I have two Siemens panels from 2005-ish (they came with the barge) connected to a 24v system thru a BlueSolar MPPT 75/15. I would like to increase our solar charging capabilities. Will adding new panels to the existing system cause problems?
asked
New panels with old?
"it depends" I suggest that you supply more information to get the best answer. Data such as the current wiring configuration (series or parallel) volts, amps and wattages of the current and the proposed panels. In the meantime consider that your current charge controller can only put out ~360watts of solar (24 volts x 15 amps) but more solar than that will not damage it as long as you don't series the modules past 75v.
I do not think you will find today panels that would work with your 16 year old ones.
I had a problem finding panel to ad to my year old installation. :)
I would suggest to add new panels with its own new MPPT controller.
You can add new panels on a separate MPPT without any problems as long as you don't exceed the charge current for your battery.
