Maybe 600vdc charge controller? Roy Rakobitsch NABCEP Certified Small Wind Installer® NABCEP Certified Solar PV Installer® Certified Advanced Tower Climbing, Safety & Rescue Wind/PV Design Engineer Windsine LLC 631-514-4166 www.windsine.org On Jul 22, 2015 1:52 PM, "Jerry Shafer" <jerrysgarag...@gmail.com> wrote:
> Wrenches > Some time back there was discussion on the conductor size and efficiency > rating requirement for long DC runs. > What I am looking at is this, 400 feet of MCM 400 to keep the line loss at > or below 1% per NEC code for an off grid application, cost vs return is not > acceptable. 2/0 is less than 2.5% and the cost is far less. Specs are 4 > strings of 3, 250 watt modules feeding one Outback FM 80 charge controller. > There are lots of things I can do like SMA instread, or 200 VDC charge > controller but nothing can be changed except the wire gauge. Does anyone > recall a thread with this topic. > > thoughts ?? > Jerry > > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > >
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