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Energies
and Quality Journal. ISSN: 2659-8779-
E&Q3-1.
Volume 3, No.1, July 2025-
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1-10 |
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213
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Advancing Sustainable Hydrogen Production: Cost, Environmental, and Technological Innovations in Nasser J.Al-Kuwari(1)Tariq MASOOD(2), Jamil Abdo(2), Tahir Imran Qureshi(3), Kaimiao Liu(2) 1. Department of Engineering. Frostburg State University. USA 2. Qatar Energy, Q-Chem, QAFAC 3. Department of Chemical Engineering. NFCIE, Multan.Pakistan Abstract Hydrogen production methods differ significantly intheir environmental impact and cost-benefit trade-offs, highlighting the urgent need for sustainable and cost-effective approaches to hydrogen production. In this paper, we focus on studying the optimal production pathway which can balance environmental friendliness, economic feasibility, and long-term sustainability. Currently, approximately 90% of global hydrogen production relies on steam methane reforming (SMR). While methane, the primary component of natural gas, serves as the key feedstock, natural gas also contains 0–20% methane and, occasionally, other hydrocarbons...READ MORE
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225
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11-16 Direct and Indirect Tax Incentives for Alternative Sources of Electrical Energy in Brazil: An Overview in 2025 Daiane Rodrigues dos Santos(1),Tuany Esthefany Barcellos(2) 1. Department of Economics. Maracanã, Rio de Janeiro. Brazil 2. Department of Industrial Engineering. Gávea, Rio de Janeiro. Brazil Abstract The diversification of Brazil’s electricity grid isdriven by direct and indirect tax incentives that encourage investment in renewable energy sources. These tax benefits enable cost reductions, facilitate financing and increase the sector’s attractiveness to investors, fostering economic and technological development. In 2024, renewable sources accounted for approximately 68% of Brazil's installed capacity, with significant solar and wind energy growth. Public policies, such as the National Biofuels Policy (RenovaBio) and the exemption of ICMS and PIS/Cofins on renewable energy equipment, are important for this expansion...READ MORE
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234
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17-22 Design of a control strategy for a three-phase DC/AC electronic converter to supply virtual inertia from a renewable energy source connected to the unbalanced electrical grid Marcos Gallegos Collado(1), Julio C. Tafur(1), Damian Sal y Rosas(2) 1. Department of Engineering -Control and Automation Engineering Master Degree Program Pontificia Universidad Católica del Perú 2. LAAS-CNRS, University of Toulouse. France Abstract Power electronic converters play a critical role in the integration of renewable energy sources, especially in distributed generation systems and microgrids. They must operate safely and efficiently under all operating conditions, particularly in unbalanced grids. The provision of virtual inertia using simple and efficient control algorithms represents a good alternative to improve the stability of distributed generation systems...READ MORE
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244
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23-28 Hierarchical Control for Isolated Microgrid Clusters P. Horrillo-Quintero(1), P. García-Triviño(1), D. Carrasco-González(1), R. Sarrias-Mena(2), C. A. García-Vázquez(1), L. M. Fernández-Ramírez(1) 1. Department of Electrical Engineering. E.T.S.I.A University of Cadiz. Spain 2. Department of Engineering in Automation, Electronics, Computer Architecture & Networks. E.T.S.I.A University of Cadiz. Spain Abstract This paper presents a novel hierarchical control fora microgrid cluster (MGC) operating in islanded mode, integrating renewable energy technologies (RETs), energy storage systems (ESSs), and variable demands. The control strategy dynamically manages power distribution by introducing the real-time available power concept, enabling proportional allocation of power among microgrids (MGs) based on their operational capacity. The proposed configuration includes MGs with grid-forming (GFM) inverters for voltage and frequency control and MGs with grid-following (GFL) inverter for power control...READ MORE
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249
