Advances in the Modeling, Optimization and Control of Renewable Energy Systems

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Energy Systems".

Deadline for manuscript submissions: 31 October 2025 | Viewed by 1243

Special Issue Editors


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Guest Editor
Department of Electrical, Computer and Biomedical Engineering, Abu Dhabi University, Abu Dhabi 59911, United Arab Emirates
Interests: renewable energy systems modeling and control; solar energy; wind energy; marine energy

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Guest Editor
Department of Electrical and Communication Engineering, United Arab Emirates University (UAEU), Al-Ain 15551, United Arab Emirates
Interests: modeling and control of wave energy converters; grid integration for wave energy; energy management systems for wave energy; wave energy assessment

Special Issue Information

Dear Colleagues,

As the world is swiftly shifting towards a more diversified energy paradigm, renewable energy systems are becoming prevalent both technologically and economically. Accurate modeling of such complex, nonlinear, and often heterogenous systems offers a cost-effective method to better understand systems’ behaviors, predict their performance, and optimize operation and component selection well before the real-world implementation of such systems. Moreover, accurate and reliable models will help in designing effective control strategies that maximize energy capture, minimize conversion losses, and ensure system stability and coordination, eventually enhancing the economic feasibility of the system. This Special Issue, entitled ‘Advances in the Modeling, Optimization and Control of Renewable Energy Systems’, aims to demonstrate the most recent developments in the field of modeling and controlling renewable energy systems, which encompasses analytical physics-based, data-driven, and artificial intelligence-based methodologies. Furthermore, in this Special Issue, we aspire to provide a platform for disseminating cutting-edge research on the modeling and control of renewable energy systems not only restricted to electric energy generation, but also other alternative forms of renewable energy (e.g., chemical, thermal, mechanical, etc.) and conversion from one form to another (e.g., P2X and X2P). We cordially invite scientists, researchers, and engineers to contribute to this Special Issue, whether through theoretical study, computer simulations, or experimental implementation.

Topics of interest include, but not limited to, the following:

  • Solar energy (PV and thermal);
  • Wind energy;
  • Marine energy (tidal, wave, SGE, and OTEC);
  • Thermal energy;
  • Bioenergy (biomass, biofuels, etc.);
  • Energy storage (electrochemical, mechanical, chemical, thermal, etc.);
  • Hybrid renewable energy systems.

Dr. Mohammed Jama
Dr. Addy Wahyudie
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Processes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • renewable energy
  • modeling and simulation
  • control systems
  • energy systems
  • energy
  • artificial intelligence

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Published Papers (2 papers)

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Research

17 pages, 2759 KB  
Article
Harnessing Renewable Energy Sources in CO2 Refrigeration for Eco-Friendly Fish Cold Storage
by Arian Semedo and João Garcia
Processes 2025, 13(9), 2847; https://doi.org/10.3390/pr13092847 - 5 Sep 2025
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Abstract
This study explores innovative strategic solutions within a sustainability framework, focusing on four viable options for an integrated refrigeration system designed for fish preservation in Tarrafal de Santiago, Cape Verde. Tarrafal is a coastal town on Santiago Island, characterized by its reliance on [...] Read more.
This study explores innovative strategic solutions within a sustainability framework, focusing on four viable options for an integrated refrigeration system designed for fish preservation in Tarrafal de Santiago, Cape Verde. Tarrafal is a coastal town on Santiago Island, characterized by its reliance on fishing activities and the challenges posed by limited energy infrastructure and local environmental vulnerabilities. The evaluated solutions range from grid-dependent systems to fully autonomous configurations powered by renewable energy sources, incorporating various refrigeration facility designs adapted to regional conditions. The primary objective is to assess the energy efficiency, economic viability, and environmental impact of these options within the specific geographic and socioeconomic context of Tarrafal de Santiago. Four approaches were analyzed: Strategy A involves two R134a refrigeration systems powered by conventional grid electricity; Strategy B employs a transcritical CO2 (R744) system combined with grid electricity; Strategy C integrates an R744 refrigeration system powered by autonomous renewable energy sources; and Strategy D utilizes R744 refrigeration combined with seawater-based heat exchange and autonomous renewable energy generation. The results indicate that Strategy D offers the greatest advantages, with emissions amounting to 15,882 kg of CO2 equivalent and a return on investment within five years. Autonomous electricity generation in Strategy D leads to a 95% reduction in CO2 emissions. Although Strategy C entails a higher initial cost, it proves financially viable and significantly enhances energy sustainability. Its autonomous energy production results in a reduction of 360,697 kg of CO2 emissions compared to conventional systems, highlighting the substantial environmental benefits of integrating local renewable energy sources into coastal communities such as Tarrafal de Santiago. Full article
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18 pages, 1421 KB  
Article
Application of Electric Energy Storage Technologies for Small and Medium Prosumers in Smart Grids
by Rosa M. Rengel Gálvez, Julio J. Caparrós Mancera, Eduardo López González, Diego Tejada Guzmán and José M. Sancho Peñate
Processes 2025, 13(9), 2756; https://doi.org/10.3390/pr13092756 - 28 Aug 2025
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Abstract
As the energy transition advances toward a low-carbon economy, small- and medium-sized consumers are increasingly becoming active prosumers, capable of generating, storing, and managing their own electricity. However, the intermittent nature of renewable sources poses significant challenges in matching generation with consumption, making [...] Read more.
As the energy transition advances toward a low-carbon economy, small- and medium-sized consumers are increasingly becoming active prosumers, capable of generating, storing, and managing their own electricity. However, the intermittent nature of renewable sources poses significant challenges in matching generation with consumption, making energy storage a key element for prosumer participation in smart grids. This work assesses the performance of various energy storage technologies suitable for prosumer applications, focusing on parameters such as efficiency, lifecycle behavior, and system integration. Lithium-ion batteries, supercapacitors, and hydrogen-based technologies were tested under real-world operating conditions within residential, commercial, and industrial scenarios. The results confirm that hybrid configurations deliver the most balanced performance, with supercapacitors improving short-term stability in commercial contexts and hydrogen storage enabling long-duration autonomy in industrial settings. In terms of battery state of charge, the experimental tests showed clear differences across prosumer types: in the residential case, it dropped to about 20–25% in the morning, but recovered to nearly full capacity by midday and stabilized at around 70–75% by the end of the day; in the commercial case, it fluctuated more widely, between roughly 18% and 100%, evidencing the highest stress on batteries; while in the industrial case, it reached 25–30% at peak demand, with hydrogen sustaining autonomy under extended load and ensuring greater long-term reliability. Overall, the findings reinforce the importance of tailored storage strategies to unlock the full potential of prosumers in smart grids. Full article
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