Yes, you can buy solar panels and install them yourself — DIY solar is legal and increasingly popular among homeowners looking to cut costs and take control. DIY saves money on labor — professional installation typically adds $0. Join over 8,000 people who received a free, no obligation quote in the last 30 days. However. A growing number of homeowners are considering a do-it-yourself (DIY) approach to installing photovoltaic solar panels, driven by the desire for energy independence and substantial cost savings. Most homeowners save around $60,000 over 25 years Smaller off-grid systems for things like RVs, vans, and boats are best for DIY solar panels.