02 Jul '13, 3pm

Empire State Building Efficiency Retrofit Model Rolls Out Across US

Energy efficient lighting is the other low hanging fruit, even more so in high temperature regions because an innefficient light is not just a light but a radiant heater with as much as 90% of the energy it consumes simply going to heat, this means that A/C in buildings with innefficient lights has to first fight against thousands of little heaters before it can actually begin to cool. When you switch say from a 50W halogen downlight to an 8W LED about 40 of those 42w savings are in the form of reduced heat production. So for every kw saved on lighting you save an additional Kw of cooling. This is an oft forgotten benefit of lighting upgrades, I read a case study of a tropical resort who switched to LED lighting in their lobbies etc that essentially ran 24 hours a day, this resulted in a savings of something on the order of 20kw of continuous demand, their business case ha...

Full article: http://cleantechnica.com/2013/07/02/empire-state-building...

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Thank you so much for the shoutout, @rubyfive!

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