Appliance,Example Wattage (W),Daily Operating Time (Hours),Annual Energy Use (kWh),Example Electricity Rate ($/kWh),Illustrative Annual Cost ($),Assumption Notes,Source,Last Updated
Refrigerator (Modern),400,8.0,1168.0,0.15,175.20,"Illustrative rated wattage. Assumes 33% duty cycle (8 hours active run-time per day). Actual cycling varies. Replace with appliance label data. For the examples, DataWisdom uses an illustrative electricity rate of $0.15 per kWh.",EIA Average / Manufacturer Specs,2026-08-20
Electric Oven,2500,1.0,912.5,0.15,136.88,"Illustrative rated wattage. Assumes stated daily operating time. Replace with appliance label data. For the examples, DataWisdom uses an illustrative electricity rate of $0.15 per kWh.",U.S. Department of Energy estimates,2026-08-20
Central Air Conditioner (3 Ton),3500,4.0,5110.0,0.15,766.50,"Illustrative rated wattage. Assumes stated daily operating time during cooling months. Replace with appliance label data. For the examples, DataWisdom uses an illustrative electricity rate of $0.15 per kWh.",ENERGY STAR guidelines,2026-08-20
Space Heater,1500,4.0,2190.0,0.15,328.50,"Illustrative rated wattage. Assumes stated daily operating time. Replace with appliance label data. For the examples, DataWisdom uses an illustrative electricity rate of $0.15 per kWh.",General industry specs,2026-08-20
Clothes Dryer (Electric),3000,0.5,547.5,0.15,82.13,"Illustrative rated wattage. Assumes stated daily operating time. Replace with appliance label data. For the examples, DataWisdom uses an illustrative electricity rate of $0.15 per kWh.",ENERGY STAR guidelines,2026-08-20
LED Light Bulb,10,5.0,18.25,0.15,2.74,"Illustrative rated wattage. Assumes stated daily operating time. Replace with appliance label data. For the examples, DataWisdom uses an illustrative electricity rate of $0.15 per kWh.",U.S. Department of Energy estimates,2026-08-20