Biogas, produced through the anaerobic digestion of organic matter, is an environmentally friendly energy source that contributes to climate change mitigation and poverty reduction. This study evaluates the technical and operational feasibility of a domestic biogas system installed in Ghorahi-16, Dang, Nepal. The plant primarily utilizes cow and buffalo manure, kitchen waste, and black water from human waste as feedstock. The research examines the availability of raw materials, installed components, and annual production trends. Results indicate that locally available feedstock is insufficient for sustainable operation, limiting production capacity. The study also outlines the advantages and disadvantages of biogas utilization in local communities and highlights its potential role in enhancing energy security and sustainability. Physical and chemical parameters of feedstock, including the carbon-to-nitrogen (C/N) ratio and pH, were analyzed to assess biogas yield potential. The findings suggest that improved feedstock management and optimized operational conditions are essential for achieving long-term efficiency and sustainability of biogas plants in rural Nepal.