Energy comparisons for materials are very revealing when it comes to the end product and its life cycle. For example, using aluminium in cars lowers fuel consumption and also helps save on scarce resources such as mineral oil. In the building trade, the fact that aluminium products are maintenance-free and have a long service life contributes to the energy savings. And far more foodstuffs can be packaged with one kilogram of aluminium than with other metal packaging materials. Viewed from a long-term perspective, then, the energy balance for aluminium is positive.

Energy requirement in KWh/t for different materials

Energy requirement in KWh/t in building application

Due to high stability of thin aluminium sheet the final energy requirement in practical use is quite lower than for other material!

source: Novelis AG