How many kw in 70kav?

Answer 1

The power in watts equals the VA times the power factor.

For a resistive load like a convector heater or an iron the power factor is 1

For other things like motors the power factor might be 0.7.

A poor power factor is not a good thing because more current is needed from the supply to produce a given amount of power, so that requires thicker wires (more expensive).

For a power factor of 1, 70 kVA = 70 kW

For a power factor of 0.7, 70 kVA = 50 kW.