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The sun is an incredibly effective source of power. It is both cheap and clean, and does not cause pollution. One way to harness the power of the sun is through the use of solar panels. These panels can be installed on the roof of a house to receive energy from the sun. The energy can then be stored for a number of days, making it available for use even on cloudy days. By using solar energy instead of gas, oil, or coal, we can save natural resources. As a result, many countries around the world are already using solar energy as a sustainable and environmentally-friendly alternative source of power.