not gega watt ,it is gaga watt ,
you have to start from
1 watt
1000 watt = 1 k watt
1000 000 = 1 mega watt
1000 000 000 = 1 gaga watt
example : your home need 5 k watt = 5000 watt ,
but this mega watt or gaga watt amount generated from huge
turbine s ,to feeding cites needs in electricity demand .