All Set to make a Solar Panel. Require some informtion
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NABCEP certified Technical Sales Professional
[URL="http://www.solarpaneltalk.com/showthread.php?5334-Solar-Off-Grid-Battery-Design"]http://www.solarpaneltalk.com/showth...Battery-Design[/URL]
[URL]http://www.calculator.net/voltage-drop-calculator.html[/URL] (Voltage drop Calculator among others)
[URL="http://www.gaisma.com"]www.gaisma.com[/URL] -
PWM CC are just a switch that connects your panels to the battery. Al PWM chargers Input Current = Output Current. 20 amps in = 20 amps out. Solar panels are current sources, not power voltage sources. That it is why it is possible to say hook up say a 240 watt panel with a rating of 36 volts Vmp, 6.6 amps Imp (a typical Grid Tied 72 cell panel, and only get 12 volts x 6.6 amps output (79 watts) at best on a PWM CC. Surprise!
Just think you could have bought a MPPT charge controller and that same 18 volt 20 amp panel would output 12 volts @ 29.1 amps from the CC.MSEE, PEComment
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Friends, can you please suggest me which junction box should I buy? I see two types of JB, one with only two metal connecters and one with four metal plates.Comment
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NABCEP certified Technical Sales Professional
[URL="http://www.solarpaneltalk.com/showthread.php?5334-Solar-Off-Grid-Battery-Design"]http://www.solarpaneltalk.com/showth...Battery-Design[/URL]
[URL]http://www.calculator.net/voltage-drop-calculator.html[/URL] (Voltage drop Calculator among others)
[URL="http://www.gaisma.com"]www.gaisma.com[/URL]Comment
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