by Gil Knier   back to the Science@NASA story “The Edge of Sunshine” What is Photovoltaics? Photovoltaics is the direct conversion of light into electricity at the atomic level. Some materials exhibit a property known as the photoelectric effect that causes them to absorb photons of light and release electrons. When these free electrons are…

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  Overview: Solar panels contain cells of semiconductive material, usually silicon When subject to sunlight, an electric charge is created due to the photoelectric effect (more below) The solar energy feeds into your system’s solar inverter(s) The inverter(s) changes the energy to a usable state, matching the frequency of the utility grid Below, we’ll break…

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Have you ever looked at the solar panels on roofs and wondered exactly what they do, and how?  Well, those hi-tech expanses of shimmering glass are actually just one component in a complex network that harnesses the sun’s renewable energy to deliver electricity to the home within. Let’s take a simple, step-by-step look at how…

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