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Renewable energy

Renewable energy comes from resources which are naturally replenished. These sources include the sun, wind, rain, tides, and geothermal heat. According to the 2007 Global Status Report, 18% of global final energy consumption came from such sources in 2006.

Solar energy is a source of renewable energy which is harnessed through the use solar panels. These can convert sunlight into electricity either directly or indirectly, through photovoltaic or solar thermal methods respectively. Wind energy is another renewable source which is harnessed through the use of wind turbines.

Renewable energy sources are considered sustainable in the sense that these resources are capable of remaining balanced. However, this doesn’t mean that sustainability comes inherently. Especially in the cases of biomass and geothermal energy, there is the necessity of wise energy management.

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