On Tue, Oct 28, 2008 at 6:53 PM, DJ Delorie <[EMAIL PROTECTED]> wrote: > >> You may want to check power factor. > > Perhaps you're thinking of power efficiency? You don't pay for power > factor problems (imaginary power).
Efficiency is probably low. Power factor is probably low too. I believe the utility charges for Volt-Amperes (VA). For PF < 1 you are paying. My guess for a typical PC power supply would be 60-70% efficient and a PF of 0.7 - 0.75. Just guesses. > >> Don't you have a number of PCs running 24x7? > > Yup, at least six of them. If you need another fun project --- Rack mount power distribution box with a PF corrected front end (PF > 0.99) and some high efficiency DC-DC converters. ;-) (* jcl *) -- http://www.luciani.org _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user