Solar connections for 12vdc houseboat sys...

Hi,

Based on your post/description, I would suggest that:
1. There is no need to install a diode from the boat motor alternator since most current design used electronic regulators with built-in diodes. The output of the alternator therefore could go straight to the battery or a switch (*selecting battery 1 or 2);
2. It would probably be safer that you would install a diode after a portable generator since some design do not need/use internal rectification but are connected straight to the windings/coil;
3. There is no need to install diode after each solar panel.

To my understanding the Plasmatronics have built-in in-line diodes to its inputs/outputs (unless otherwise required such as with the "Catch Diode protection" across the load). Additionally, unlike in some other system, a PL-20 would require that the negatives not be tied to a common ground. The PL-20 is relatively a straight forward connection (it's the programming that is a challenge).

Hope this be of help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Tight lines.