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Solar Panel installation vs. Solar Shingles. The major difference between solar roof shingles and solar panels is in the installation process. Installers usually need to bolt solar panels onto the roof, which requires drilling through the roof and can violate its warranty.
There are a number of different tax incentives for home conversion to solar power, though, so the true cost of installation can be much lower. However, the total cost for solar shingles is still higher than that for solar panels.