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Glossary of Plasma Physics and Fusion Energy Research

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  Term: Capacity Factor
  Definition: (Also known as plant factor, load factor). This is the ratio of the average power output from an electric power plant to the plant's rated capacity. A capacity factor is ideally unity, but invariably less. Capacity factors vary widely between types of electric plants (e.g., nuclear, solar, coal, etc.), and can even vary widely for a single type of power plant.


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