The joule is a measure of energy. 1 gigajoule equals 1 billion joules. This is equivalent to approximately 278 kilowatt hours, or the energy content of 25 liters of gasoil

The joule is a measure of energy. 1 gigajoule equals 1 billion joules. This is equivalent to approximately 278 kilowatt hours, or the energy content of 25 liters of gasoil