Indeed. I'm not aware of any power company that uses meters that measure apparent power (VA) for residential or even small business loads. I think they mainly are concerned with loads that have a high level of inductance (think manufacturing plants with huge AC motors) before they meter and charge based on power factor as well. To your average consumer, PFC doesn't save you any money as it simply isn't what is measured by the utility.
> -----Original Message----- > From: [email protected] [mailto:hardware- > [email protected]] On Behalf Of Anthony Q. Martin > Sent: Monday, August 01, 2011 4:55 AM > To: [email protected] > Subject: Re: [H] PFC (power factor corrected) PS for PCs? > > What's the confusion? You're paying for watts....you don't pay for > VA..that's a unit used for complex power, part if which includes > reactive power, which is not converted to useful work. Real power is, > which is measured in watts. > > On 8/1/2011 5:29 AM, Bino Gopal wrote: > > Lol that's exactly one of the links I found (among about the 20 or so I've > been perusing all day), but it still isn't clear to me from any of them whether > I'm paying for VA or watts...anyone know for sure or does it depend on your > particular power company and the kind of meters they use maybe...? > > > Date: Mon, 1 Aug 2011 00:12:50 -0700 > >> From: [email protected] > >> To: [email protected] > >> Subject: Re: [H] PFC (power factor corrected) PS for PCs? > >> > >> "Capacitor Input supplies have the characteristic that the Watt rating is in > >> the range of .55 to .75 times the VA rating (power factor of 0.55 to 0.75)." > >> > >> http://www.power-solutions.com/watts-va.php > >> On Jul 31, 2011 11:50 PM, "Bino Gopal"<[email protected]> wrote: > >
