no 14 gimana caranya

p = 5 x 20 watt x 12 jam = 1.200 wh
6 x 10 watt x 10 jam = 600 wh
1 x 80 watt x 10 jam = 800 wh
= 1.200 + 600 + 800
= 2.600/1000
= 2,6 KWH

1 hari = 2,6
30 hari = 2,6 x 30
=78 kwh