Situmorang, H. C. and Indartono, Y. S. (2025) “Techno-Economic Assessment of a 400 MWp Floating Photovoltaic System Integrated with Pumped Hydro Energy Storage (PHES) on Lake Toba”, ITB Graduate School Conference, 5(1). Available at: https://gcs.itb.ac.id/proceeding-igsc/index.php/igsc/article/view/718 (Accessed: 13 September 2026).