What is the energy consumption of a refrigerator with a wattage rating of 700 Watts when it is operated for 24 hours a day?
To solve, use the following formula:
Where:Energy Consumption = Watt Hours (Wh) or KiloWatt Hours (kWh)
Power Consumption = Watts (W) or kW (KiloWatts)
Number of Hours Operated = Hours (h) For the example above:
Energy Consumption = 700 W x 24 h
Energy Consumption = 16800 W h
To convert from Wh to kWh, remember that 1kWh = 1000 Wh
To solve, set up as a ratio and use linear algebra to solve for ?.
Use the following link to generate a random practice problem [1].