[geeks] Got the CurrentCost meter installed

Patrick Finnegan pat at computer-refuge.org
Tue Jan 18 10:41:35 CST 2011


On Tuesday 18 January 2011, Jonathan Groll wrote:
> On Tue, 18 Jan 2011 01:44:19 -0500 (EST), der Mouse <mouse at Rodents-
Montreal.ORG> wrote:
> > >> To be fair I believe this unit's senser just 'clips on' rather
> > >> then being inline
> > >
> > > Yep, two clamps that go around the mains feed from your meter to
> > > the breaker box.
> >
> > I think that means they can't sense anything but current, thus
> > making it impossible for them to sense true power if your effective
> > total load is not resistive (no power factor correction) and
> > definitely not capable of correcting for things whose draw is not
> > sinewave - such as switching power supplies, to pick a totally
> > random example. :)
> 
> Does the utility charge it's residential customers for power factor
> correction?

Generally in the US, no.  Utilities are only allowed to charge 
residential customers for actual Watts used.

Pat
-- 
Purdue University Research Computing ---  http://www.rcac.purdue.edu/
The Computer Refuge                  ---  http://computer-refuge.org


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