1.Solar power, solar energy, renewable energy, nuclear power, clean energy, coal,...
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2,Solar energy is convenient and abundant but sometimes they are not available.
3,In Vietnam, people use both non-renewable energy sources like coal, oil, natural gas and renewable ones like hydro and solar power. Vietnam still relies mostly on non-renewable energy resources. However, hydro power is increasingly used. In some areas, people also use solar power to heat water and biogas is used for cooking.