Fibre-Based Broadband

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Energy-efficiency of fibre

"Fibre-based broadband requires very little power to transmit a full-speed signal over many kilometres. Conversely, a network based upon VDSL and wireless technologies require so much power that, according to Rod Tucker at Melbourne University, Australia will need to build two-to-three small new power stations to make it work;

VDSL requires double the amount of power to transmit at peak speed and also eight large batteries per node (of which there would be some 50,000 to 70,000, all of which would regularly need to be replaced at enormous expense.

A counter to this is that fibre-based phones can go dead in power cuts. However, any wireless home phone will do too, so it's an only an issue for those still using very-basic, traditional telephones." (http://www.red-jos.blogspot.fr/2013/03/the-vast-differences-between-nbn-and.html)

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