This comprehensive guide is designed to demystify the process, walking you through every step of building an off-grid solar system. From understanding basic electrical principles to selecting components, designing your system, and maintaining it for years to come, we have it all. Identifying optimal locations influenced by sunlight exposure, 2. Integrating systems. . Power Kits offer you a safe, 48V power solution for your off-grid home. A 48V system produces the same amount of power, but unlike 12Vs, only a quarter of the electric current passes through thinner wires, producing significantly less heat and power loss. Before picking parts, figure out how much energy you use and will use. First, assess your campsite's energy needs—think about what you want to power, like LED lights, phones, or a mini fridge.