That depends on what you have already installed in your RV and which solar kit you choose. In our selection, we’ve specified what exactly is included and what you’ll need. If you are new to off-grid electricity and solar power, you might have to get a complete set. If you have a power inverter and batteries already, just panels or a smaller set will be sufficient. Additional accessories needed could as well be a switching kit to ease going back and forth between solar and shore power.