Empire State Building going green

April 6, 2009 8:15:27 AM PDT
The lights atop the Empire State Building already change colors. Now the building itself is getting a permanent green makeover. The goal is to cut energy use by 38 percent, saving $4.4 million a year in energy costs.

Former President Bill Clinton and New York Mayor Michael Bloomberg are hoping that the environmental changes at the iconic skyscraper will serve as a model for buildings around the world. They are giving details of the $20 million project at a Monday news conference.

RELATED: Visit 6abc.com's Green Living Channel

The updates include replacing 6,500 windows to reduce summer heat load and winter heat loss.

Tenants in the building will be given individualized Web-based power usage systems so that energy can be more efficiently managed.

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