Energy—Approach
Alcoa has emphasized energy efficiency since the early days of the company. In 1900, the electrical energy requirements to make a kilogram of aluminum from alumina were more than 55 kilowatt hours (kWh) of electricity. By 2000, our electrical energy requirement was reduced to 15 kWh per kilogram. Today, our best plants can produce primary metal using only 13.3 kWh per kilogram.
In addition to the ongoing energy reduction activities at the location and business unit levels, as well as the activities of the Alcoa Energy Efficiency Network, we continue to work on energy innovation with the goal of significantly changing the way we acquire and use energy. The initial activities deal with waste heat recovery and reuse from large energy-using unit operations, and process modifications that will reduce the energy input requirements for some major manufacturing systems.
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Aluminum is made of people
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