The Empire State Building, arguably the world’s most famous office tower, is 1,472 vertical feet of historic American real estate. It also contains 2.8 million square feet of office space, constructed to the energy efficiency standards of the early 1930s. So when Anthony Malkin took over management of the building several years ago, he also inherited an $11 million annual energy bill and a problem: How could he turn the iconic but aging building into a 21st-century office tower?
Now, a sweeping $13.4 million energy retrofit is slashing the Empire State Building’s energy consumption by nearly 40 percent and reducing greenhouse gas emissions by 105,000 metric tons over the next 15 years while trimming $4.4 million from annual energy costs. We took a firsthand look at what such a massive and meaningful project looks like, starting in a nondescript corner of the fifth floor where the Empire State Building is turning two-decade-old glass into future dollars.