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This research aims to promote the sustainable utilization of locally available, environmentally friendly resources, making a substantial contribution to both mitigating global warming and fulfilling future energy needs. Hybrid renewable energy systems have demonstrated superior stability and reliability compared to single-source systems, all while operating at minimal costs. This paper provides an overview of various hybrid renewable energy systems employed for electricity generation. It underscores that in hot regions, despite high solar radiation, solar PV systems experience reduced electrical yield due to elevated solar cell temperatures beyond the recommended range, especially in summer. In such areas, leveraging solar thermal applications and abundant biomass energy from extensive agricultural activities is preferable. What sets this study apart is its innovative approach: replacing conventional hybrid systems, like PV, wind, diesel generators, and batteries, with a Stirling engine powered by dish solar concentrators, which offer high efficiency and cost-effectiveness. The proposed Hybrid Renewable Energy System (HRES), consisting of a parabolic dish solar concentrator and Biomass Digester (PDSC/BG), transforms challenges into opportunities. It provides the community with a sustainable source of electricity, heating, and cooking gas, simultaneously addressing the region's waste management issues. The system is evaluated at Brack City, Libya, and comprises a 36,560 m3 biomass digester that produces 27 Mm3 annually, a 1230 kW Stirling generator, and a 6006 m2 PDSC collector area. The system will add 5,670,534 kWh of energy to the grid yearly, with a peak load capacity of 1230 kWh and a coverage of 5,892,666 kWh. The system's technical and economical viability is evaluated using SAM software. The project has a 20.04-year payback period, an estimated capital cost of $12,365,896, and an LCOE of $0.075/kWh. Annual CO 2 emissions will be reduced by 7.8 kton as a result of the project. • Introduce a novel off-grid hybrid system design. • Substitute storage with a more reliable, cost-effective biomass gasification source. • Utilize a single Stirling engine for both technologies to reduce capital investment and lower LCOE. • Evaluate the energy, economic, and environmental effects of the proposed system. • Assess biomass impact on different sizes of hybrid renewable energy systems (HRES). [ABSTRACT FROM AUTHOR]