Empire State building saves in first year of energy efficiency plan

New York, May 31, 2012 – One year after a building retrofit project, the Empire State Building is ahead of plan and has exceeded its year one energy-efficiency guarantee by five percent, saving $2.4 million and establishing a commercial real estate model for reducing costs, maximizing return on investment, increasing real estate value and protecting the environment.
The Empire State Building is estimated to have saved 4,000 metric tons of carbon. Once all tenant spaces are upgraded, the building will save $4.4 million a year, a 38 percent reduction of energy use that will cut carbon emissions by 105,000 metric tons over the next 15 years.
Improvement measures performed by Johnson Controls and Jones Lang LaSalle included the refurbishment of all 6,500 windows, a chiller plant retrofit, new building controls and a web-based tenant energy management system.
The annual savings for the project are calculated based on the international performance measurement and verification protocol, option D, using a calibrated eQuest energy simulation model.
In the U.S., 40 percent of energy is consumed by buildings. In dense urban settings like New York City, commercial buildings account for up to 75 percent of energy used. If every commercial building in New York City followed this blueprint, carbon emissions would be reduced by 4 million tons – the equivalent to that generated by a typical coal-fired power plant.
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