Understanding the process is key for planning its installation on your roof. Before you begin the solar installation process, it is important to prepare your home and ensure everything is ready for a. . Installing solar panels on your roof can both save you energy costs and reduce your home's environmental impact. The short answer? It absolutely does. Over the 25-to-30-year lifespan of a standard system, a typical homeowner can save upwards of $50,000. Why install Solar Panels on Your Roof?. Replacing an old roof before installation saves $2,000-$5,000 compared to removing and reinstalling panels later. Installing solar panels isn't as complicated as it might seem, and with the right guidance, you can make it a smooth and rewarding process. Whether you're a DIY enthusiast or just. .