A single solar panel costs between $120-$315 for the equipment only, or $1,000-$1,200 when professionally installed. System purchases offer dramatic savings: Buying panels as part of a complete solar system costs 40-65% less per panel ($0. 50/watt) compared to individual retail purchases ($0. Your actual cost depends on your home's energy needs, roof characteristics, location and other factors, all of which we'll break down in. However, total project costs including installation typically reach $1,500-$2,000 for a single panel. " } }, { "@type": "Question", "name": "Is it cheaper to buy solar panels individually or as a system?", "acceptedAnswer": { "@type": "Answer", "text": "Complete systems are significantly cheaper per. How much do solar panels cost on average? As of 2026, the average cost of residential solar panels in the U. This typically translates to about $2. 50 per watt of installed capacity (more on price per watt below). Department of. When starting research, most homeowners begin by asking the simplest question: how much does one solar panel cost? It seems straightforward, but the answer is anything but.