If other forms of energy – say electrical energy – was also supplied in
joules (instead of the arcane kWh), you could readily compare the different
forms of energy with the different work that they do for you.
A joule is equal to a watt-second and a kilojoule is equal to a kilowatt-second. Therefore it is obvious (isn't it?) that a kilowatt-HOUR is just 3600 times bigger (because an hour is 60 X 60 or 3600 times bigger than a second) so that;
1 kW.h = 3600 kJ (or 3.6 MJ)
Regards, Bill Hooper Fernandina Beach, Florida, USA <><><><><><><><><><><><> Make it simple; Make it Metric <><><><><><><><><><><><>
