In the community, the use of cow manure is just fertilizer. On this occasion the author said that this cow dung can be processed as best as possible to be used as the base material for biogas power plants. Cow manure is easily found in cattle farmers in the countryside. So the use of cow manure is not only for compost. In this final project report the author analyzes the efficiency of electrical energy produced by gas power plants and wind power plants. To find out the electricity that will be obtained from the plant. The purpose of analyzing this efficiency is so that readers can add insight into how the electricity produced in the generator is used in rural areas that are difficult or lack electricity supply from PLN.