The methods of standardization or calibration employed have much in common even in the cases that appear most diverse.
The joule (/ËdÊuËl/), symbol J, is a derived unit of energy in the International System of Units. It is equal to the energy transferred (or work done) to an object when a force of one newton acts on that object in the direction of its motion through a distance of one metre (1 newton metre or NÂ·m).
kWh, Energy. The watt-hour (symbol WÂ·h) is a unit of energy. It is commonly used in the form of the kilowatt-hour, which is 1,000 watt-hours. It is not an SI unit because it contains the non-SI unit hour. The SI unit of energy is the joule (J), equal to one watt-second.