To calculate the Energy Consumption (kWh):
\[ \text{kWh} = \frac{\text{Watts}}{1000} \times \text{Hours} \]
Where:
A kilowatt-hour (kWh) is a unit of measure of energy that is equal to 3.6 megajoules. More simply, the kilowatt-hour is a measure of energy consumed or produced by one kilowatt sustained over one hour. The reason this unit has come to the forefront of most electric applications is that it is used by electric utilities for billing. A watt is a measure of power, and hours are a measure of time. Multiply power by time yields energy, and that is why kWh is considered a derived unit of energy. It is not officially recognized by the SI unit system, although the derived unit of joules is.
Let's assume the following values:
Using the formula:
\[ \text{kWh} = \frac{1500}{1000} \times 3 = 1.5 \times 3 = 4.5 \text{ kWh} \]
The Energy Consumption is 4.5 kWh.
