Gigawatt hours to standard cubic yards conversion calculator shown above calculates how many standard cubic yards are in 'X' gigawatt hours (where 'X' is the number of gigawatt hours to convert to standard cubic yards). In order to convert a value from gigawatt hours to standard cubic yards (from GWh to scy) simply type the number of GWh to be converted to scy and then click on the 'convert' button.