Sharp modules [RE-wrenches]

[Jeffery Wolfe, Global Resource Options]

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Doug and Kurt, 

We like the MC's on new battery systems almost as much as on grid-tie
non-battery. Use 12V modules, connect 5 in series (in the North). That's
4 quick wiring connections in place of conduit and conductors. Then we
use multiple long pre-made or field made MC extensions to go to the fuse
combiner. Yes, more work than non-battery, but we think a lot less work
than before. We install the USE-2 neat and straight, just like on the
non-battery systems. Typically we'll transition to THHN in a roof
junction box, and then put the fuse box down where we can get to it more
easily.

Plus, we have none of the junction box leakage issues. No solution is
perfect though.

Jeff
Jeffery D. Wolfe, P.E.
NABCEP Certified Solar PV Installer(tm)
Global Resource Options, Inc., Solar  Wind  Energy Solutions


-----Original Message-----
From: Doug Pratt [mailto:dmpratt at sbcglobal.net] 
Sent: Monday, February 28, 2005 10:07 PM
To: RE-wrenches at topica.com
Subject: RE: Sharp modules [RE-wrenches]

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Kurt, only the Sharp 80 & 123 watt products are coming thru with real
J-boxes on them anymore. All others are MC connector only. 

You're absolutely right, for battery-based systems the MC connectors are
no help. You end up having to add j-boxes and whacking off the MC ends. 

-Doug Pratt

-----Original Message-----
From: Kurt Nelson [mailto:sunwise at cheqnet.net]
Sent: Monday, February 28, 2005 5:02 PM
To: RE-wrenches at topica.com
Subject: Sharp modules [RE-wrenches]


Greetings all,

I have not used the Sharp product to-date, having used Siemens and Shell
as my primary modules.  Can someone please tell me if the Sharp 165,
which the spec sheet lists as having MC connectors, is similar to the
Shell 165 which comes with MC connectors but has a fully functional
J-box (remove the MC cables, install the foam plug, use the knock-outs)?
For lower voltage systems the MC connectors don't seem very useful, and
regardless of code I use liquid-tight to interconnect on most of my
off-grid systems.

Thanks -- Kurt

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