Article
Energy & Fuels
Zulkifli Othman, Shahril Irwan Sulaiman, Ismail Musirin, Ahmad Maliki Omar, Sulaiman Shaari
Summary: This paper presents an iterative-based sizing algorithm for determining the optimal model of each system component in stand-alone photovoltaic systems. The algorithm aims to optimize the system's performance ratio or levelized cost of electricity. The results show that the iterative-based sizing algorithm outperforms the conventional algorithm in terms of computational time and convenience of sizing.
Article
Energy & Fuels
Eero Vartiainen, Christian Breyer, David Moser, Eduardo Roman Medina, Chiara Busto, Gaetan Masson, Elina Bosch, Arnulf Jager-Waldau
Summary: Green hydrogen will be a crucial component of the future 100% sustainable energy and industrial system, with a certain proportion of solar and wind electricity being used for hydrogen production through water electrolysis. It is anticipated that by 2030 and 2050, electrolyzer capital expenditure and hydrogen costs will significantly decrease, particularly with the continuous decline in solar PV costs.
Article
Energy & Fuels
Nur Atharah Kamarzaman, Shahril Irwan Sulaiman, Ahmad Ihsan Mohd Yassin, Intan Rahayu Ibrahim, Hedzlin Zainuddin
Summary: This study presents an optimal design approach for a hybrid stand-alone photovoltaic system using the Honey Badger Algorithm. The algorithm was found to be faster and more effective than other commonly used algorithms in minimizing power supply failure probability and levelized cost of electricity.
Article
Energy & Fuels
M. Thirunavukkarasu, Yashwant Sawle
Summary: In a typical rural area in India, a tea manufacturing plant can benefit from hybrid renewable energy systems that utilize excess electricity and waste heat for higher renewable fraction, lower energy cost, and emissions. Grid-connected systems are more cost-effective compared to stand-alone systems.
FRONTIERS IN ENERGY RESEARCH
(2022)
Article
Energy & Fuels
Eero Vartiainen, Christian Breyer, David Moser, Eduardo Roman Medina, Chiara Busto, Marko Topic, Daniel Mugnier
Summary: This article studies the business case of prosumers in the European electricity market, and finds that self-consumption photovoltaic systems have positive commercial prospects in every market segment and country, especially industrial PV systems with 100% self-consumption rates achieving a payback time of less than 4 years.
Article
Green & Sustainable Science & Technology
Rong Wang, Sandra Hasanefendic, Elizabeth von Hauff, Bart Bossink
Summary: The price of photovoltaics (PV) has been decreasing, making it cheaper than conventional electricity sources. This study critically evaluates the grid parity of PV in China and proposes a more accurate assessment method. The findings suggest that grid parity for PV in China will be achieved between 2020 and 2032.
Article
Agricultural Engineering
H. D. D. Ziero, L. C. Ampese, L. S. Buller, V Oliani Trevisan, M. T. Gouvea, M. T. M. G. Rosa, M. D. Berni, T. Forster-Carneiro
Summary: The potential applications of by-products from corn ethanol mills are still in early stages of development in Brazil. This study analyzed a corn ethanol mill in Mato Grosso, Brazil, and found that anaerobic digestion of thin stillage could generate thermal and electric energy. Moreover, the research suggests that thin stillage anaerobic digestion could be a win-win alternative for corn ethanol mills in Brazil towards the circular economy approach.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Energy & Fuels
Sebastian Zainali, Johan Lindahl, Johan Linden, Bengt Stridh
Summary: The installations of solar photovoltaic systems in Sweden are growing rapidly, especially in the small-scale distributed systems market segment. This study provides an up-to-date assessment of the levelized cost of electricity for long-term scenario work and investment estimation, based on the turnkey system cost of over 6,000 single-family dwelling photovoltaic systems commissioned in Sweden. The analysis reveals that the levelized cost of electricity for these systems is generally lower than assumed in long-term scenario studies, explaining the unexpected fast deployment of distributed photovoltaic systems in Sweden.
