The most common alternative energy sources, Renewable energy is a commonly used term these days, so let's find out what the most common alternative energy sources are all about.
Renewable energy | department of energy, Learn how the energy department's investments in clean, renewable energy technologies -- including wind, solar and geothermal sources -- are helping strengthen the
Renewable energy - wikipedia, the free encyclopedia, Renewable energy flows involve natural phenomena such as sunlight, wind, tides, plant growth, and geothermal heat, as the international energy agency explains: 
Alternative energy sources - humans, body, used, water, Alternative energy is energy provided from sources other than the three fossil fuels: coal, oil, and natural gas. alternative sources of energy include
Energy sources | department of energy, Learn more about america’s energy sources: fossil, nuclear, renewables and electricity.
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