Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!rice!uw-beaver!zephyr.ens.tek.com!videovax!bill
From: bill@videovax.tv.tek.com (William K. McFadden)
Newsgroups: sci.electronics
Subject: Re: help interpreting kwh meter
Message-ID: <5928@videovax.tv.tek.com>
Date: 25 Jul 90 15:32:58 GMT
References: <1676@yenta.alb.nm.us> <5921@videovax.tv.tek.com> <3877@kitty.UUCP>
Reply-To: bill@videovax.tv.tek.com (William K. McFadden)
Distribution: sci
Organization: Tektronix TV Measurement Systems, Beaverton OR
Lines: 21

In article <3877@kitty.UUCP> larry@kitty.UUCP (Larry Lippman) writes:
>	If you had a 100 ampere service and your meter had a Kh of 3.6 (see
>my recent article) and you pay $ 0.10 per KWH, each revolution is about
>1/28 of a cent.
>	78 rpm indicates an instantaneous load of about 16.8 KW, so at that
>rate you'd be paying the utility $ 1.68 per hour.  Them rpm's add up
>fast!   :-)

Actually, our power is about $0.035 per KWH up to 300 KWH and $0.043 above
that, so your figures are about two times too high.  (Out of curiousity, is
there anyone with cheaper power?)  Also, 78 RPM is a slight exaggeration.  It
seems like it's going that fast, but I don't think it really is.  Also, the
average rate is probably a lot lower than this.  For some reason, I seem to
look at the meter when the dryer, water heater (no flames--I rent), oven, and
air conditioner are running. :-)  The water heater, dryer, and air conditioner
use 4.5, 5.2, and 1.6 KW, respectively.  I don't know what the oven uses.
-- 
Bill McFadden    Tektronix, Inc.  P.O. Box 500  MS 58-639  Beaverton, OR  97077
bill@videovax.tv.tek.com,     {hplabs,uw-beaver,decvax}!tektronix!videovax!bill
Phone: (503) 627-6920       "The biggest difference between developing a missle
component and a toy is the 'cost constraint.'" -- John Anderson, Engineer, TI