A power outage (also called a power cut, a power out, a power blackout, power failure or a blackout) is the loss of the electrical power network supply to an end user.[from wikipedia]

Electric power transmission is the bulk movement of electrical energy from a generating site, such as a power plant, to an electrical substation. The interconnected lines which facilitate this movement are known as a transmission network. This is distinct from the local wiring between high-voltage substations and customers, which is typically referred to as electric power distribution.[from wikipedia]

Power meters enable billing the customer

An industrial facility that generates electric power

Lamp and power sockets.