[RE-wrenches] Small Wh and large LRA

[Mark Dickson]

Hello Wrenches, 

I've been asked to design a battery based PV system for a load that has a
high start up surge of about 62A @ 115V.  The thing is, once it is running
it will only run for ~10 minutes per day at 11A.  So the daily loads are
very low.  How do I size a battery bank large enough to handle the large
start-up surge, yet reasonable enough to cover the modest daily load?  Is
there a rule-of-thumb for this?

 

Best regards,

 

Mark Dickson,

NABCEP Certified Solar PV Installer T

Oasis Montana Inc.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20100317/2291b527/attachment-0003.html>