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[en] The thermal solar energy production is a promising and strongly growing sector. However, these technologies must be integrated to electric power systems, i.e. coupled with fossil-fired or biomass-fired plants, and the energy must be stored. This production can be either centralised or decentralised: this corresponds to different situations, different markets, different technologies and equipment (rows of mirrors to concentrate solar heat on a tube, linear Fresnel reflectors to concentrate solar heat on a tube, heliostats or mirrors which concentrate heat at the top of a tower, and parabolic disks which produce electricity with a Stirling gas engine at their focal point). This road-map focuses on electric power generation, and discusses key variables of the present market, proposes a vision for 2050, identifies objectives to be reached by 2015, and barriers to be removed, outlines the needs of demonstrators and their administrative framework.
[en] Power Point presentations address the following topics: Thermodynamic solar realisations in France and the convergence of solar and biomass (competitiveness of thermal solar energy); Perspectives for photovoltaic solar energy (development logics for a subsidised market, identification of risks and limitations); The European and national support to photovoltaic to supply the planet with solar electricity (PV potential and competitiveness, benefits for the society); the solar prospective (resources, present situation, prospective by 2050 according to the IAE, thermal solar, photovoltaic solar, concentrated solar power); The DESERTEC concept for energy, water and climate security or 10.000 solar GW clean power from deserts in the world; The Mediterranean solar Plan (objectives of the action plan and of the road-map for 2011-2020; Status of technologies and innovations in photovoltaic conversion of solar energy (the solar resource, the different photovoltaic technologies and sectors, perspectives); An analysis of PV resource in residential areas by means of aerial photo images; Soil use by agriculture and consequences for climate (recalls on physics of relationship between plants and climate, evidence of the direct impact of agriculture on climate with the decision to move some crops southwards in Florida, example of modelling of the impact of crops on climate through a comparison between meadows and crops, experiment of the impact of a change in soil use, proof of the indirect impact of agriculture on climate); Constraints, resources and innovations in plant productions; Abatement costs, regulation and prospective aspects for CO2 emissions by the agriculture sector; Impact of growing methods on climate (contributions of different gases to the greenhouse effect, share of agriculture in greenhouse gas emissions; reduction of CH4, NO2 and CO2 emissions, carbon storage); Greenhouse gas emissions in farming practices; The effects of climate change on agriculture (evolution of possibilities of crop location, influence of climate change on crop efficiency)