Tuesday, December 04, 2007



How is Blackle saving energy?

Blackle was created to remind us all of the need to take small steps in our everyday lives to save energy. Blackle searches are powered by Google Custom Search.

Blackle saves energy because the screen is predominantly black.
"Image displayed is primarily a function of the user's color settings and desktop graphics, as well as the color and size of open application windows; a given monitor requires more power to display a white (or light) screen than a black (or dark) screen." Roberson et al, 2002

In January 2007 a blog post titled Black Google Would Save 750 Megawatt-hours a Year proposed the theory that a black version of the Google search engine would save a fair bit of energy due to the popularity of the search engine.
Since then there has been skepticism about the significance of the energy savings that can be achieved and the cost in terms of readability of black web pages.
We believe that there is value in the concept because even if the energy savings are small, they all add up.
Secondly we feel that seeing Blackle every time we load our web browser reminds us that we need to keep taking small steps to save energy.

"Blackle.com - Saving energy one search at a time".


3 comments:

dai said...

when did you become such a green person

ef said...

i typed 'what is this' into Blackle and lots of sites on climate change and greenhouse effect and eco-friendly stuff came up....

still dun get what blackle is? google custom search? what's that? how come it doesn't give the same search result as google?

fe li ci a said...

i have always been a green person man.

some people believe that a black screen will save some power consumption and since google is one of the mostly visited sites, blackle is the black version of google man......