In addition to several other improvements to increase energy management, the Empire State Building is upgrading its windows to make them more insulated, holding in cool air in summer, while keeping out the heat, and doing the reverse in the winter. The Building expects to save on its energy use by 38% after the work is completed.
The new windows for the Empire State Building were made possible in part by the American Recovery and Reinvestment Act, legislation designed to help stimulate the sagging economy and also increase the use of renewable and green energy modalities. This Act empowers the government to offer rebates and tax credits to companies which utilize green technologies. About $4.5 billion is available to change federal buildings into more environmentally friendly “green” facilities.