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Solar EnergyThe energy of the sun can provide heat, light, hot water and electricity, and even cool your home. Scientists know how to convert sunlight directly into electricity by using devices called photovoltaic cells. Small cells power watches and calculators, while large ones can create enough electricity for entire homes and businesses, and can even supply electricity to the electric grid of an entire town. The sun can also heat water or air directly using solar heaters. Solar heaters can be installed in most homes and are a great way of providing heating and hot water using a renewable energy source. They can also be used to provide backup or auxiliary power in buildings. Solar panels, also known as photovoltaic panels, can be costly to buy and install, but the long-term savings can help to reduce these costs.
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