As part of the major Empire State Building retrofit project, the skyscraper now has completely refurbished windows that are four times more thermally efficient.
To make the 6,514 triple-glazed insulated window panels, the refurb team used 96 percent of the existing glass and frames. The new windows will reduce solar heat gain by more than 50 percent and will reduce the building's energy costs by more than $400,000 a year. All of the renovating was done on-site to reduce the energy and cost of transportation.
The retrofit is being funded and operated by the Clinton Climate Initiative, Johnson Controls, Jones Lang LaSalle and the Rocky Mountain Institute. The entire project is expected to reduce energy consumption by 38 percent, CO2 emissions by 105,000 metric tons over the next 15 years and to cut energy costs by $4.4 million a year. The project will cost about $20 million and should be completed in 2013.
via Earth 911
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