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close this section of the library09 Energy and Energy Conservation
open this section of the library and view contents09.01 Renewable Energy (bio-mass, biogas, alcohol, hydropower, solar energy, wind energy)
open this section of the library and view contents09.02 Conventional Energy (oil, petroleum, coal, natural gas, peat, nuclear energy)
open this section of the library and view contents09.03 Energy Conservation (architecture, fuel-saving cookstoves)
open this section of the library and view contents09.04 Transformation, distribution and storage of energy
open this section of the library and view contents09.05 New Energy sources and Research
open this section of the library and view contents09.06 Energy, Transport and Environment