Integrating Thermal-Electric Flexibility in Smart Buildings using Grey-Box modelling in a MILP toolMarius Bagle, Benjamin Manrique Delgado, Igor Sartori, Harald Taxt Walnum and Karen Byskov LindbergE3S Web Conf., 362 (2022) 12003DOI: https://doi.org/10.1051/e3sconf/202236212003