Posted: 11/01/2012

1930 - 1958: The Dawn of “Architectural” Office Lighting - 50b79b5727ead-CS_ESB_4_zoom.jpg - 2012-11-29 17:28:55 UTC
During the Empire State Building’s energy retrofit, installation of light controls including daylight and occupancy sensors reduced the amount of electricity used for lighting up to 65 percent.
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