Cost to Run Tankless Water Heater in Arizona (2026)
At Arizona's average rate of 14.78¢/kWh, running a Tankless Water Heater costs $31.04/month or $377.63/year. That's 14.2% less than the national average of $36.16/month.
Monthly Cost
$31.04
in Arizona
Yearly Cost
$377.63
in Arizona
State Rate
14.78¢
per kWh
National Rank
#22
of 50 states
Tankless Water Heater Energy Usage
| Wattage | 7,000 watts |
| Typical Daily Use | 1 hours/day |
| Daily kWh | 7.00 kWh |
| Monthly kWh | 210.0 kWh |
| Category | Heating |
Arizona vs National Average: Tankless Water Heater Costs
| Metric | Arizona | National Avg | Difference |
|---|---|---|---|
| Electricity Rate | 14.78¢/kWh | 17.22¢/kWh | -2.44¢ |
| Monthly Tankless Water Heater Cost | $31.04 | $36.16 | $-5.12 |
| Yearly Tankless Water Heater Cost | $377.63 | $439.97 | $-62.34 |
Tankless Water Heater Cost in Neighboring States
How does running a Tankless Water Heater in Arizona compare to nearby states?
| State | Rate | Monthly | Yearly | vs AZ |
|---|---|---|---|---|
| Arizona (this state) | 14.78¢ | $31.04 | $377.63 | - |
| California | 31.22¢ | $65.56 | $797.67 | +$34.52 |
| Colorado | 15.56¢ | $32.68 | $397.56 | +$1.64 |
| Nevada | 14.92¢ | $31.33 | $381.21 | +$0.29 |
| New Mexico | 15.34¢ | $32.21 | $391.94 | +$1.18 |
| Utah | 11.41¢ | $23.96 | $291.53 | $-7.08 |
Tankless Water Heater Cost: All 50 States Ranked
Arizona ranks #22 out of 50 for Tankless Water Heater running costs (1 = cheapest).
| # | State | Rate | Monthly | Yearly |
|---|---|---|---|---|
| 1 | Idaho | 11.15¢ | $23.42 | $284.88 |
| 2 | Washington | 11.26¢ | $23.65 | $287.69 |
| 3 | Utah | 11.41¢ | $23.96 | $291.53 |
| 4 | Wyoming | 11.72¢ | $24.61 | $299.45 |
| 5 | North Dakota | 12.43¢ | $26.10 | $317.59 |
| 6 | Louisiana | 12.52¢ | $26.29 | $319.89 |
| 7 | Oregon | 12.55¢ | $26.36 | $320.65 |
| 8 | Montana | 12.81¢ | $26.90 | $327.30 |
| 9 | Oklahoma | 12.82¢ | $26.92 | $327.55 |
| 10 | Tennessee | 12.91¢ | $27.11 | $329.85 |
| 11 | Arkansas | 13.04¢ | $27.38 | $333.17 |
| 12 | Nebraska | 13.08¢ | $27.47 | $334.19 |
| 13 | Kentucky | 13.19¢ | $27.70 | $337.00 |
| 14 | West Virginia | 13.44¢ | $28.22 | $343.39 |
| 15 | Mississippi | 13.54¢ | $28.43 | $345.95 |
| 16 | South Dakota | 13.74¢ | $28.85 | $351.06 |
| 17 | Missouri | 13.78¢ | $28.94 | $352.08 |
| 18 | North Carolina | 14.09¢ | $29.59 | $360.00 |
| 19 | Georgia | 14.27¢ | $29.97 | $364.60 |
| 20 | South Carolina | 14.43¢ | $30.30 | $368.69 |
| 21 | Virginia | 14.64¢ | $30.74 | $374.05 |
| 22 | Arizona | 14.78¢ | $31.04 | $377.63 |
| 23 | Alabama | 14.87¢ | $31.23 | $379.93 |
| 24 | Nevada | 14.92¢ | $31.33 | $381.21 |
| 25 | Delaware | 14.94¢ | $31.37 | $381.72 |
| 26 | Texas | 15.06¢ | $31.63 | $384.78 |
| 27 | Iowa | 15.14¢ | $31.79 | $386.83 |
| 28 | Ohio | 15.21¢ | $31.94 | $388.62 |
| 29 | Kansas | 15.28¢ | $32.09 | $390.40 |
| 30 | New Mexico | 15.34¢ | $32.21 | $391.94 |
| 31 | Indiana | 15.42¢ | $32.38 | $393.98 |
| 32 | Colorado | 15.56¢ | $32.68 | $397.56 |
| 33 | Minnesota | 15.63¢ | $32.82 | $399.35 |
| 34 | Florida | 16.22¢ | $34.06 | $414.42 |
