MJLorton Solar Power and Electronic Measurement Equipment Forum

Tutorials, lessons and courses => Tutorials, lessons and courses => Topic started by: zatross on March 05, 2014, 08:07:03 AM

Title: measuring Solar panel output
Post by: zatross on March 05, 2014, 08:07:03 AM
After watching several youtube tutorials on diy solar panel making I have now gone ahead and knocked a few panels together.

I have a combination of 3x6 cells X 27 and  25 panels.

I know these do not come any where close to the standard 36-cell panel one sees on youtube but I am very surprised to see that my voltage reading remains at 1.8 VDC for all my panels.

However, the short circuit wattage is between 2 to 3 amps !

Could there be something wrong with my voltmeter or have i completely screwed up with my soldering...?     All the cells are in series and spec'd at 0.5V each
Title: Re: measuring Solar panel output
Post by: MJLorton on March 07, 2014, 12:44:01 PM
Perhaps if you post some pictures of what you have done it may help. I know there are many people who consider doing this. I think it's difficult to save the money and have the reliability vs the cost of solar panels these days.
But I think many could learn from your experience and possible mistakes and decide if it is worthwhile.

Cheers,
Martin.