Blackle is an internet search engine powered by Google Programmable Search Engine. It was created by Tony Heap of Heap Media Australia with the goal of saving energy by displaying a black background with grayish-white text color on search results.[2] As of July 2023, Blackle claims to have saved over 10.07 MWh of electrical energy.[3]
The concept behind Blackle is that computer monitors can use less energy by displaying darker colors. Blackle's design is based on a study that tested a variety of CRT and LCD monitors. However, the energy-saving claims, especially for users of LCD screens with a constant backlight, are disputed.[4][5][6]
This concept was brought to the attention of Heap Media by a blog post, estimating that Google could save 750 megawatt hours a year by using it for CRT screens.[1][7] The homepage of Blackle provides a count of the number of watt hours claimed to have been saved by enabling this concept.
History
[edit]The Blackle Homepage (as of January 2021[update])The Blackle Homepage (as of April 2007)
Blackle launched in January 2007, gaining popularity and being featured in multiple mainstream media outlets during that time.[citation needed]
