Tags: solar photovoltaic systems solar thermal solar water heaters solar home lighting renewable energy bio mass emission reduction wind generator electrical bikes
Solar photovoltaic systems and wind turbines are two of the most commonly know sources of renewable energy. Other renewable energy sources are bio mass, human and animal power and solar thermal systems.
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Related video: Renewable energy
Source: Exploring Alternatives; Airang Television
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,verification report on solar home light systems_en7_m.jpg "Voluntary Emission Reduction")
