Gallery: Empire State Building Achieves LEED Gold Certification

It’s official — the Empire State Building has been awarded LEED Gold certification. Thanks to a massive green overhaul that took more than two years, the landmark is now the tallest building in the United States to receive LEED certification. The groundbreaking retrofit included replacing the aging building’s windows with double hung operable windows and installing an energy efficient heating and cooling system. The changes are expected to reduce the building’s energy consumption by more than 38 percent and should save $4.4 million in energy costs.

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  1. E-Muffin September 16, 2011 at 4:09 pm
    This is a major and fantastic accomplishment! If there were only MORE companies willing to take this leap. NYC could take a few recycling bins on the streets for all the water bottles sold on the streets!
  2. heathercohen September 14, 2011 at 2:43 pm
    Integral Group (formerly Rumsey Engineers) is honored to have been a part of the process, providing mechanical engineering and energy modeling for this significant project.