The Empire State Building is celebrating a collective $4.7 million in energy savings over the past two years since it received a $500 million energy efficiency retrofit. Five years ago, the famous landmark set out to cut its carbon emissions by installing a series of upgrades that included energy-efficient lighting, a modern boiler system, upgraded windows and radiator insulation. In 2011, the building even earned LEED Gold Certification, and it exceeded its energy reduction goals by 4 percent in 2011 and 5 percent in 2012. The retrofitting project is set to be completed over the next four years and it’s expected to save the building $4.4 million in annual energy costs—an energy reduction of about 38 percent which will save a minimum of 105,000 metric tons of CO2 over the next 15 years.
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