| 35 | Illinois | 16.27¢ | $34.17 | $415.70 |
| 36 | Maryland | 16.57¢ | $34.80 | $423.36 |
| 37 | Wisconsin | 17.38¢ | $36.50 | $444.06 |
| 38 | Pennsylvania | 18.36¢ | $38.56 | $469.10 |
| 39 | New Jersey | 18.48¢ | $38.81 | $472.16 |
| 40 | Michigan | 19.34¢ | $40.61 | $494.14 |
| 41 | Vermont | 21.43¢ | $45.00 | $547.54 |
| 42 | Alaska | 24.21¢ | $50.84 | $618.57 |
| 43 | New York | 24.33¢ | $51.09 | $621.63 |
| 44 | New Hampshire | 25.78¢ | $54.14 | $658.68 |
| 45 | Maine | 26.37¢ | $55.38 | $673.75 |
| 46 | Rhode Island | 28.08¢ | $58.97 | $717.44 |
| 47 | Massachusetts | 28.58¢ | $60.02 | $730.22 |
| 48 | Connecticut | 29.98¢ | $62.96 | $765.99 |
| 49 | California | 31.22¢ | $65.56 | $797.67 |
| 50 | Hawaii | 43.18¢ | $90.68 | $1,103.25 |
Save Money on Tankless Water Heater in Arizona
- Lower your thermostat by 7-10F for 8 hours a day to save up to 10% on Tankless Water Heater heating costs.
- Use a smart thermostat to optimize Tankless Water Heater usage based on your schedule in Arizona.
- Improve home insulation in attics, walls, and floors to retain heat better.
- Use zone heating to warm only occupied rooms instead of your entire home.
- Look for Energy Star certified Tankless Water Heater models that use 10-50% less energy than standard models.
- Consider installing solar panels in Arizona to offset your Tankless Water Heater electricity costs.
- Check if your Arizona utility offers time-of-use rates and run your Tankless Water Heater during off-peak hours.
- Ensure proper maintenance of your Tankless Water Heater to keep it running at peak efficiency.
Related Pages
More about Arizona
More about Tankless Water Heater
Frequently Asked Questions
How much does it cost to run a Tankless Water Heater in Arizona?
Running a Tankless Water Heater in Arizona costs approximately $31.04 per month or $377.63 per year, based on the state's average residential rate of 14.78¢/kWh and typical usage of 1 hours per day.
Is running a Tankless Water Heater expensive in Arizona compared to other states?
Arizona ranks #22 out of 50 states for Tankless Water Heater running costs (1 = cheapest). It's 14.2% cheaper than the national average. The cheapest state is Idaho at $23.42/month, and the most expensive is Hawaii at $90.68/month.
How much electricity does a Tankless Water Heater use per month?
A typical Tankless Water Heater uses 7000 watts and runs about 1 hours per day, consuming approximately 7.00 kWh daily or 210.0 kWh per month.
How can I reduce Tankless Water Heater electricity costs in Arizona?
You can reduce costs by using an Energy Star rated Tankless Water Heater, running it during off-peak hours if your utility offers time-of-use rates, ensuring proper maintenance, and considering solar panels to offset electricity costs in Arizona.
What is the electricity rate in Arizona?
The average residential electricity rate in Arizona is 14.78¢ per kWh. The primary energy source is Natural Gas, with 16.0% from renewable sources.
Was this data helpful?
Data verified March 2026 · Source: U.S. Energy Information Administration (EIA)