Electricity usage is measured in watts-hours (Wh), kilowatt-hours (kWh), joules (J), or mega-joules (MJ). Demand meters measure the temperature of a conductor to identify average and maximum demand.
Electricity companies bill customers for the electrical energy they use. A joule is ... of electrical energy is one kilowatt-hour, or 1 kWh. Domestic electricity meters, similar to those above ...
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