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July 29, 2009 @ 9:49 am
First 100% Renewable Energy Powered Billboard in NYC

If you read my post on the history of lighting (Part 1 and Part 2) then you know about the energy efficiency benefits of LEDs as a light source. Ricoh, the office solutions company, created the first fully renewable energy powered billboard in New York’s Times Square to commemorate their 4th consecutive year being listed as one of the 100 most sustainable corporations in the world. The sign is currently being powered by solar panels and will eventually be flanked by small wind turbines, making the sign a mini generator. The LED flood lights use 50% less electricity than standard high intensity discharge lamps, while lasting over 25 times as long (50,000 hours vs. 1000-2000 hours)! By using renewable energy, the sign emits 18 fewer tons of CO2 annually compared to traditional billboards. For more information on the project and Ricoh’s other initiatives, click here. Also, special thanks go to my friend and reader Billy, for alerting me to the billboard.

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