Bioenergy
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Bioenergy is renewable energy made available from materials derived from biological sources. In its most narrow sense it is a synonym to biofuel, fuel derived from biological sources. In its broader sense it encompasses also biomass, the biological material used as a biofuel, as well as the social, economic, scientific and technical fields associated with using biological sources for energy. There is a slight tendency of the word bioenergy being favoured in Europe compared to biofuel in North America. An another sense is the "bioenergy healing" that means healing with human internal energy via the human energetical field, called also chakra healing.