Priyo Adi Sesotyo, a doctoral candidate in the Electrical Engineering program at FTUI, has sought to address the pressing issue of energy efficiency amidst the growing adoption of electric vehicles (EVs) in Indonesia. His research, titled “Real-Time Electricity Tariff Scheme Model for Electric Vehicles in Java, Madura, and Bali (JAMALI)”, was presented during an open doctoral promotion session held on Tuesday (14/01) at the Makara 04 Smart Meeting Room, FTUI Dean’s Office.
“Currently, the use of electric vehicles is increasing, but electricity tariffs remain flat, applying fixed rates regardless of time or usage conditions. This system has led to rising government subsidies for electricity, especially during peak usage periods,” Priyo explained.
He highlighted that the transportation sector is a major contributor to greenhouse gas emissions, making vehicle electrification a vital step toward reducing environmental impact. However, the surge in electricity demand from mass EV charging during certain hours poses a risk to grid stability.
In his research, Priyo developed a real-time electricity tariff model designed to regulate EV user behaviour. “This system encourages users to charge their vehicles during off-peak hours, helping maintain grid sability and reduce operational costs. The study aims to create a tariff scheme that balances regional electricity needs and userbehaviourr while upholding the principle of fairness,” he noted.
The research analyzed data from user behaviours in the JAMALI region. The proposed tariff model considers factors such as power plant capacity, electricity usage patterns, and the specific needs of EV users in each area. Priyo evaluated three different charging schemes: uncontrolled charging, time-of-use (ToU) charging, and vehicle-to-grid (V2G) charging, where EVs can return energy to the grid.
The findings showed that uncontrolled charging schemes are less effective, as they fail to optimize daily electricity load management. Conversely, ToU and V2G schemes demonstrated significant efficiency improvements, reducing operational costs by 3.15% and 4.15%, respectively. The model also underscores the importance of regionalized tariff adjustments to ensure fairness for users across various areas.
Priyo concluded that implementing a real-time tariff scheme could reduce government subsidies and promote more efficient electricity consumption behaviour among the public. He recommended a phased implementation starting in regions with high EV adoption and adequate electricity infrastructure.
Acting Dean of FTUI, Prof. Ir. Mahmud Sudibandriyo, MSc., Ph.D., expressed his appreciation for the research, stating, “This study demonstrates how innovation in the energy sector can positively impact not only operational efficiency but also support the sustainable energy transition promoted by the Indonesian government.”
With his research, Priyo Adi Sesotyo earned his doctoral degree with Summa Cum Laude, achieving a perfect GPA of 4.0. Dr. Priyo is the 179th doctoral graduate of the Electrical Engineering program and the 588th of the Faculty of Engineering at Universitas Indonesia. He was supervised by Prof. Dr. Ir. Yanuar, M.Eng., M.Sc., with Prof. Ir. Rinaldy Dalimi, M.Sc. as his advisor and Dr.-Ing. Budi Sudiarto, S.T., M.T. as co-advisor. The examination committee included Prof. Dr. Ir. Rudy Setiabudy, DEA.; Prof. Dr. Ir. Iwa Garniwa M.K., M.T.; Faiz Husnayain, S.T., M.Sc., Ph.D.; Ismi Rosyiana Fitri, S.T., Ph.D.; and Dr. Ir. Jaka Windarta, M.T., IPU.
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Faculty of Engineering, Universitas Indonesia