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29-34 Decarbonizing an Offshore Microgrid with Green Hydrogen: The PLOCAN case study driven by the H2Verde Project A. Romero-Filgueira(1,2), M.J. Pérez-Molina(1,2), J.A. Carta(2), P. Cabrera(2) 1. Oceanic Platform of the Canary Islands (PLOCAN).Telde. Spain 2. Group for the Research on Renewable Energy Systems (GRRES), Department of Mechanical Engineering, Universidad de Las Palmas de Gran Canaria. Spain Abstract This paper presents the method used for designingthe smart grid for PLOCAN’s offshore platform, which aims to fully decarbonize the platform through a baseline renewable energy system, consisting of photovoltaic and wind power generation, along with electrical and chemical energy storage using renewable hydrogen. However, given PLOCAN’s role as a testbed for the validation of marine technologies, the grid design must account for the integration of various marine-based power generation systems, thereby influencing the sizing of the installed equipment...READ MORE
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275
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35-41 A Hybrid Grid-Wind Energy System Using Voltage Oriented Control and Class C Chopper For An Electric Charging Station Maamar Taleb, Salwa Baserrah, Mohamed Amine Fnaiech, Khaled Zehar Department of Electrical and Electronics Engineering. University of Bahrain Abstract A shunt interconnection made from a wind drivenDC machine system, a three phase grid voltage supply, and a DC load representing an electric charging station is investigated The wind driven DC machine system participates with maximum power to the overall active power flow. It uses a class C chopper circuitry controlled properly by a typical maximum power point tracker (MPPT) controller. The grid has the role of supplying active power in case of any power deficiency needed by the DC electric charging station load...READ MORE
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278
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42-48 Powering sustainability: comparing ESG strategies of Hungary’s leading energy companies I. Vokony(1), M. Szalmane Csete(2) 1. Department of Electric Power Engineering. Budapest University of Technology and Economics. Hungary 2. Department of Environmental Economics and Sustainability. Budapest University of Technology and Economics. Hungary Abstract This paper delves into the sustainability strategies of Hungary's four major energy companies—E.ON, MVM, MOL, and Opus Global—analyzing their motivations, comparative positioning, and distinctive approaches. By exploring these companies' ESG (Environmental, Social, Governance) goals and performance in depth, the study identifies best practices that transcend regulatory compliance and align with enduring business objectives...READ MORE
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292
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49-55 Development of a Computational Platform for the Analysis of Financial Indicators in Institutions of the Brazilian Federal Education Network in the Context of Distributed Generation: A Case Study of the University of Brasília Brenno S. do Vale(1), Alex Reis (1), Loana. N. Velasco(1), Tânia M. Francisco (2), Ênio C. Resende(3), Luiz C.G. Freitas(3) 1. Faculty of Science, Technology in Engineering, and Energy Engineering, University of Brasilia. Brazil 2. Administration, Federal University of São Paulo, São Paulo. Brazil 3. Faculty of Electrical Engineering, Federal University of Uberlandia. Brazil Abstract The motivation for this study stems from the needfor universities to improve energy efficiency and financial management amid increasing sustainability commitments. The main objective of this work is to create a computational platform to provide a comprehensive financial report model, aimed at administrative and financial managers at the University of Brasília (UnB), with specific indicators for monitoring expenses and savings related to electricity consumption. The methodology involves a thorough analysis of several indicators, including expense composition, energy tariffs, savings generated by Distributed Generation (DG) systems, fines, and demand contracts...READ MORE
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296
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56-61 Towards a novel framework for power system stability: I. Vokony, I. Taczi, B. Hartmann Department of Electric Power Engineering. Budapest University of Technology and Economics. Budapest. Hungary Abstract The transition from centralized synchronous generation to distributed renewable resources has introduced significant challenges for power system stability. Conventional stability metrics and methods, rooted in high-inertia systems, struggle to address the fast dynamics and control complexity of low-inertia grids. This paper proposes system rigidity as a new holistic stability metric, defined as the capacity of a power system to resist destabilizing forces (e.g. frequency fluctuations, voltage deviations, phase angle disturbances) within acceptable limits under varying conditions. We develop a theoretical framework for system rigidity, including a Rigidity Response Threshold (RRT) that quantifies the maximum disturbance a system can withstand without losing stability...READ MORE
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E&Q Journal is edited by: AEDERMACP/EA4EPQ |
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