When construction was completed on the Empire State Building (ESB) in 1931 it cost $25.6 million—that’s just $9.20 per square foot. You can’t even build a single floor for that nowadays, much less a 1,454-foot tall skyscraper (adjusting for inflation, the ESB would cost $352 million today). Though the building hosts events and tour groups, most of us only see it from the outside and don’t realize that the reason it’s known as the World’s Most Famous Office Building is because tenants occupy the vast majority of its 102 floors. And like any other office building, lighting consumes the majority of its electrical costs—a whopping 39 percent.

In order to meet their stringent return-on-investment requirements, Anthony Malkin, President of Malkin Holdings, which owns the ESB, and Jones Lang LaSalle, an energy and sustainability consultancy, commissioned Lutron to supply pre-built tenant spaces throughout the building with sustainable lighting control solutions as part of the Clinton Climate Initiative Building Retrofit program aimed at improving efficiency and financial performance. The building-wide retrofit is projected to provide a total lighting energy savings of up to 65 percent and a reduced installed payback period of just 2.75 years. Overall, the Lutron system will reduce energy use by 38 percent and energy bills by $4.4 million per year. Moreover, the upgrade will prevent an estimated 105,000 metric tons of greenhouse gas emissions over the next 15 years.

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