Utility meter questioned [RE-wrenches]
Jim Easton
jim at altenertec.com
Wed Dec 6 08:47:13 PST 2006
Where are the meter current transformers located relative to the solar feed?
Jim Easton
Alternative Energy Technologies
CSL: 852243
9465-B Mission Park Place
Santee, CA 92071
Tel: 619-262-8800
Fax: 619-562-8811
Cell: 858-527-0240
-----Original Message-----
From: William Miller [mailto:wrmiller at charter.net]
Sent: Tuesday, December 05, 2006 8:19 AM
To: RE-wrenches at topica.com
Subject: Utility meter questioned [RE-wrenches]
Colleagues:
We recently installed a 30 KW system on a manufacturing facility. The
customer just received the first utility bill since the system was
energized. The bill shows no savings on the electric bill.
The electronic utility meter screen 99 is reported to show instantaneous
consumption or generation into the grid. I read the meter screen 99 at
between .64 and 2.0 KW. Each of the 6 inverters were putting out about 2.0
KW each. When operating, the inverters were putting 28 amps back into the
grid on each phase.
I then shut down the inverters and the meter reading 99 did not
change. This is especially surprising in light of the fact that the plant
was in operation with all three sublimation machines and the complete line.
I will meet with the utility to see if there is indeed a problem with the
meter. In the meantime, has anyone had any experience like this?
Thanks for your thoughts.
William Miller
__________________________________________________________________
William Miller
Miller Power and Communications
Voice :805-438-5600 Fax: 805-438-4607
email: wrmiller at mpandc.com
http://mpandc.com
License No. C-10-773985
_____________________________________________________________
Check out our latest project at
http://mpandc.com/case_studies/pv_school/pv_school.html
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