ECC
$0.1834U.S. residential average · approximate · editable

AUDIT · Whole home

Find the appliances driving your bill.

Build an editable inventory and rank annual energy use and operating cost on one rate.

For a tariff calculation, include both supply and delivery charges per kWh. A state average includes revenue from fixed charges and taxes; do not add these again when using an average.Use your delivered electricity price, or keep the approximate average.
Search appliancesSearch by a common appliance name, then add the closest profile. Its wattage and equivalent runtime remain editable after it is added.

Search 43 editable planning profiles; cycling is converted to equivalent full-load hours.

Your modeled appliances
Central air conditioner · 3500 W, 3.6 hr/day
Look for watts (W) on the appliance nameplate, EnergyGuide label, product manual, or manufacturer specification. A plug-in power meter gives a measured value.
Estimate the hours this appliance actively runs on a typical day. A timer, smart plug, or usage log can improve this estimate.
Electric water heater · 4500 W, 3 hr/day
Look for watts (W) on the appliance nameplate, EnergyGuide label, product manual, or manufacturer specification. A plug-in power meter gives a measured value.
Estimate the hours this appliance actively runs on a typical day. A timer, smart plug, or usage log can improve this estimate.
Refrigerator · 150 W, 8 hr/day
Look for watts (W) on the appliance nameplate, EnergyGuide label, product manual, or manufacturer specification. A plug-in power meter gives a measured value.
Estimate the hours this appliance actively runs on a typical day. A timer, smart plug, or usage log can improve this estimate.
Clothes dryer · 3000 W, 0.85 hr/day
Look for watts (W) on the appliance nameplate, EnergyGuide label, product manual, or manufacturer specification. A plug-in power meter gives a measured value.
Estimate the hours this appliance actively runs on a typical day. A timer, smart plug, or usage log can improve this estimate.
Checking the ECC API…

Modeled annual cost

$1,998.19/year

Annual energy

10895kWh/year

Average month

$166.52

4 appliances total 10895 kWh per year; Electric water heater ranks first by energy.

Energy cost rankingHighest first
1Electric water heater
$903.70 · 45.2%
2Central air conditioner
$843.46 · 42.2%
3Clothes dryer
$170.70 · 8.5%
4Refrigerator
$80.33 · 4.0%

Source: Manual rate · June 2026 monthly average · User-provided calculation input · selected rate source: Government aggregate · approximate

Daily energy is estimated from rated power, runtime, and appliance quantity; annual energy uses the supplied days per year. · Costs apply the supplied manual flat rate uniformly to daily, average-monthly, and annual energy. · Analysis year 2026 labels the scenario; no calendar or rate escalation adjustment is applied. · Whole-home totals and shares use unrounded appliance results. · Central air conditioner: 42.2% of modeled cost · Electric water heater: 45.2% of modeled cost · Refrigerator: 4.0% of modeled cost · Clothes dryer: 8.5% of modeled cost