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One fact for kids about solar energy is that it is energy harvested from the sun. When the sun's rays, also known as solar radiation, reach the Earth, the energy is converted using appropriate technology into heat and el... More »

www.reference.com Science Physics Electricity

Solar power can be used to heat water and other fluids as well as buildings. Solar cells, also known as photovoltaic cells, convert the energy of light into electricity and are used to power everything from buildings to ... More »

www.reference.com Education K-12

Solar energy has been used by humans for 2,700 years. Originally, glass lenses were used to make fire with the sun's rays. According to the U.S. Energy Information Administration, the first recorded use of a solar therma... More »

www.reference.com Science Physics Thermodynamics
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Solar energy comes from the sun, but the energy the sun emits comes from nuclear fusion on a massive scale. Specifically, it is the fusion of two hydrogen atoms into a single atom of helium. More »

www.reference.com Science Physics Electricity

Some of the benefits of using solar panels for energy generation include the fact that solar energy is a renewable resource, the abundance of solar energy that reaches the earth and reduced electric costs. Negatives of u... More »

www.reference.com Science Environmental Science Sustainability

While solar energy has many positive features, there are also disadvantages which include the hazardous waste released due to damaged solar panels or improper disposal of the panels. Other disadvantages include the amoun... More »

www.reference.com Science Physics Electricity

Solar cells work by collecting sunlight and converting it to usable energy. This energy can be used onsite or transported short distances to the local power grid. A typical modern solar cell consists of a transparent pro... More »

www.reference.com Science Physics Electricity