Hey there this is Laura Avila Barraza.
The basic unit of measurement for electricity is watts. A thousand watts is called a kilowatt. If you use a thousand watts of power in an hour, you have used one kilowatt hour (kWh). Your electricity company charges you per kWh.
The standard electricity meter is a clock-like device powered by electricity running through it. As the house draws power lines, a series of small gears move around the counter. The number of turns is recorded using the dials that can be seen on the front of the meter. The speed of the turns depends on the amount of current consumed: the greater the power consumed at any time, the greater the speed of rotation of the gears.