Formule of Watt-hour meter?

There are a couple of kinds of watt-hour meters: one is an electromechanical type (the one with the spinning wheel), and the other is a solid-state type. The solid-state types generally use a current...

By not using any electricity.

It's unfortunate that both of these units include the same word "watt". That gives the impression that one can be converted into the other. These two units are used for measuring different...

Reduce the amount of power that you are using in the house. Eg. shut off lights in rooms that you are not using. Turn your thermostat down.

A kilowatt hour is 1000 watt hours. A watt hour is the amount of energy consumed, over a period of one hour, at the rate of one watt. The rate of consumption of energy being 'power'.