- Electric Power just discussed is an
instantaneousparameter, measured in watts or kilowatts for most customers.

- If you look at your electricity meter the power consumption is indicated precisely by the
instantaneous speedof rotation of the silvery disc visible through the glass front of the meter.*

- Over a given time period, the total energy consumed is the
total number of turnsthat the silvery disc has made. This is measured cumulatively by the meter's numerical dials and counters which are driven, via gears, by the spinning disc.*

- Example 1: A 100-watt light globe has a power consumption of 100 watts. After running for 24 hours it will have consumed 0.1 (kW) x 24 (hours) = 2.4 kilowatt-hours of electricity.

- Example 2: A 100-watt light globe has a power consumption of 112 watts if supplied with 254.4 volts. After running for 24 hours it will have consumed 0.112 (kW) x 24 (hours) = 2.69 kilowatt-hours of electricity.

*both of these are affected by voltage.

How Voltage affects Customers' Electricity Bills