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Recent Advances in Renewable Energy Generation Technologies and Power Demand Response: 2nd Edition

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A: Sustainable Energy".

Deadline for manuscript submissions: 10 February 2026 | Viewed by 1321

Special Issue Editor

Dr. Marek Pavlík

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Guest Editor
Department of Electrical Power Engineering, Faculty of Electrical Engineering and Informatics (FEI), Technical University of Kosice, Letna 9, 040 01 Kosice, Slovakia
Interests: photovoltaic systems; electromagnetic shielding
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Currently, there is an increasing emphasis on reducing the energy consumption of buildings. As temperatures rise, the professional community is focused on lowering the carbon footprint in the energy sector. Solar energy, which is currently the most accessible form of energy, can be harnessed using photovoltaic panels. However, operating photovoltaic systems present numerous challenges that lead to a decrease in energy efficiency. This opens up the possibility of researching the effective operation of photovoltaic systems, as their improved efficiency would result in greater energy generation and, consequently, a reduction in the dependency on fossil fuels.

The aim of this Special Issue is to introduce new scientific insights in the field of photovoltaic system operation to the scientific and professional community. This Special Issue covers a variety of topics, including, but not limited to, the following:

  • Photovoltaic systems;
  • The operation of photovoltaic systems;
  • Efficient energy utilization;
  • Power system control;
  • Battery systems;
  • Electricity price;
  • The optimal operation of renewable energy sources;
  • Electric distributed systems;
  • Energy management systems;
  • Electromobility

Dr. Marek Pavlík
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

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. Energies is an international peer-reviewed open access semimonthly 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 2600 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

  • photovoltaic system
  • battery system
  • operation of photovoltaic systems
  • power system control
  • renewable energy sources
  • electricity price
  • prediction of electricity price
  • wind energy

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Related Special Issue

Published Papers (3 papers)

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Research

14 pages, 2899 KB  
Article
Shadow Analysis of Photovoltaic Systems Deployed Near Obscuring Walls
by Joseph Appelbaum, Assaf Peled and Avi Aronescu
Energies 2025, 18(18), 4839; https://doi.org/10.3390/en18184839 - 11 Sep 2025
Viewed by 194
Abstract
As photovoltaic (PV) deployment has expanded from rural sites to the built environment, rooftops are increasingly used for electricity generation. In these settings, the visible sky is often partially obstructed by adjacent walls, producing shading that reduces energy yield. This study quantifies the [...] Read more.
As photovoltaic (PV) deployment has expanded from rural sites to the built environment, rooftops are increasingly used for electricity generation. In these settings, the visible sky is often partially obstructed by adjacent walls, producing shading that reduces energy yield. This study quantifies the effect of wall shading on incident solar radiation and system losses, and contrasts it with inter-row (mutual) shading experienced by PV arrays in open fields. Systems installed near obscuring walls are subject to both phenomena. To our knowledge, the specific impact of wall shading on PV systems has not been examined comprehensively. We characterize how wall height governs shadow geometry, determine the resulting numbers of shaded and unshaded cells and modules, and assess how shaded modules influence the performance of the remaining modules in a series string. For the parameter set analyzed, annual energy losses are 7.7% due to wall shading and 4% due to inter-row shading, yielding a combined loss of 10.2%. The methods and results provide a practical basis for designers to estimate shading losses and expected energy production for PV systems sited near obscuring walls. Full article
(This article belongs to the Special Issue Recent Advances in Renewable Energy Generation Technologies and Power Demand Response: 2nd Edition)
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24 pages, 2587 KB  
Article
Frequency Regulation of Renewable Energy Plants in Regional Power Grids: A Study Considering the Frequency Regulation Deadband Width
by Weizheng Gong, Shaoqi Yu, Xin Wu, Lianchao Liu, Meiling Ma and Dong Han
Energies 2025, 18(17), 4618; https://doi.org/10.3390/en18174618 - 30 Aug 2025
Viewed by 397
Abstract
With the continuous increase in renewable energy penetration, traditional frequency regulation strategies in power grids struggle to maintain frequency stability under high renewable-share conditions. To address the shortcomings of the current deadband settings in regional grid frequency regulation, this paper proposes an optimized [...] Read more.
With the continuous increase in renewable energy penetration, traditional frequency regulation strategies in power grids struggle to maintain frequency stability under high renewable-share conditions. To address the shortcomings of the current deadband settings in regional grid frequency regulation, this paper proposes an optimized deadband-configuration scheme for renewable energy power plants and evaluates its effectiveness in enhancing the frequency regulation potential of renewable units. By developing frequency response models for thermal power, wind power, photovoltaic generation, and energy storage, the impact of different deadband widths on dynamic frequency response and steady-state deviation is analyzed. Three representative output scenarios for renewable units are constructed, and under each scenario the coordinated control performance of the proposed and the existing deadband configurations is compared. Simulation studies are then conducted based on a typical high renewable penetration scenario. The results show that, compared with the existing regional-grid deadband settings, the proposed configuration more fully exploits the regulation potential of renewable units, improves overall frequency-response capability, significantly reduces frequency deviations, and shortens recovery time. This research provides both theoretical foundations and practical guidance for frequency-support provision by renewable energy power plants under high penetration conditions. Full article
(This article belongs to the Special Issue Recent Advances in Renewable Energy Generation Technologies and Power Demand Response: 2nd Edition)
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14 pages, 724 KB  
Article
Problematic Aspects of Energy Systems with a High Penetration of Renewable Energy Sources
by Anatolijs Mahnitko, Tatjana Lomane and Inga Zicmane
Energies 2025, 18(16), 4282; https://doi.org/10.3390/en18164282 - 12 Aug 2025
Viewed by 448
Abstract
This article considers various aspects of the functioning of electric power systems (EPSs) with a high proportion of available renewable energy sources (RES). In the absence of sufficient sources of basic generation in the EPS, new ways to eliminate possible consumer load jumps [...] Read more.
This article considers various aspects of the functioning of electric power systems (EPSs) with a high proportion of available renewable energy sources (RES). In the absence of sufficient sources of basic generation in the EPS, new ways to eliminate possible consumer load jumps in the form of power reserves will be required. Based on the studies carried out in the Baltic States’ energy systems, it follows that the best way to ensure stable and safe operation of power plants in these conditions is to use energy storage devices, namely, a battery energy storage system (BESS). The BESS battery system will be able to provide reserves in a more economical way than most power plants that use organic fuels. A model for the distribution of production capabilities of an electric power producer with specified energy characteristics in market conditions is proposed. The practical implementation of the model makes it possible to obtain the initial data for creating characteristics of price proposals in the formation of a market for power reserves. The implementation of the model is illustrated for a concrete example. Full article
(This article belongs to the Special Issue Recent Advances in Renewable Energy Generation Technologies and Power Demand Response: 2nd Edition)
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