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A power outage is a short- or long-term state of electric power loss in a given area or section of a power grid. It could affect a single house, building or an entire city, depending on the extent of the damage or cause of the outage.
A power outage is also known as power failure, power blackout or simply as blackout.
Power failures in an electric network can be caused by different factors, but the most common are often faults in the power lines and in the distribution stations themselves. Only very rarely are the power plants themselves at fault since these systems are built to withstand minor disasters and have various backup facilities that kick in when the main system goes offline for some reason.
Smaller power distribution facilities have fewer (or no) backup systems because they are cheaper and simpler to repair. However, the number one cause of power outages is the power lines themselves, since they are the most vulnerable and least protected elements in a power grid, especially in areas where it is not feasible to hide them underground, such as in between large stretches of uninhabited land or rural areas without large sewer systems.
Types of power outage: