How to wire solar panels in series for specific voltage: 12volts to 24volts

Marcelino Soto
1 Posts
Jun 3, 2007 06:17 pm
How to wire solar panels in series for specific voltage: 12volts to 24volts

Can I wire two 12 volts 100 watts solar panels in series to obtain 24 volts. Do you need diodes between them or any protection device?
 
 
Ian Williams
18 Posts
Jun 4, 2007 12:01 am
Re: How to wire solar panels in series for specific voltage: 12volts to 24volts

Assuming both panels are the same wattage and same type; to wire two, 12V panels to get 24V, just run either the positive or negative wire from one panel to the opposite wire on the next panel. Ex. red to black. As far as any breakers, you wont need any between the panels, but most likely between the panels and battery. Hope this helped

Ian Williams
 
 
James Cormican
578 Posts
Jun 7, 2007 11:34 am
Re: How to wire solar panels in series for specific voltage: 12volts to 24volts

you need an overcurrent protection device for every series string.  so if you have 1 series string of two modules, you would need an overcurrent device capable of 1.56 x ISC before the charge controller, and an overcurrent device of the rating of the controller after the controller and before the batteries.

see last image at this link for simple series wirning drawing.

http://gallery.altenergystore.com/James-Cormican-gallery/v/8674952267/?g2_page=2


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« Last Edit: Jun 7, 2007 11:39 am by James Cormican »
 
 

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