How to convert kilojoules to watts
You can calculate watts from kilojoules and seconds, but you can't convert kilojoules to watts, since kilojoule and watt units represent different quantities.
Kilojoules to watts calculation formula
The power P in watts (W) is equal to 1000 times the energy E in kilojoules (kJ), divided by the time period t in seconds (s):
P(W) = 1000 × E(kJ) / t(s)
watt = 1000 × kilojoule / second
W = 1000 × kJ / s
What is the power consumption of an electrical circuit that has energy consumption of 9 kilojoules for time duration of 3 seconds?
P(W) = 1000 × 9kJ / 3s = 3000W