Hi there! Semi-permanent solar overland setups need specific equipment to run smoothly: solar panels, a charge controller, a battery, an inverter, and a fuse box. If you want a more complicated setup, you can add battery monitors to keep an eye on how effective the system is. It’s best to use lithium batteries. Another point is paying attention to how much power production you will need. You can calculate how much energy your car uses daily, which will tell you how much power your solar panels should supply. I’m not sure if I’m explaining this clearly, but you can check
Yenex - Discover Distributed Energy for helpful advice.