gigawatt-hour

noun2

1. •
   A unit of energy equal to that provided by one gigawatt acting for one hour (3·6 × 10¹² joules).
2. •
   A measure of the amount of equipment that produces, consumes, transmits, or stores this amount of energy.

   • China's battery sales surged 49 percent to 786 gigawatt-hours in the first nine months of this year from a year earlier, with exports jumping 33 percent to 129 GWh, according to official figures. — 2025