A According to research conducted at experiment farm Cimanglid village using pilot scale bioreactor. The pilot scales made from fiberglass with 1100 L volumes, 930 L fermentation volumes, supplementary feed variation ratio of water and cow excess are of 1:1 and 1:2, hydraulic residence time of 30 days and 45day, (Duplo samples).Digester temperature ranges between 24-300C and pH 6.4-7.9. The highest percentage outputs of sludge removal from bioreactor process are 34% of TSS, 47%, of VS, and 79% of COD. The ratio of BOD5/COD is 0.45 by 45 days of hydraulic residence time, supplementary feed variation ratio of water and cow excess is 1:2. The research data is used for basic planning of reactor biogas, intended for11villagehouseholds. Based on calculations of biogas for energy demand of electricity and cooking is 14.6 m3, this calculation from 25 cows and assumption each of cow produce 15kg of excess waste. For further energy development, the biogas reactor has been designed to accommodate excess waste of 40 cows which produce 24 m3 from 14.6 m3 of biogas energy demand .The treatment facility of cow excess waste consists of mixer unit, biogas reactor, and sludge drying bed, reservoir gas volume of 3.03 m3, 39.8 m3, 12.3 m3 and 61.2 m3 (2units).