[en] This report describes and discusses the perspectives of evolution and innovation for three great issues related to renewable energies. The first one is waste methanization, and the report addresses the following topics: practice in France, characterization of organic wastes, quick prediction of the potential associated with solid wastes, integration of methanization within an existing sector, local implantation of methanization, towards the methanization of sewage sludges, for a better management of digestates, the issue of renewability of our wastes, the optimization of microbial processes of waste degradation, analysis of methanization life cycle). The second issue is the use of wood as energy source: quantities, cartography of forest biomass by remote sensing, cartography of exploitability in mountain forests, organisation of a wood-energy supply, cartography of clear cuts, impacts of wood crops on insects, producing more wood while better preserving biodiversity, wood-energy governance. Thirdly, the report addresses issues of energy savings and impacts: energy optimization for agricultural machinery, relationship between irrigation and energy saving, energy saving by energy storage, nebulisation applied to refrigeration equipment, high thermal inertia applied to domestic refrigerators, works and downstream migration of eel, dam hydraulic management and fish population dynamics, reduction of environmental print at work

[en] The forest-based sector, like the regions where it is a symbolic feature, is currently central to challenges that are not only specifically national but also of a global nature. As a major carbon sink that is currently affected by climate change, forests are acknowledged as supplying a large number of products and services. Both economically and socially important - representing a turnover of euros 60 billion and 440,000 direct and indirect jobs -, the 14. ranking strategic industrial sector in France remains vulnerable, with a marked trade deficit of around euros 1 billion per year for timber alone, and nearly euros 5.5 billion per year if the imported materials used by the furniture, paper and board sectors are added. Faced with these challenges, support for the competitiveness of the forest-based sector, and improvements to its global, economic, environmental and social performance, necessitate a reinforcement of the research-development innovation (RDI) continuum. Work on this assignment combined various pre-existing sources (studies by the National Forest Wood Programme (PNFB) and the Strategic Committee for Forestry and Wood Sector (CSFB)), with individual or collective consultations with different actors in the sector. This approach generated two series of proposals: - 13 RDI projects grouped according to three central and complementary priorities: (a) to improve performance in all parts of the sector through systemic approaches, (b) to develop uses for wood in a future bio-economic context, and (c) to adapt forests and prepare forest resources for the future; - an analysis of RDI mechanisms and funding instruments in the sector, supplemented by recommendations: (a) mapping of these mechanisms, and (b) the characterisation and development of innovative funding modes