One year after the Empire State Building completed its massive energy retrofit it has already saved $2.4 million, 5% more than expected.
When the final tenent spaces are upgraded, the iconic building will save $4.4 million a year, a 38% reduction of energy use that will cut carbon emissions by 105,000 metric tons over the next 15 years.
In total, the retrofit will cost $550 million. Management says the retrofit should serve as a commercial real estate model for reducing costs, maximizing return on investment, increasing real estate value, and protecting the environment.
The building was retrofitted under the Clinton Climate Initiative Cities program and the C40 Cities Climate Leadership Group. ??It focused on core building infrastructure, common spaces and tenant suites, including refurbishing all 6500 windows, a chiller plant retrofit, new building controls, and a web-based tenant energy management system. All 68 elevators are 30% more efficient and able to send excess energy back to the building’s grid. Johnson Controls, another partner, guarantees the energy savings through a $20 million performance contract – the retrofit is paid through the energy saved over the life of the contract. If the savings aren’t realized, Johnson Controls pays the difference.
The 2.85 million-square-foot Empire State Building is both LEED Certified for existing buildings and Energy Star Certified.