The Rhône-Auvergne Delegation of the CNRS is part of an eco-responsibility approach to limit electricity consumption. Photovoltaic panels have been installed on the roof of the VIRGO building in which the Laboratoire des Matériaux Avancés is housed. For the very first time, the Technical and Logistics Department of the Rhône Auvergne delegation of the CNRS carried out the installation work for these panels on a building in its real estate holdings.