This is quite a useful post from Microsoft: http://blogs.msdn.com/e7/archive/2009/01/06/windows-7-energy-efficiency.aspx
" the display can consume approximately 40% of the power budget on the typical mobile PC and anywhere from 30-100+ Watts on a desktop PC." So, do your searching with the monitor off! The PC power usage is split: LCD monitor 43% Chipset, 21% CPU 9% Graphics 8% HDD 5% Network 4% 2009/1/12 Frankie Roberto <[email protected]> > > On Mon, Jan 12, 2009 at 2:49 PM, Dirk-Willem van Gulik < > [email protected]> wrote: > > >> > Does anyone have the working for this? I would LOVE to see it, given >> that >> > (for a start): >> >> No - but willing to guess that they either took the total energy >> consumption and divided it - or took a reasonable number x number of >> servers; assumed 100watt and took it from there. >> > > It's not quite clear how he worked it out - all the news stories say is > that he's submitted his findings for [possible] future inclusion in a > publication from the US Institute of Electrical and Electronics Engineers. > > The BBC story seems to suggest that he may have included the carbon cost of > the requesting client computer within the calculation ("Speaking to the BBC, > he said a combination of clients, networks, servers and people's home > computers all added up to a lot of energy usage") - but that quote may have > been taken out of context. > > Leo Hickman at the Guardian has done a reasonable job at trying to get the > bottom of the figures (and notes the conflict of interest): > http://www.guardian.co.uk/environment/ethicallivingblog/ > 2009/jan/12/carbon-emissions-google > > > Frankie > > -- > Frankie Roberto > Experience Designer, Rattle > 0114 2706977 > http://www.rattlecentral.com > -- Brian Butterworth follow me on twitter: http://twitter.com/briantist web: http://www.ukfree.tv - independent digital television and switchover advice, since 2002
