When your pc screen is all white (like a word page, for example),
your computer comsuption is about 74 Watt. When it’s all black, the
average ist about 54 Watt.
Because of this, a few month ago, Mark Ontlush wrote an article
about the amount of energy that could be saved if Google had a black
background instead of white.
Considering the high popularity of the website, according to
Mark, the energy savings would be about 750 MW-Hour per year.
Answering to this post, Google created a black version of it’s
search engine named Blackle.com ( http://blackle.com) , that works the
exact same way as the original version but uses less power.
Pass it on to friends, family and discussion list…let’s all
give our support to Blackle!!
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Some people may find that the light text on a black background uncomfortable to read. Greygle was designed with a grey background and dark text as compromise for energy savings and readability. It may not save as much energy as Blackle does on a per page basis, but if people don’t use Blackle due to uncomfortness, then there will be no energy savings. Perhaps, Greygle would be an acceptable option for them to save energy and still have a comfortable reading experience, and thus provide a significant energy savings overall still.