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DIY Off-Grid Solar Electrical System

Updated: Dec 13, 2020

Below is a guide along with a schematic of how to build your own camper van off-grid solar electrical system. We've also included some handy tools to help get the job done. This set up is for the person who is taking on their own van build and is a looking for a very reliable system to get started with. All products, tools, and materials are linked below and you can reference the illustration to visualize how it's all connected together. While this guide is free, we do ask that you use the links provided to purchase everything since we are an affiliate partner and get a small kickback as compensation.


Disclaimer: We are not professional electricians so please consult with one if you feel unsafe or uncertain. This guide will not go over any technical terminology nor will it go into the concepts of electricity and solar energy. There are MANY incredible resources out there already if you're interested in learning more before taking on a DIY install. We also strongly encourage you to read all user manuals that come with the equipment. If you have questions about what is presented here, please don't hesitate to reach out through our contact us form and we'll get back to you as soon as possible.


Overview: This off-grid electrical system is 200 watts of solar power that is connected to a 30 amp charger controller that regulates the electricity to a 100 amp hour lithium battery. A 2000 watt inverter allows you to run a wide range of 120v/AC appliances. It also has a 20 amp DC-DC battery charger that runs off your vehicles alternator so you can charge your lithium house battery while you're driving. This system a great starting point because it will supply enough electrical energy to run a lot of different low power draw items but it also can be expanded quite easily down the road.



Interactive Wiring Diagram. Click on the red circles to display the component.



All products, materials, and tools needed for this wiring diagram are linked below.

Product Image Description


Renogy 200 Watt 12 Volt Monocrystalline Solar Starter Kit w/ 40A Rover MPPT Charge Controller + MC4 Connectors +Tray Cable+ Mounting Z Brackets for RV, Boat



ABS Solar Double Cable Entry Gland