ENERGY ALTERNATIVES: RENEWABLE
ENERGY AND ENERGY CONSERVATION
TECHNOLOGIES
BIOENERGY
Biomass refers to solid carbonaceous material derived from
plants and animals. These include the residues of agriculture
and forestry, animal wastes and wastes from food processing
operations. A small amount of solar energy is used by plants
in the process of photosynthesis and this trapped energy can
be used in various ways. Wood and grass can be dried and then
burnt to release heat. Plant material, particularly those
rich in starches and sugars such as sugar-cane, wheat, etc.,
can be fermented to produce ethanol. Alternately, methanol
can be produced by the distillation of biomass which contains
considerable amount of cellulose such as wood and bagasse
(residue from sugar-cane). Both these alcohols can be used to
fuel vehicles and machinery, and can be mixed with petrol to
make a petrol / alcohol blend. Although biomass energy is
predominantly used in rural areas, it provides an important
fuel source for the urban poor and many rural small and
medium scale industries. In order to meet the growing demand
for energy, it is imperative to focus on efficient production
and use of biomass energy to meet both traditional (as a heat
supplier) and modern fuel requirements (like electricity and
liquid fuels). This production of biomass, in all its forms
for fuel,food and fodder, demands environmentally sustainable
land use and integrated planning approaches.
Detailed planning would be required from National to State,
District,Taluk and Village levels.The inappropriate selection
and site matching of species or management strategies can
have adverse effects and lead to degradation and abandonment
of land. However, the correct selection of plant species can
allow the economic production of energy crops in areas
previously capable of only low plant productivities.
Simultaneously multiple benefits may accrue to the environment.
Such selection strategies allows synergistic increases in
food crop yield and decreases fertiliser applications, while
providing local source of energy and employment.
Present Role of Bioenergy
Techno-Economic Analyses of Bioenergy Systems
Fuel Efficient Stoves
Biogas Technology
Energy Plantations
Biomass Fried Steam Power Generation System
Wood Gasification
Wood Gasifier Based Electricity System
Draught Animal Power (DAP)