All energy is measured in joules.
Electrical energy is measured in the same units as any other type of energy: joules.
The energy used to power a computer is Electrical Energy.
watts or kilowatts are used to measure power, which is how quickly energy flows, and electrical energy is measured in kilowatt-hours. A kilowatt-hour is also known as a Unit of electrical energy, and it is the amount of energy used when a power of 1 kilowatt flows for 1 hour.
volts
a watt
Watts. Also for any other type of power (energy / time), that is, for transfer of energy that is not electrical in nature.
The most practical use of electrical measurements most often used would be a kilowatt-hour meter which is attached to usually a home electrical system to measure the amount of energy used.
They usually just measure current used and assume a known voltage.
megawatt-peak (MWp)- a measure of electrical output commonly used for solar energy devices.
Voltage
size of the buildng and what the buildings is using to pull on the electrical energy
An absorption dynamometer is an instrument used to measure force, by measuring the energy absorbed via friction or electrical resistance.