<P> Biogas production in Germany has developed rapidly over the last 20 years . The main reason is the legally created frameworks . Government support of renewable energy started in 1991 with the Electricity Feed - in Act (StrEG). This law guaranteed the producers of energy from renewable sources the feed into the public power grid, thus the power companies were forced to take all produced energy from independent private producers of green energy . In 2000 the Electricity Feed - in Act was replaced by the Renewable Energy Sources Act (EEG). This law even guaranteed a fixed compensation for the produced electric power over 20 years . The amount of around 8 ¢ / kWh gave farmers the opportunity to become energy suppliers and gain a further source of income . </P> <P> The German agricultural biogas production was given a further push in 2004 by implementing the so - called NawaRo - Bonus . This is a special payment given for the use of renewable resources, that is, energy crops . In 2007 the German government stressed its intention to invest further effort and support in improving the renewable energy supply to provide an answer on growing climate challenges and increasing oil prices by the' Integrated Climate and Energy Programme' . </P> <P> This continual trend of renewable energy promotion induces a number of challenges facing the management and organisation of renewable energy supply that has also several impacts on the biogas production . The first challenge to be noticed is the high area - consuming of the biogas electric power supply . In 2011 energy crops for biogas production consumed an area of circa 800,000 ha in Germany . This high demand of agricultural areas generates new competitions with the food industries that did not exist hitherto . Moreover, new industries and markets were created in predominately rural regions entailing different new players with an economic, political and civil background . Their influence and acting has to be governed to gain all advantages this new source of energy is offering . Finally biogas will furthermore play an important role in the German renewable energy supply if good governance is focused . </P> <P> Biogas in India has been traditionally based on dairy manure as feed stock and these "gobar" gas plants have been in operation for a long period of time, especially in rural India . In the last 2 - 3 decades, research organisations with a focus on rural energy security have enhanced the design of the systems resulting in newer efficient low cost designs such as the Deenabandhu model . </P>

Information of structure and function of biogas plant