Currently the Indonesian government is implementing the renewable energy program as a raw material for energy substituting for fossil energy. The government is intensifying the development of biomass-based power plants. Bamboo can be the right choice to become the raw material for PLTBm (Biomass Power Plant). Madobag village bamboo in Mentawai island is very easy to plant and can grow very well, so to build a bamboo PLTBm in Madobag village is the right choice. Currently the condition of electricity in madobag village is very lacking because the electricity supply can only be a maximum of 10 hours per day and the electricity supply comes from diesel-fueled generators so that the continuity of electricity supply for Madobag village is not sustainable, therefore, renewable energy sources can contribute to a sustainability electricity generation system.