As part of a program to modernize and bring schools up to standard, the Departmental Council of Cantal wishes to renovate the Val de Cère college in Laroquebrou to improve the energy performance of the premises and improve the quality of life of users of these premises. This operation shall be carried out in accordance with the following principles and objectives: · Achieve energy efficiency at the BBC renovation level (reduction in final energy consumption of at least 40% compared to a reference year after or equal to 2010). · Improve the thermal comfort of the premises for the well-being of users, especially middle school students. · Optimize operating and operating costs through the implementation of cost-effective technical solutions.