Blackle.com

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URL http://www.blackle.com
Commercial? Yes
Type of site Search engine
Registration No
Available language(s) English, Portuguese, French, Czech, Italian, Dutch
Owner Heap Media Australia
Created by Toby Heap[1]
Launched January 2007
Alexa rank 5,897
Current status Active

Blackle is a website powered by Google Custom Search, which aims to save energy by displaying a black background and using grayish-white font color for search results.

Contents

Concept

The concept behind Blackle is that computer monitors can be made to consume less energy by displaying much darker colors. Blackle is based on a study which tested a variety of CRT and LCD monitors. There is dispute over whether there really are any energy saving effects.[2][3]

This concept was first brought to the attention of Heap Media by a blog post, which estimated that Google could save 750 megawatt hours a year by utilizing it for CRT screens.[1][4] The homepage of Blackle provides a count of the number of megawatt hours that have been saved by enabling this concept.

Examination

Darren Yates, a technology journalist who reviews computer hardware, tested four CRT monitors and twenty-three LCD monitors, and found that the CRT monitors did use more energy displaying a white screen, but less than the calculations made by the blog post that inspired Blackle.[5]

The LCD monitors tested showed slightly less power use displaying a white screen in the majority of cases [6], although most of the larger (24-inch) monitors did use slightly less power displaying a black screen. As of 30 January 2010, Blackle claims to have saved over 1,680 kilowatt hours.

References

External links

cs:Blackle de:Blackle es:Blackle fr:Blackle he:Blackle pt:Blackle.com sr:Blackle.com sv:Blackle th:แบล็กเกิล

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