Question

What is the commercial unit of electric energy?

Answer 1

commercial unit of energy is KiloWaltHour( KWh.) 1kWh is the electric energy consumed by an appliance of power 1 when it is used for one hour

The relationship between kwh and commercial unit is: 
1 KWh=3.6*106J (or 3600000 J) 

One KiloWaltHour is: 
1kWh = 1kW * 1h

Answer 2

Answer:

Kilowatt hour is the commercial unit of electric energy.The SI unit of electric energy is joule.

One kilowatt hour =3600000 joules