculate your exact cost in Modesto.
Daily
$2.70
Monthly
$81.99
Annual
$984
20-Year
$19,677
Energy Saving Tips for Tankless Water Heater (Electric) in Modesto
- ✓Modesto electricity rates are 130% above the national average — energy efficiency matters more here.
- ✓An ENERGY STAR Tankless Water Heater (Electric) in Modesto saves ~$197/year compared to standard models.
- ✓A smart Tankless Water Heater (Electric) with scheduling optimization can save ~$148/year at Modesto rates.
- ✓Provides hot water on demand with no standby loss
- ✓Flush annually to remove scale
- ✓Requires dedicated electrical circuit
ENERGY STAR Savings: Upgrading to an ENERGY STAR Tankless Water Heater (Electric) in Modesto saves approximately $197/year at local rates — $3,935 over the appliance lifetime.
Highest-Cost Appliances in Modesto, CA
See which appliances cost the most to run at Modesto's 29.9¢/kWh electricity rate.
Level 2 EV Charger (240V)
Transportation · 7,200W
$3,882/yr
$323.46/mo
Electric Furnace
HVAC · 10,000W
$2,696/yr
$224.63/mo
Electric Tankless Water Heater
Water Heating · 18,000W
$1,968/yr
$163.98/mo
EV Charger (Level 2)
Garage · 7,200W
$1,941/yr
$161.73/mo
Boiler (Electric)
HVAC · 6,000W
$1,617/yr
$134.78/mo
Electric Water Heater (Tank)
Water Heating · 4,500W
$1,476/yr
$122.98/mo
Water Heater (Tank Electric)
Water Heating · 4,500W
$1,476/yr
$122.98/mo
Heat Pump
HVAC · 2,400W
$1,150/yr
$95.84/mo
Tankless Water Heater (Electric) Cost in Other California Cities
| City | Rate | Annual Cost | vs Modesto |
|---|---|---|---|
| Modesto (current) | 29.9¢ | $984 | — |
| Los Angeles | 30.5¢ | $1,003 | +$19 |
| San Diego | 28.8¢ | $946 | $-38 |
| San Jose | 34.7¢ | $1,140 | +$156 |
| San Francisco | 26.5¢ | $869 | $-115 |
| Fresno | 29.9¢ | $982 | $-2 |
| Sacramento | 24.7¢ | $810 | $-173 |
| Long Beach | 33.5¢ | $1,099 | +$116 |
| Oakland | 27.9¢ | $917 | $-67 |
Tankless Water Heater (Electric) Energy Cost FAQ — Modesto, CA
Understanding Tankless Water Heater (Electric) Energy Costs in Modesto, CA
Modesto is a mid-sized California city where residential electricity rates from Modesto Irrigation District are shaped by regional energy supply and local demand patterns. Running a high-draw appliance like the Tankless Water Heater (Electric) (18,000W) at Modesto's rate of 29.9¢/kWh costs approximately $984 per year — $557 more than the national average of $427.
Electricity in Modesto is significantly more expensive than the national average — 130% higher. For a Tankless Water Heater (Electric) used 0.5 hours per day, this rate premium adds up to $557 in extra annual costs. Energy-efficient models and usage habits have an outsized impact in high-rate markets like this.
Modesto has a high cost of living (index: 150), 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 Tankless Water Heater (Electric) can cut energy use by up to 20%, saving approximately $197 per year at Modesto rates.
In Modesto's warm climate (avg 72.3°F), HVAC-related appliances tend to run more frequently, compounding energy costs. A Tankless Water Heater (Electric) produces approximately 2.35 tons of CO2 annually at typical usage. Modesto 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 Modesto.
Compare All Energy Costs in Modesto
See energy costs for 178+ household appliances at Modesto's local electricity rate.
Frequently Asked Questions
How much does it cost to run a Tankless Water Heater (Electric) in Modesto, CA?
At Modesto's average electricity rate of 29.9¢/kWh, a Tankless Water Heater (Electric) costs approximately $984 per year to run. That's about $81.99 per month with typical usage of 0.5 hours per day.
What is the electricity rate in Modesto, CA?
The average residential electricity rate in Modesto, CA is 29.9¢/kWh, which is 130% above the national average of 13.0¢/kWh. The primary utility provider is Modesto Irrigation District.
How much electricity does a Tankless Water Heater (Electric) use per year?
A Tankless Water Heater (Electric) uses approximately 18,000 watts and consumes about 3,285 kWh per year with typical usage of 0.5 hours/day for 365 days/year.
Is a Tankless Water Heater (Electric) expensive to run in Modesto?
Compared to the national average cost of $427/year, running a Tankless Water Heater (Electric) in Modesto costs $557 more per year due to higher local electricity rates.
How can I reduce my Tankless Water Heater (Electric) energy cost in Modesto?
To reduce Tankless Water Heater (Electric) costs in Modesto: Provides hot water on demand with no standby loss. Flush annually to remove scale. Upgrading to an ENERGY STAR model saves up to 20% on energy costs. Also check with Modesto Irrigation District for local energy efficiency rebates and programs.