Electric Tankless Water Heater in Houston — $825/yr to Run (12.6¢/kWh)
Your electric tankless water heater in Houston costs about $69/month at 12.6¢/kWh. See daily, monthly, and yearly costs, plus tips to cut your bill.
Houston, TX Electricity Rate
12.6¢/kWh
Utility: CenterPoint Energy
-3% vs national avg
National avg: 13.0¢/kWh
Daily Cost
$2.26
18.0 kWh/day
Monthly Cost
$68.77
548 kWh/mo
Annual Cost
$825
6,570 kWh/yr
Lifetime (20yr)
$16,504
energy only
Monthly Cost Breakdown in Houston
| Period | kWh | Houston Cost | National Avg | Difference |
|---|---|---|---|---|
| Daily | 18.0 | $2.26 | $2.34 | $-0.08 |
| Weekly | 126.0 | $15.83 | $16.38 | $-0.55 |
| Monthly | 547.5 | $68.77 | $71.17 | $-2.41 |
| Quarterly | 1642.5 | $206.30 | $213.53 | $-7.23 |
| Annual | 6570.0 | $825.19 | $854.10 | $-28.91 |
Customize Your Electric Tankless Water Heater Cost
Adjust usage hours and electricity rate to calculate your exact cost in Houston.
Daily
$2.26
Monthly
$68.77
Annual
$825
20-Year
$16,504
Energy Saving Tips for Electric Tankless Water Heater in Houston
- ✓Houston has below-average electricity rates, but saving energy still reduces your carbon footprint.
- ✓An ENERGY STAR Electric Tankless Water Heater in Houston saves ~$198/year compared to standard models.
- ✓A smart Electric Tankless Water Heater with scheduling optimization can save ~$124/year at Houston rates.
- ✓Install point-of-use units for remote fixtures
- ✓Size properly for peak demand
- ✓Consider electrical upgrade
ENERGY STAR Savings: Upgrading to an ENERGY STAR Electric Tankless Water Heater in Houston saves approximately $198/year at local rates — $3,961 over the appliance lifetime.
Highest-Cost Appliances in Houston, TX
See which appliances cost the most to run at Houston's 12.6¢/kWh electricity rate.
Level 2 EV Charger (240V)
Transportation · 7,200W
$1,628/yr
$135.65/mo
Electric Furnace
HVAC · 10,000W
$1,130/yr
$94.20/mo
EV Charger (Level 2)
Garage · 7,200W
$814/yr
$67.82/mo
Boiler (Electric)
HVAC · 6,000W
$678/yr
$56.52/mo
Electric Water Heater (Tank)
Water Heating · 4,500W
$619/yr
$51.57/mo
Water Heater (Tank Electric)
Water Heating · 4,500W
$619/yr
$51.57/mo
Heat Pump
HVAC · 2,400W
$482/yr
$40.19/mo
Hot Tub / Spa
Pool & Spa · 3,000W
$452/yr
$37.68/mo
Electric Tankless Water Heater Cost in Other Texas Cities
| City | Rate | Annual Cost | vs Houston |
|---|---|---|---|
| Houston (current) | 12.6¢ | $825 | — |
| San Antonio | 13.5¢ | $887 | +$62 |
| Dallas | 14.0¢ | $919 | +$94 |
| Austin | 14.3¢ | $941 | +$116 |
| Fort Worth | 14.3¢ | $938 | +$113 |
| El Paso | 14.2¢ | $934 | +$109 |
| Arlington | 12.4¢ | $817 | $-9 |
| Corpus Christi | 15.0¢ | $987 | +$162 |
| Plano | 12.0¢ | $789 | $-36 |
Electric Tankless Water Heater Energy Cost FAQ — Houston, TX
Understanding Electric Tankless Water Heater Energy Costs in Houston, TX
In a major metro like Houston, electricity demand is high and rates reflect the cost of maintaining infrastructure for 2.3 million residents. Running a high-draw appliance like the Electric Tankless Water Heater (18,000W) at Houston's rate of 12.6¢/kWh costs approximately $825 per year — $29 less than the national average of $854.
Rates in Houston are close to the national average, so the Electric Tankless Water Heater's annual cost of $825 is broadly representative of what most US households pay. Over the 20-year expected lifespan, total energy cost reaches $16,504.
Houston's cost of living index of 93 is below the national average, and electricity costs reflect that affordability. The Electric Tankless Water Heater adds $68.77/month to a typical bill of $129. Upgrading to an ENERGY STAR Electric Tankless Water Heater can cut energy use by up to 24%, saving approximately $198 per year at Houston rates.
Houston's moderate climate (avg 67.7°F) helps keep seasonal energy cost swings manageable for most appliances. A Electric Tankless Water Heater produces approximately 2.1 tons of CO2 annually at typical usage. Houston 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 Houston.
Compare All Energy Costs in Houston
See energy costs for 168+ household appliances at Houston's local electricity rate.