Blackle is an internet search engine powered by Google Programmable Search Engine. Blackle was created by Tony Heap of Heap Media Australia, which aims to save energy by displaying a black background with a grayish-white text color on search results. Blackle claims to have saved over 8.5

MWh A kilowatt-hour (unit symbol: kW⋅h or kW h; commonly written as kWh) is a unit of energy: one kilowatt of power for one hour. In terms of SI derived units with special names, it equals 3.6 megajoules (MJ). Kilowatt-hours are a common bil ...

of electrical energy as of January 2021. For comparison, the average American household consumes 11 MWh of electrical energy per year.

Concept

The concept behind Blackle is that

computer monitors A computer monitor is an output device that displays information in pictorial or textual form. A discrete monitor comprises a visual display, support electronics, power supply, housing, electrical connectors, and external user controls. The di ...

can be made to use less energy by displaying much darker colors. Blackle is based on a study which tested a variety of

CRT CRT or Crt may refer to: Science, technology, and mathematics Medicine and biology * Calreticulin, a protein *Capillary refill time, for blood to refill capillaries *Cardiac resynchronization therapy and CRT defibrillator (CRT-D) * Catheter-re ...

and

LCD monitor A thin-film-transistor liquid-crystal display (TFT LCD) is a variant of a liquid-crystal display that uses thin-film-transistor technology to improve image qualities such as addressability and contrast. A TFT LCD is an active matrix LCD, in cont ...

s. However, these claims are disputed over whether there are any energy saving effects, especially for users of LCD screens, where there is a constant backlight. This concept was first brought to the attention of Heap Media by a

blog post A blog (a Clipping (morphology), truncation of "weblog") is a discussion or informational website published on the World Wide Web consisting of discrete, often informal diary-style text entries (posts). Posts are typically displayed in Reverse ...

, which estimated that Google could save 750

megawatt hours A kilowatt-hour (unit symbol: kW⋅h or kW h; commonly written as kWh) is a unit of energy: one kilowatt of power for one hour. In terms of SI derived units with special names, it equals 3.6 megajoules (MJ). Kilowatt-hours are a common bil ...

a year by utilizing it for

screens. The homepage of Blackle provides a count of the number of watt hours claimed to have been saved by enabling this concept.

History

Blackle launched in January 2007. During this time, Blackle gained popularity and was featured in multiple

mainstream media In journalism, mainstream media (MSM) is a term and abbreviation used to refer collectively to the various large mass news media that influence many people and both reflect and shape prevailing currents of thought.Chomsky, Noam, ''"What makes mai ...

outlets. Blackle international, which translated blackle into Portuguese,

French French (french: français(e), link=no) may refer to: * Something of, from, or related to France ** French language, which originated in France, and its various dialects and accents ** French people, a nation and ethnic group identified with Franc ...

, Czech, Italian, and Dutch was retired in 2019. While th
International page
is still up, every link listed has experienced link rot. As of 2021, the site is only available in English.

References

External links

* {{DEFAULTSORT:Blackle.Com Australian websites Energy conservation Environmental websites Web services Web service providers Google Computers and the environment Internet properties established in 2007

Concept

History

See also

References

External links