The energy that will be ideally radiated by a 100 kW transmitter in 1 hour is :

36 x 107 J 36 x 104 J 36 x 105 J 1 x 105 J

36 x 107 J

Energy : E = P t Power : P = 100 kW ; Time : t = 1 hr = 3600 s E = 36 x 107 J