Article
Energy & Fuels
Hun Mun, Byunghoon Moon, Soojin Park, Yongbeum Yoon
Summary: The power industry is rapidly changing with the increasing demand for eco-friendly and stable power supply. Small-capacity renewable power sources like photovoltaics and wind are on the rise as microgrids in Korea, especially in small areas or islands. The government's microgrid development policy focuses on electric power quality and expanding renewable energy supply to reduce greenhouse gas emissions.
Article
Chemistry, Physical
Jakov Simunovic, Ivan Pivac, Frano Barbir
Summary: This study examines the capacity and location of hydrogen refueling stations in Croatia, considering various configurations in the absence of hydrogen users. The evaluation includes different options for hydrogen production and charging stations, as well as transportation methods, with a focus on cost and benefits.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Energy & Fuels
Pervez Hameed Shaikh, Amjad Ali Lashari, Zohaib Hussain Leghari, Zubair Ahmed Memon
Summary: The study demonstrates that the stand-alone parabolic solar dish/Stirling system in Jamshoro provides feasible techno-enviro-economic performance, generating a significant amount of electricity annually with good performance, low emissions, and a sensitivity analysis showing the mirror area and collector cost significantly impact power output and cost.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Thermodynamics
Ling Ji, Xiaolin Liang, Yulei Xie, Guohe Huang, Bing Wang
Summary: This paper focuses on the optimal design and techno-economic analysis of a stand-alone hybrid energy system for a typical rural village in northwest China, which utilizes solar radiation and biomass to provide a sustainable energy supply. Through sensitivity and scenario analysis, it is found that the PV/biomass-CHP/diesel generator/gas boiler/battery/thermal energy storage hybrid energy system is the most economical option for local electrification.
Article
Energy & Fuels
Sara Pescetelli, Antonio Agresti, George Viskadouros, Stefano Razza, Konstantinos Rogdakis, Ioannis Kalogerakis, Emmanuel Spiliarotis, Enrico Leonardi, Paolo Mariani, Luca Sorbello, Marco Pierro, Cristina Cornaro, Sebastiano Bellani, Leyla Najafi, Beatriz Martin-Garcia, Antonio Esau Del Rio Castillo, Reinier Oropesa-Nunez, Mirko Prato, Simone Maranghi, Maria Laura Parisi, Adalgisa Sinicropi, Riccardo Basosi, Francesco Bonaccorso, Emmanuel Kymakis, Aldo Di Carlo
Summary: In this study, large-scale perovskite solar panels were manufactured and tested in an outdoor solar farm for 12 months. The research demonstrates the scalability and commercial potential of this technology, and provides insights on the key factors influencing system operation.
Article
Green & Sustainable Science & Technology
Sachin Kumar, Rakesh Sharma, S. Srinivasa Murthy, Pradip Dutta, Wei He, Jihong Wang
Summary: Stand-alone microgrids are essential for providing electricity access to off-grid areas and communities relying on renewables. However, efficient energy storage systems are still a challenge. This study explores the use of LaNi5-based hydrogen-energy storage system in stand-alone microgrids and compares the performance and thermal output of hybrid and wind microgrids.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Energy & Fuels
Mohamed Nasser, Hamdy Hassan
Summary: Expanding renewable energy consumption is crucial for achieving sustainability and carbon neutrality. Hydrogen is considered the leading energy system for multipurpose applications in the future. This study investigates a standalone photovoltaic hydrogen storage system (PV/H2) using a hybrid polymer electrolyte membrane/fuel cell/single effect desalination system (PV/PEM/FC/SED), comparing it to the traditional PV/Battery system. A mathematical model and MATLAB/Simulink code are used to simulate the systems under actual climatic conditions in Egypt. The results show that PV/H2 requires 160 m2 of PV panels to fulfill a yearly load of 19,745 kWh, while PV/Battery only needs 40 m2. The hydrogen system has an overall efficiency of 8.5% compared to 17.8% for the battery system. Despite being less efficient, the hydrogen system is more economical with lower levelized cost of electricity and shorter payback period, making it recommended for supplying electricity demand and reducing CO2 emissions.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Zeljko Penga, Gojmir Radica, Frano Barbir, Sandro Nizetic
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Editorial Material
Chemistry, Physical
Sandro Nizetic, Frano Barbir, Nedjib Djilali
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Chemistry, Physical
Ivar J. Halvorsen, Ivan Pivac, Dario Bezmalinovic, Frano Barbir, Federico Zenith
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2020)
Article
Engineering, Chemical
Lei Xing, Yuanxiang Xu, Zeljko Penga, Qian Xu, Huaneng Su, Weidong Shi, Frano Barbir
Article
Electrochemistry
I. Pivac, F. Barbir
Article
Chemistry, Physical
Quentin Meyer, Ivan Pivac, Frano Barbir, Chuan Zhao
JOURNAL OF POWER SOURCES
(2020)
Article
Engineering, Environmental
Lei Xing, Yuanxiang Xu, Zeljko Penga, Qian Xu, Huaneng Su, Frano Barbir, Weidong Shi, Jin Xuan
Summary: The use of a systematic design of gradients in platinum loading and temperature distribution can improve cell performance, save platinum usage, and maintain current density homogeneity in PEM fuel cells.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Polymer Science
Ivan Poljak, Pasko Zupanovic, Frano Barbir
Summary: In Nafion processes, it has been shown that valence electrons instead of protons are the charge carriers in ex situ processes, with valence electron concentration decreasing with water uptake. Additionally, the concentration of valence electrons in ex situ measurements is four orders of magnitude higher than proton concentration in in situ measurements.
