Photovoltaic Cells

Picture: DOE/EERE Photovoltaic cells (PVs) (also known as “solar cells”) work by transforming light that comes from the sun directly into electricity without an intermediate mechanical device or thermal process. The term photovoltaic…

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Solar Heating Systems

Solar heating can be used to heat the space in homes and buildings or to heat the water. There are two basic types of solar heating systems: passive solar heating and active solar…

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Passive Solar, Active Solar and Photovoltaics

There are three different ways to harness the sun’s energy: passive solar, using architectural design and natural materials to absorb the sun’s energy; active solar, utilizing the sun’s heat by means of solar…

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Solar Energy: from Sun to Earth

It takes millions of years for the energy in the sun’s core to make its way to the solar surface, and then just a little over eight minutes to travel the 93 million…

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What Does Solar Energy Mean and How It is Generate?

Let’s begin with some basic information about solar energy. Solar energy is one of the three main renewable sources of energy along with hidropower and wind energy. The word “Solar” is the Latin…

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