Alcoa North American Extrusions (NAE) views energy conservation as a means
of eliminating waste and increasing sustainability. Energy-efficient production
processes not only reduce the amount of money required to purchase energy,
but also yield benefits such as improved product quality, reduced equipment
maintenance, increased capacity, better throughput, and reduced environmental
impact. The development of a corporate energy conservation program has also
substantially increased energy awareness within Alcoa’s workforce.

Energy efficiency and clean, renewable energy will mean a stronger economy, a cleaner environment, and greater energy independence for America. Working with a wide array of state, community, industry, and university partners, the U.S. Department
of Energy’s Office of Energy Efficiency and Renewable Energy invests in a diverse portfolio of energy technologies.

Use of the turbine exhaust gases for combustion of fuels such as
natural gas, light oil, by-product gases in a furnace, heater, boiler
etc. Most commonly used system is a boiler using a “duct-burner”
where residual oxygen from the turbine exhaust gases is used for
combustion of the fuel.