Séminaire de l'INPHYNI: Sophie Bouchoule

C2N's infrastructure and research activities make it a major consumer of energy and resources. Some resources are rare or precious (e.g. helium, certain raw materials, water), while others are toxic or emit high levels of greenhouse gases (e.g. fluorinated gases). C2N's air-conditioning systems also consume a lot of energy. Still in 2022, over 55% of the electrical energy consumed by the building has been used to laboratories and cleanroom air-conditioning. How can we control our energy consumption, while maintaining the environmental parameters required for our micro-nanofabrication processes, materials development, and for the study of devices in our experimental rooms? This is the challenge we face. Following an introduction to the research facilities and their technical and physical operating principles, we will present an overview of the actions undertaken since 2021, trying to rationalize our energy consumption and reduce the carbon footprint of our building. We will illustrate the method and approach followed, and the main actions that have led to a reduction in the building’s gas consumption (-85%) and electricity consumption (-35%) over the last five years (*). We will share our experience and our future objectives. Even if the C2N building's equivalent greenhouse gas emissions have been halved since 2021, they remain significant, Although the greenhouse gas emissions from the C2N building have been halved since 2021, they remain significant, and other sources of emissions linked to our activities and research projects have to be considered.
(*) Year of reference 2019.