The higher priority has been given for the use of biogas energy in Nepal .Give two reasons
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Around the world, 3.2 billion people lack access to modern methods of heating. While cooking over open fires is damaging to health and to the environment, biogas provides a viable, sustainable alternative.
Many countries in the world lack the infrastructure needed to provide populations in remote regions with heat and light. For half the world's population, meals are cooked on an open fire fueled by wood, coal, dung, and other smoke-producing combustibles. This not only adversely affects the health of rural populations, it also consumes large amounts of fuel and releases high levels of carbon dioxide.Now, however, there is an alternative.
These days, biogas plants are providing a mainstream renewable energy solution in rural Nepal, allowing people to produce methane by fermenting human and animal waste. Biogas units provide a cleaner and safer source of energy, enabling rural families to produce their own electricity, heat, and fertilizer.Now, however, there is an alternative.
These days, biogas plants are providing a mainstream renewable energy solution in rural Nepal, allowing people to produce methane by fermenting human and animal waste. Biogas units provide a cleaner and safer source of energy, enabling rural families to produce their own electricity, heat, and fertilizer.One advantage of these plants is that they can be used in exactly the place they're needed, thereby averting the need for extensive, costly power landlines. They are easy to assemble, user-friendly, and depend on nothing more than fuel naturally supplied by domestic waste.
In developing countries, domestic biogas plants are used first and foremost to meet the immediate needs of rural populations in regions without infrastructure.
It's an efficient principle, says Andreas Michel, energy expert with the German Technical Cooperation (GTZ). "The dung produced by two or three cows per day is sufficient to make enought methane gas for five hours of cooking or light," he explains. In recent years, the GTZ has helped fund the installaton of several hundred biogas plants in developing countries such as Bolivia and Rwanda. The nations with the highest number of biogas plants are China, Botswana and India.
According to GTZ research, domestic biogas plants represent the optimal application of biogas production systems. Although larger plants can generate enough electricity to supply entire villages - and are usually installed within existing farms, where a steady supply of biomass can be guaranteed - the benefit of domestic plants in terms of cooking and heating are more significant.
The WWF is currently co-funding the installation of 7,500 biogas methane generators in individual households in Nepal. It estimates that each unit can help save an average 4.5 tonnes of firewood and therefore almost four tonnes of CO2 emmissions per year. As Andreas Michel explains, health improves as a result of less particulate matter in the indoor air. A further benefit is that the slurry generated during production can be used as fertilizer for the fields.
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Producing biogas gives many advantages for the environment, companies and people involved. The advantages are: Biogas is a green energy source in form of electricity and heat for the local grid. Considerable environmental advantages - less emission of the greenhouse gasses methane, CO2 and nitrous oxide.