Romain Guillaume Billy

Romain Guillaume Billy is a Researcher in the Industrial Ecology Program at NTNU's Department of Energy and Process Engineering. His work focuses on Material Flow Analysis (MFA) and Stock Dynamics modeling to study metal cycles and emissions, particularly aluminum and battery materials. He holds a PhD in Industrial Ecology from NTNU (2022), an MSc in Industrial Ecology (NTNU), and an MSc in Engineering from École Centrale de Nantes.

His research explores the interplay between metals and society, including projects like Metal Production (SFI) and BATMAN, which developed scenarios for battery material supply and recycling. He teaches courses on Material Flow Analysis and Built Environment Systems modeling (TEP 4285/4290). His work addresses systemic challenges in recycling, emissions, and resource constraints linked to electrification and energy transition.

Key research themes include aluminum lifecycle impacts, lithium-ion battery sustainability, and urban material cycles. Recent publications analyze graphite/nickel supply limitations, low-carbon aluminum transitions, and plastic pollution in coastal regions. He collaborates on interdisciplinary projects like EU Battery Regulation strategies and carbon-neutral building pathways. His contributions bridge academic research with policy-oriented insights for sustainable resource management.