gigawatt - definition and synonyms

noun [countable] 

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/ˈɡɪɡəˌwɒt/
singulargigawatt
pluralgigawatts
  1. a unit of power equal to one billion watts or 1000 megawatts. The written abbreviation is GW

    The project will be able to generate more than 2.5 gigawatt hours of electricity a year with zero emissions.