AUTHOR=Granacher Julia , Schnidrig Jonas , Chuat Arthur , Lepour Dorsan , Terrier Cédric , Castro-Amoedo Rafael , Marechal Francois M. A. TITLE=Internal pricing in integrated energy system design JOURNAL=Frontiers in Energy Research VOLUME=Volume 13 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2025.1392761 DOI=10.3389/fenrg.2025.1392761 ISSN=2296-598X