The 8th Southeast Asia Conference on Thermoelectrics (SACT) is a conference organized by Department of Physics, Institut Teknologi Sepuluh Nopember (ITS), Surabaya, established by the Thai Thermoelectric Society. SACT brings together experts, scientists, and engineers from across the region and beyond to discuss topics such as thermoelectric materials & modeling, device development & testing, systems design and applications, and other materials and applications. Selected papers are published in IOP Publishing.