Comparative Analysis of PCM and Water-Based Thermal Energy Storage Units in a Photovoltaic and Thermal System for Residential ApplicationsYe-Bin Shin, Deuk-Won Kim, Wangje Lee, Jae-Won Jeong and Min-Hwi KimE3S Web Conf., 716 (2026) 04030DOI: https://doi.org/10.1051/e3sconf/202671604030