Article
Chemistry, Physical
Jakov Simunovic, Ivan Pivac, Frano Barbir
Summary: This study examines the capacity and location of hydrogen refueling stations in Croatia, considering various configurations in the absence of hydrogen users. The evaluation includes different options for hydrogen production and charging stations, as well as transportation methods, with a focus on cost and benefits.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Domina Cikatic Sanic, Frano Barbir
Summary: A micro hydrogen system combined with renewable energy sources is designed to meet the power, heating, and cooling needs of a standalone household in a Mediterranean climate. It utilizes a unique power management strategy to optimize the system configuration and avoid energy waste. The system integrates a fuel cell and a heat pump to utilize waste heat, providing the majority of hot water and household cooling/heating energy. Compared to a hybrid renewable energy system with battery storage, the hydrogen system requires significantly fewer batteries and does not rely on backup diesel generators.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Andraz Kravos, Ambroz Kregar, Zeljko Penga, Frano Barbir, Tomaz Katrasnik
Summary: An optimal control of liquid water dynamics is crucial for the performance and longevity of PEM Fuel Cells (PEMFC). The study presents a physically motivated two-phase model that can consistently handle liquid water dynamics in key regions of a PEMFC, demonstrating real-time readiness and high agreement with experimental data in various operating regimes. The developed model offers new features for advanced control methods and digital twin applications.
JOURNAL OF POWER SOURCES
(2022)
Review
Chemistry, Physical
Andrej Zvonimir Tomic, Ivan Pivac, Frano Barbir
Summary: Durability is a major challenge for the commercialization of electrolyzers, and their degradation processes are increasingly investigated. However, comparing degradation testing results is difficult due to the wide spectrum of procedures used. This article provides an overview of PEM electrolyzer degradation testing, including a comparative analysis and a critical review, in order to systemize the testing procedures and advance accelerated test development.
JOURNAL OF POWER SOURCES
(2023)
Article
Energy & Fuels
Andrej Zvonimir Tomic, Ivo Marinic-Kragic, Frano Barbir
Summary: Methods for optimizing islanded microgrid systems typically use hourly models and simple algebraic models for each subcomponent. This paper improves the modeling process by developing a simplified algebraic model that simulates accelerated battery degradation with one parameter. The research shows that the optimal system parameters and overall cost strongly depend on battery degradation characteristics.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2023)
Proceedings Paper
Engineering, Electrical & Electronic
Federico Zenith, Ivar J. Halvorsen, Ivan Pivac, Dario Bezmalinovic, Frano Barbir
2019 IEEE VEHICLE POWER AND PROPULSION CONFERENCE (VPPC)
(2019)
Proceedings Paper
Computer Science, Interdisciplinary Applications
Jakov Simunovic, Frano Barbir, Gojmir Radica, Branko Klarin
2019 4TH INTERNATIONAL CONFERENCE ON SMART AND SUSTAINABLE TECHNOLOGIES (SPLITECH)
(2019)