How much #energy does the #Internet use ? | Contraposition
►http://contraposition.org/blog/2011/07/31/how-much-energy-does-the-internet-use
The embodied power—the emergy of devices divided by their replacement lifespan—is roughly equivalent to their wall-socket power consumption. That is, looking at wall-socket electricity ignores half of actual energy use for computing devices. Specifically, we estimated that the total wall-socket power use of the Internet is between 83-144 GW and the embodied power is between 87-164 GW.
The total power use of the Internet, which we estimated to be between 170-307 GW, is about 1-2% of global energy use.
( je découvre au passage le concept d’#emergy : ►http://en.wikipedia.org/wiki/Emergy )
et :
What are the Internet’s dependencies ?
►http://contraposition.org/blog/2011/08/03/what-are-the-internets-dependencies
►http://img813.imageshack.us/img813/1164/dept.png
là on regarde les bases matérielles (#chimie) du réseau.
(encore une fois repéré par @karlpro)