Water Heater (Tank Electric) Energy Cost Calculator
Conventional electric water heater with insulated storage tank for domestic hot water.
Power Draw
4,500W
watts
Annual kWh
4,928
avg usage
Annual Cost
$641
avg national
CO₂/Year
3.5 tons
carbon impact
Water Heater (Tank Electric) Cost Calculator
Customize usage and your state's electricity rate for accurate cost estimates.
Daily Cost
$1.76
Monthly Cost
$53.38
Annual Cost
$641
Lifetime Cost
$7,687
Energy Saving Opportunities
Save up to % vs standard models
~$NaN/year savings
Smart scheduling saves 5% more energy
~$32/year savings
Energy Saving Tips
- ✓Lower temperature to 120F
- ✓Insulate tank with blanket
- ✓Drain sediment twice yearly
Compare Alternatives
| Appliance | Watts | Annual kWh | Annual Cost |
|---|---|---|---|
| Water Heater (Tank Electric) (current) | 4,500W | 4,928 | $641 |
| Heat Pump Water Heater | 500W | 1,095 | $142 |
| Tankless Water Heater (Electric) | 18,000W | 3,285 | $427 |
Water Heater (Tank Electric) Cost Summary
Water Heater (Tank Electric) Energy FAQ
Water Heater (Tank Electric) Running Cost by City (top 100)
Electricity rates vary by city, so the cost to run a water heater (tank electric) does too. See your local cost:
Methodology & Energy Data Sources — Water Heater (Tank Electric)
How we calculate Water Heater (Tank Electric) energy costs: Our calculations use EIA (US Energy Information Administration) residential electricity price data, cross-referenced with ENERGY STAR appliance efficiency standards and DOE Appliance and Equipment Standards. Wattage values reflect nameplate ratings from manufacturer specifications, normalized by the ENERGY STAR Testing & Certification Program.
- Wattage (4500W): Nameplate wattage from ENERGY STAR certified product database. Actual consumption may vary ±15% based on usage patterns and age of appliance.
- Annual kWh (4928 kWh): Calculated as (Wattage × Avg Hours/Day × Avg Days/Year) ÷ 1,000. Usage hours based on RECS (Residential Energy Consumption Survey) typical usage patterns for Water Heating equipment.
- Annual cost ($641): Calculated using EIA Form EIA-861M national residential average electricity rate. State-level rates sourced from EIA Electric Power Monthly (Table 5.6.A).
- Lifetime energy cost: Projects 4928 kWh/year × 12-year lifespan, adjusted for 2.5% annual electricity price escalation per EIA Annual Energy Outlook baseline scenario.
- Carbon footprint (3.5 lbs CO₂/year): Uses EPA eGRID national average emission factor (0.386 kg CO₂e/kWh for 2023). Regional factors vary significantly — see EPA eGRID subregion data for local estimates.
- EIA Electric Power Monthly — residential electricity rates
- EIA Residential Energy Consumption Survey (RECS)
- ENERGY STAR Certified Products Database
- EPA eGRID — electricity emission factors
- DOE Appliance and Equipment Standards Program
Disclaimer: Energy cost estimates are based on national and state averages. Actual costs depend on your utility's rate structure, time-of-use pricing, demand charges, and actual usage patterns. Contact your utility for exact rates and consider a home energy audit for personalized recommendations.
Reviewed by Brazora Monk · Last updated 2026 · EIA data current as of latest Electric Power Monthly release
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