With the advent of an industrial society based on abundant energy from fossil resources, the relationship between society and solar energy has changed profoundly. From being an indispensable, unavoidable resource, via wind and water power or biomass from photosynthesis, it has become secondary, giving humanity the illusion of having definitively freed itself from the constraints of nature and its so-called wild energies. With the climate crisis and the depletion of fossil fuels, we have to come back to reality and find urgent solutions. Solar energy and the renewable energies that derive from it are once again becoming a recourse, especially since new, highly efficient forms of transformation have been developed with photovoltaics and wind power, and whose potential is sufficient to make a decisive contribution to the energy transition. However, renewable energies are still widely decried and are often denied. Beyond the scientific and technological issues, there is a deeper cultural and philosophical question here, which concerns society's present and future relationship with solar energy and nature in general. Will society evolve towards a harmonious and ethical use of solar energy, based on scientific and technological progress, or will it still be slow to commit itself to this path? The objective of the conference, in a context marked by very lively debates on the future of energy, is to encourage reflection on the place of solar energy in society in the future, by associating the scientific, technological and economic aspects with the societal, environmental and cultural aspects that will be at the heart of the success of future developments in our urban environments and our living environments.