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A terawatt (TW) is a unit of power equal to one trillion watts. The watt is the standard unit of power, defined as one joule per second. The prefix "tera-" signifies a factor of 1012, or one trillion. Therefore, a terawatt represents a massive amount of power, with one terawatt equaling 1,000,000,000,000 watts. This unit is used to measure very large quantities of energy, such as the power output of entire countries or global energy consumption.1234

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