Electricity access is closely linked to social equity and economic development of a society especially among the rural communities. In this study, we explore the feasibility and potential impacts of a renewable-based hybrid power system that provides clean and affordable electricity to a rural village in Sarawak state of Malaysia. Developed through a case study methodology, this work determines and analyses the potential of natural renewable resources for power generation purpose. According to the results from the resources estimation and surveys done, renewable-based hybrid power system with solar, wind, biomass and hydro has been designed using a techno-economic optimization tool-HOMER software. The improved system also outweighs the existing diesel-fuelled system by saving 37.6 tonnes of greenhouse gases emission and having 52% lower in COE (cost of energy) and NPC (net present cost) despite there is a 6% annual capacity shortage. Based on the existing socio-economic status and the feedback from local community towards power generation issues, potential benefit of renewable-based hybrid power system on achieving sustainability and improving living standard of local community have been accomplished.