Learn how to install solar panels step-by-step. This comprehensive guide covers site assessment, mounting, wiring, and inverter setup for residential solar systems. . Setting up a solar panel system sounds simple—bolt some panels onto the roof, plug everything in, and enjoy free electricity forever. Small off-grid setups like RV, cabin, or shed systems are totally doable for a weekend DIY project. You can install solar panels to. . But before you get ahead of yourself, you should know that switching to solar energy takes a few key steps. Fortunately, it's not as complicated as it may seem.