Electrical energy consumption


  

Electricity is the main energy source used to produce aluminum through the process of electrolysis.  The hydroelectricity consumed by our Québec smelters is, of course, a renewable energy source.  Our plants also use some fossil fuels (see graph above).  Electricity consumption per tonne of aluminum produced is higher at the Baie-Comeau Smelter due to the less efficient Söderberg technology.  In 2012, there was a slight increase in the amount of energy consumed per tonne of aluminum produced.