The article highlights the increasing support for biogas and green hydrogen as crucial energy vectors in accelerating the transition towards cleaner energy systems. Biogas, derived from organic waste, offers benefits like reducing greenhouse gas emissions, waste valorization, and rural job creation. Green hydrogen, produced through water electrolysis, is a zero-emission option with applications in various sectors, including sustainable mobility and industrial processes. Despite facing challenges like production costs and regulatory needs, both biogas and green hydrogen show promise in integrating into existing energy infrastructures and fostering energy autonomy. The article emphasizes the importance of multi-actor cooperation, stable regulations, and technological advancements for the successful deployment of these energy vectors. Overall, the synergies between biogas and green hydrogen present an opportunity to decarbonize territories, enhance air quality, reduce fossil fuel dependency, and foster a circular, inclusive, and resilient economy in the face of climate challenges.