Stephen Broos's posts

Posted by Stephen Broos on Nov 6, 2015 12:24 am

#1 -  Renewable Energy > Technical Discussion: Solar Electric System - Photovoltaic > catamaran pv array
I am installing a pv array on a 21 ft Wharram catamaran. Its function is to charge batteries to power an electric outboard motor.
System consists of:
    4 pv panels of 90 watts @ 12vdc (total 360 watts)
    4 golf cart batteries (6volts) wired in series for 24vdc
    Midnight solar "Kid" mppt charge controller
     2000 watt electric outboard motor @ 24vdc
 The panels are mounted so that at times I will fold one on top of another so that only 2 panels are charging. This will only be occasionally, most of the time all 4 panels will be in full sun.
  My question is which would be better, to wire the panels in series for nominal 48vdc or series/parallel with 2 strings @ 24vdc? If the array is in series and 2 panels are covered, does that stop the charging or does it carry on at 24vdc?

Disclaimer and Disclosure

The Alternative Energy Store, Inc reserves the right, within its sole discretion, to refuse or delete any posting or portion thereof, or terminate or block the access to this forum.

The opinions and statements posted on this forum are the opinions and statements of the person posting same, and do not constitute the opinion or act of the Alternative Energy Store, Inc (AltE). The Alternative Energy Store, Inc does not endorse or subscribe to any particular posting. No posting shall be construed as the act or opinion of the Alternative Energy Store, Inc.

Click here for BBB Business Review

McAfee SECURE sites help keep you safe from identity theft, credit card fraud, spyware, spam, viruses and online scams
Desktop Website | Mobile Website


Click on an icon to share! If you don't see the method you want, hover over the orange "+".


What can we do to help you?

Please enter a summary
Sorry, the copyright must be in the template.
Please notify this forum's administrator that this site is using an ILLEGAL copy of SMF!
Copyright removed!!