solar energy
US /ˈsoʊ.lər ˈen.ər.dʒi/
UK /ˈsoʊ.lər ˈen.ər.dʒi/
1.
radiant energy emitted by the sun, converted into heat or electricity.
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Many homes now use solar energy to heat water.
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Investing in solar energy is crucial for a sustainable future.