Rémi Bougault presents the energy challenges of tomorrow Rémi Bougault, research director at the CNRS in Caen, hosted a conference on energy on a Saturday. Its objective was to provide data and comparisons allowing everyone to form an opinion on the issues of the following forty years. The meeting began with an inventory of consumption, needs and production. Fossil fuels, nuclear and renewables were examined with their advantages and disadvantages. The speaker relied in particular on the Court of Auditors' figures on production costs in France and on comparisons of volumes produced. He also addressed the need to control greenhouse gas emissions and the links between energy production and CO2 emissions. Several received ideas were discussed, in particular on the energy consumption of agriculture and the carbon neutrality of wind and photovoltaics. Finally, Rémi Bougault presented ways to reduce consumption, such as turning off devices left on standby. Reconstructed or uncertain passages: - The handwritten annotation indicates Ouest France, 20/3/12, while the name of the file mentions March 16. The text only says that the conference took place on a Saturday; no session date is invented. The passage on received ideas does not make it possible to assign a detailed conclusion to each sector: the rewriting preserves the themes discussed. Archive image: https://vierville.cordelle.eu/PhDoc16/2012-Mars16%20ConfBougault-OF.jpg