Evaluation of Energy Self-sufficient Village by Means of Emergy Indices

The Energy Self-Sufficient Village is one of the Indonesian government programs where one of the criteria is that every village has to be able to fulfil minimum of 60% of energy needs with renewable source of potential owned. Tegalweru is a village that has potential of the livestock sector and there are 6 installations of biogas management to utilize manure waste. The evaluation of the energy self-sufficient village was conducted using emergy analysis. The emergy analysis is applied in two different scenarios. The first is baseline scenario where is only 37 cattle owned by ten households are treated to produce biogas. The second scenario is the scenario to fulfil the 60% target of energy self-sufficient. The emergy analysis is done to calculate the value of four emergy indices, which are, EYR to measure the comparison of yield and input added to biogas system, EIR to measure the emergy input needed to treat 1 kg of manure, ELR to measure the load of the manure treatment on environment, and ESI to measure the sustainability of biogas management. Analysis of emission reduction is also done in this research to find out the best scenario to be implemented in Tegalweru Village.