Publications

Hybrid hydrogen–energy storage systems play a significant role in the operation of islands microgrid with high renewable energy penetration: maintaining balance between the power supply and load demand. However improper operation leads to undesirable costs and increases risks to voltage stability. Here multi-time-scale scheduling is developed to reduce power costs and improve the operation performance of an island microgrid by integrating dee Read More

Underground hydrogen storage (UHS) has attracted increasing attention as a promising technology for the largescale storage of renewable energy resources and the decarbonization of energy systems. This study aimed to identify critical parameters influencing UHS performance particularly the role of hydrogen conversion via in situ methanation and hydrogen recovery during production cycles. The main focus is the Lehen field in Upper Austria where a pil Read More

The ongoing global energy transition spurred by ecological concerns and by evolving political dynamics is necessitating a significant expansion of renewable energy sources. This shift towards renewables is introducing the challenge of heightened energy supply volatility and it underscores the imperative for large-scale storage solutions in order to mitigate fluctuations in demand and supply. This study investigates the potential of Power-to-X (P2X) technologie Read More

Indonesia faces mounting challenges from climate change and environmental degradation underscoring the need for sustainable transportation solutions. This study evaluates factors influencing the adoption of Hybrid Electric Vehicles (HEV) Battery Electric Vehicles (BEV) and Hydrogen Fuel Cell Vehicles (HFCV) using Multi-Criteria Analysis (MCA) and Total Cost of Ownership (TCO) approaches. Eight key factors were analyzed: safety operational and mainte Read More

The study presents the development of a novel integrated wind-biomass energy system designed for sustainable urban development leveraging municipality waste and wind power energy sources. This innovative system is capable of producing multiple forms of energy including electricity cooling heat and hydrogen addressing the diverse energy needs of urban communities. It integrates advanced thermodynamic cycles like Kalina and water electrol Read More

Indonesia’s energy sector faces critical challenges due to its heavy reliance on coal as the dominant power source which contributes to environmental degradation and rising CO2 emissions resulting into transition needs for renewable energy as targeted inside Nationally Determined Contribution (NDCs) 2060. In addition to these hydrogen energy also shows great potential for Indonesia’s energy needs. However to date there are no extensive rese Read More

This paper presents an improved Equivalent Consumption Minimization Strategy (ECMS) designed to optimize energy management for the hybrid hydrogen fuel power setups in multirotor drones. The proposed strategy aims to reduce hydrogen consumption and enhance the performance of the system consisting of Proton Exchange Membrane Fuel Cells (PEMFCs) and lithium batteries. Multirotor drones experience rapid power fluctuations due to their agile Read More

The Life Cycle Sustainability Assessment (LCSA) is a proven method for sustainability assessment. However the interpretation phase of an LCSA is challenging because many different single results are obtained. Additionally performing a Multi-Criteria Decision Analysis (MCDA) is one way—not only for LCSA—to gain clarity about how to interpret the results. One common form of MCDAs are outranking methods. For these type of methods it becomes of utmost i Read More

Optimally scheduling alkaline electrolyzers (AELs) in a hydrogen-based microgrid (HBM) can greatly unleash the operational flexibility of the HBM. However existing scheduling strategies of AELs mostly utilize a simplified AEL model which ignores the nonlinear coupling of electric-hydrogen-thermal sectors violating the AEL’s security constraints thereby making the scheduling scheme infeasible. This paper proposes an improved model predictive control (MPC) Read More

This paper aims at investigating clean hydrogen production from the large size (14 GW) hydroelectric power plant of Itaipu located on the border between Paraguay and Brazil the two countries that own and manage the plant. The hydrogen produced by a water electrolysis process is converted into ammonia through the well-known Haber-Bosch process. Hydraulic energy is employed to produce H2 and N2 respectively from a large-scale electrolysis syst Read More