here we go again [RE-wrenches]

Joel Davidson joeldavidson at earthlink.net
Sat May 18 08:50:49 PDT 2002


I seem to remember that about a year or two ago, Tom Starrs reported that
tests showed utility analog kilowatt-hour meters ran at different rates
forward and backward and generally in favor of the utility company.

"Todd Cory, Mt. Shasta Energy Services" wrote:

> Not sure why you say that Carl. Here is what the manufacturer of my analog
> meter said about it's bidirectional measurement capabilities:
>
> Hello,
>
> Attached is the most recent test data for the class meter you reference.
> As
> you can see, the difference between forward and reverse registration is
> statistically insignificant.  The meter is designed to accurately measure
> energy in either direction.
>
> Hugh Sales
> Marketing Manager
> Siemens PT&D - Meter Division
>
> -----Original Message-----
> From: Todd Cory [mailto:toddcory at jps.net]
> Sent: Wednesday, June 06, 2001 9:17 AM
> To: hugh.sales at ptd.siemens.com
> Subject: specification sheet needed
>
> Hello,
>
> I have a Landis & Gyr analog kWh meter on my house and I would like to
> receive the specification sheet for it. I am specifically needing
> information on this meters accuracy when running "backwards" in a net
> metering application. My utility is claiming they question it accuracy
> when operating in this mode and I would like to see the specifications
> to substantiate that ascertain.
>
> My meter has these numbers on it:
>
> Rr 13 8/9
> Landis & Gy
> Lafayette Indiana
> 244
> 240 3W  Type MS II Kh 7.2
> 200 CL Form 2S TA30
> Single Stator Watthour Meter
>
> Thanks in advance for your help with this request.
>
> Sincerely,
>
> Todd Cory
> P.O. Box 689
> Mt. Shasta, CA 96067
>
> Todd
>
> carl reuter wrote:
>
> > Wrenches: PGE doesnt charge for a bi-directional meter when you
> > install a grid -tie system , its only when you ask for TOU that they
> > nick the extra $277. The existing meter is not certified for
> > backfeeding and is not accurate at reading in the reverse direction,
> > solar guerillas take note, it reads the sellback as less than actual.
> > Many of my customers would love to have that slick digital TOU meter,
> > but unless a customer is definetly never around during weekdays, TOU
> > isnt cost effective. Carl Reuter
> >
> > =====
> > Carl Reuter- Owner
> > Land and Sea Solar
> > "Bringing Solar Down to Earth"
> > www.landandseasolar.com
> > Ph:831-477-7169 Fax: 831-465-8349
>
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