A family needs up to 20 kW (20,000) watts but because different houses take maximum power at different times, the average over a street might be 3 kW per family.
25 Watts I depends entirely on the card you use in the slot. For example, in graphics cards can require 500 watts at times, whilst a sound card may require much less.
Watts family was created in 1985.
1200
100wats
1540 watts
210,000,000 watts
132 watts
Watts = Volts x Amps So you need to know the current. This is only for resistive load.
25000 watts
1650 watts.
746 watts.
95,000 watts.