Recently, climate change has attracted significant intension globally. Accordingly, numerous initiatives are under action for reducing the consumption of fossil fuels and increasing the share of renewable energy sources. This research work proposes an eco-friendly and sustainable electrical power system that could fully or partially fulfill requirements of the local load of the system under concern. The proposed power has the merit of utilizing topography of the site under concern, Al- Jabal Al-Gharbi district, Libya, to exploit the locally available resources such as biomass and sewage plants. The availability of resources was first studied, concluding that 110.87 × 10⁶ m³⁄year are available for generating biogas and electricity. Moreover, biogas is extracted from biomass fermentation plants with a capacity of 244,845 tons/year produced from agricultural, municipality organic, livestock, and sewage residues in the …