All forms of energy are measured using the same units. The SI unit for energy is the joule (J). However, the unit used by electrical utility companies is the kilowatt hour (kW.h).
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In the SI, any type of energy is measured in joules.
Ohm
Light in night, cooling in hot days, ice making, computer, running business units etc.
By 'speed of electricity', presumably, you mean 'speed of current'? We don't normally measure the speed of current but, rather, its intensity. The unit of measurement of current is the ampere (A), which is one of the SI system's seven base units. The ampere is defined in terms of the force a current produces, due to the magnetic field surrounding it, between two, parallel conductors.
The standard unit of capacitance is Farad which indicates the ability of the capacitor to hold an electric charge. Most capacitor values we encounter in households electronics or computers are expressed in farads, microfarads (µF) which is 10 to power of -6 and nanofarads (nF) 10 to power of minus 9.