Which unit measures metered energy?

The measurement of metered energy is expressed in kilowatt-hours (kWh). This unit reflects the amount of energy consumed over time, specifically the electricity used at a rate of one kilowatt over an hour. When you see a utility bill, the usage is typically reported in kilowatt-hours, which indicates both the power consumption and the duration of that consumption.

In contrast, kilowatts is a measure of power, representing the rate of energy transfer at a specific instant, not the total amount used over time. Kvar hours measure reactive power energy, which is relevant in alternating current systems but does not account for the real energy consumed. Volts measure electrical potential or voltage, not energy usage. Therefore, kilowatt-hours is the correct choice for measuring metered energy since it captures the total energy consumed in a time-sensitive manner.