Tankless Water Heater (Electric) in Renton — $287/yr to Run (8.7¢/kWh)
Your tankless water heater (electric) in Renton costs about $24/month at 8.7¢/kWh. See daily, monthly, and yearly costs, plus tips to cut your bill.
Renton, WA Electricity Rate
8.7¢/kWh
Utility: Puget Sound Energy
-33% vs national avg
National avg: 13.0¢/kWh
Daily Cost
$0.79
9.0 kWh/day
Monthly Cost
$23.93
274 kWh/mo
Annual Cost
$287
3,285 kWh/yr
Lifetime (20yr)
$5,742
energy only
Monthly Cost Breakdown in Renton
| Period | kWh | Renton Cost | National Avg | Difference |
|---|---|---|---|---|
| Daily | 9.0 | $0.79 | $1.17 | $-0.38 |
| Weekly | 63.0 | $5.51 | $8.19 | $-2.68 |
| Monthly | 273.8 | $23.93 | $35.59 | $-11.66 |
| Quarterly | 821.3 | $71.78 | $106.76 | $-34.99 |
| Annual | 3285.0 | $287.11 | $427.05 | $-139.94 |
Customize Your Tankless Water Heater (Electric) Cost
Adjust usage hours and electricity rate to calculate your exact cost in Renton.
Daily
$0.79
Monthly
$23.93
Annual
$287
20-Year
$5,742
Energy Saving Tips for Tankless Water Heater (Electric) in Renton
- ✓Renton has below-average electricity rates, but saving energy still reduces your carbon footprint.
- ✓An ENERGY STAR Tankless Water Heater (Electric) in Renton saves ~$57/year compared to standard models.
- ✓A smart Tankless Water Heater (Electric) with scheduling optimization can save ~$43/year at Renton 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 Renton saves approximately $57/year at local rates — $1,148 over the appliance lifetime.
Highest-Cost Appliances in Renton, WA
See which appliances cost the most to run at Renton's 8.7¢/kWh electricity rate.
Level 2 EV Charger (240V)
Transportation · 7,200W
$1,133/yr
$94.39/mo
Electric Furnace
HVAC · 10,000W
$787/yr
$65.55/mo
Electric Tankless Water Heater
Water Heating · 18,000W
$574/yr
$47.85/mo
EV Charger (Level 2)
Garage · 7,200W
$566/yr
$47.20/mo
Boiler (Electric)
HVAC · 6,000W
$472/yr
$39.33/mo
Electric Water Heater (Tank)
Water Heating · 4,500W
$431/yr
$35.89/mo
Water Heater (Tank Electric)
Water Heating · 4,500W
$431/yr
$35.89/mo
Heat Pump
HVAC · 2,400W
$336/yr
$27.97/mo
Tankless Water Heater (Electric) Cost in Other Washington Cities
Tankless Water Heater (Electric) Energy Cost FAQ — Renton, WA
Understanding Tankless Water Heater (Electric) Energy Costs in Renton, WA
Renton is a mid-sized Washington city where residential electricity rates from Puget Sound Energy are shaped by regional energy supply and local demand patterns. Running a high-draw appliance like the Tankless Water Heater (Electric) (18,000W) at Renton's rate of 8.7¢/kWh costs approximately $287 per year — $140 less than the national average of $427.
Renton residents enjoy electricity rates 33% below the national average, saving $140 per year on Tankless Water Heater (Electric) costs alone. Over 20 years, that's $2,799 in savings — though energy efficiency is still worth pursuing to reduce both costs and carbon output.
Renton has a high cost of living (index: 122.5), 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 $57 per year at Renton rates.
Renton's moderate climate (avg 47°F) helps keep seasonal energy cost swings manageable for most appliances. A Tankless Water Heater (Electric) produces approximately 2.35 tons of CO2 annually at typical usage. Renton 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 Renton.
Compare All Energy Costs in Renton
See energy costs for 168+ household appliances at Renton's local electricity rate.