Question

what is the value of 1 KWh in joules

Answer 1

One kilowatt-hour is equal to 3600000 joules: 1kWh = 3600000J = 3.6⋅106J = 3.6MJ. So the energy in joules E(J) is equal to 3600000 times the energy in kilowatt-hour E(kWh): E(J) = 3600000 ⋅ E(kWh)

Answer 2

                        The value of 1 KWh in joules

• The “kilowatt hour is the unit of energy and is equivalent to '1 kW of power expended' for one hour.”

                 Energy (E) (kWh) = Power(P) (kW) $\times$ Time(T) (hour)

• Joule is the SI unit of energy and is “equal to the 'kinetic energy' of a kilogram mass of an object moving at the speed of one meter per second” Joule is expressed as $kg m^{2} s^{-2}$

                                             1 kW = 1000 J/s

                                 1kWh = 1000 j/s \times 3600 s

                                        1 kWh = 3,600,000 J.