This review presents a comprehensive summary of solar assisted biomass gasification, including concentrating solar technology, fundamentals of solar biomass gasification, state-of-the-art solar gasifier designs, strategies for solar intermittence management, and downstream. . This review presents a comprehensive summary of solar assisted biomass gasification, including concentrating solar technology, fundamentals of solar biomass gasification, state-of-the-art solar gasifier designs, strategies for solar intermittence management, and downstream. . A solar-and-biomass bi-source nexus is introduced to provide a promising and sustainable approach for the synthetics of cogeneration of electrical power, fuels and cooling & heating. Biomass/waste as a promising carbonaceous feedstock could be an appropriate candidate due to its combustible form. . Solar assisted biomass gasification is a promising pathway to produce solar fuels. Catalysts are a potential pathway for enhancing the performance of gasification technologies; however, traditional catalytic methods still focus on improving the performance of. . Gasification is the reaction of carbonaceous waste with a gasifying agent (oxygen and/or steam) at temperatures ranging from 700 °C to 1600 °C, in partially oxidizing conditions (below stoichiometric oxygen level) to produce a fuel gas called syngas, which is a mixture of CO and H2. The syngas can. . Received 10th April 2025, Accepted 20th July 2025 The paper presents a comprehensive overview of the latest biomass gasification technologies discussing various configurations like fixed bed, entrained-flow, and fluidized-bed gasifiers along with advanced systems like plasma, multistage biomass. . Solar energy enhances the energy and environmental performance of coal gasification by lowering carbon emissions and increasing the yield and quality of synthesis gas. This patent review surveys recent global advances in solar thermochemical reactors for coal gasification, focusing on key. .