Expect a national average range of $15,000 to $150,000 depending on whether the system replaces a whole roof or only covers portions for electricity generation. . Tile hooks offer the most cost-effective solution with 15-20% premium over standard installations, while comp-out methods provide superior aesthetics and waterproofing at 25-35% higher costs. Concrete Tiles Are Ideal for Solar Longevity: Concrete tile roofs perfectly match solar panel lifespans. . Real costs generally range from $15 to $35 per square foot, or $3. 00 per watt, which would mean total installation costs of $25,000 to more than $70,000 for a standard-sized home. Your roof's size and complexity play a significant role, as larger or more intricate roofs require more materials and labor. Let's explore the unique challenges of installing solar panels on tile roofs and the best methods to do it safely and. . Will installing a solar panel on tile roof damage or break my existing tiles? It's a valid fear, but professional installers use specialized tools and mounting systems designed to lift, not shatter, the tiles.