A Simple 12 V Marine Application

Here's an example of a relatively simple marine application on an older boat ('79). In this case, there are two 175w used solar panels mounted with some simple hardware to the rails of the dodger. The panels are connected in series, then pass through a cable gland, and into the boat. There they go through a breaker so the solar can be disconnected from the rest of the system if you need to work on it. The other side of the breakers is connected to the MPPT controller, which was chosen because the DC input voltage can accommodate the Voc of the panels in series and the current produced.

The batteries are fused at the terminal and connected to the controller. The DC output from the controller than goes to a fused busbar panel where all of the new 12v systems can be connected.

The DC power is also then connected to a 12V 5kw/10kw (burst) inverter which powers an induction stove (neither shown below).