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How Solar Roofing Works

The 'Short' version: Sunlight will hit the Photovoltaic cell (PV cell) which is made of semiconductors, such as silicon. The sunlight will then be absorbed by the PV cell which forces the usable electrons from the sunlight out of the cell into a current which we can use or store as energy.

The 'Long' version: Here's a link to our very, VERY smart friends at NASA.