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Recent Advances in Solar Cells and Photovoltaic Systems
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Recent Advances in Solar Cells and Photovoltaic Systems

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A2: Solar Energy and Photovoltaic Systems".

Deadline for manuscript submissions: 19 August 2024 | Viewed by 3916

Special Issue Editors

Prof. Dr. Fernando Janeiro

E-Mail Website
Guest Editor
Colégio Luís António Verney, University of Évora, 7000-671 Évora, Portugal
Interests: photovoltaic system characterization; power quality measurements; impedance identification; non-destructive testing
Dr. Lhoussain El Bahir

E-Mail Website
Guest Editor
Systems and Applications Engineering Laboratory, Electrical Engineering Department, National School of Applied Sciences of Marrakech, Cadi Ayyad University, Marrakesh 40000, Morocco
Interests: solar energy; wind energy; automatic control systems
Dr. Amal Bouich‬

E-Mail Website
Guest Editor
Department of Applied Physics, Institute of Design and Manufacturing (IDF), Polytechnic University of Valencia, 46000 Valencia, Spain
Interests: solar cells; thin films; perovskite; characterisation; morphology; optoelectronics

Special Issue Information

Dear Colleagues,

The growing global energy demand has led to increased greenhouse gas emissions and inevitable global warming. To address these challenges, the world has started to implement decarbonization and sustainability goals that require an increase in the use of renewable energy sources. Among these renewable energy sources, photovoltaic energy conversion systems are of particular interest. The continued scientific and technological advances in photovoltaics have included the development of new materials for solar cells, innovation in the full range of components that compose a photovoltaic system, and their modeling and characterization. These advances have led to improved efficiency and system lifespan, making photovoltaics a promising option for the world energy needs.

This Special Issue aims to present and disseminate the most recent advances in the development of solar cells and of photovoltaic systems.

Topics of interest include but are not limited to:

  • Solar cell materials and technologies;
  • Solar cell fabrication, characterization, and simulation;
  • Photovoltaic system design;
  • Monitoring of photovoltaic systems;
  • Sun-tracking technologies;
  • Solar panel fault detection;
  • Solar panel degradation;
  • Estimation of maximum power point;
  • Storage systems;
  • Hybrid thermal and photovoltaic systems.

Dr. Fernando Janeiro
Dr. Lhoussain El Bahir
Dr. Amal Bouich‬
Guest Editors

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

  • solar cell materials
  • photovoltaic systems
  • design
  • characterization
  • maximum power point
  • fault detection
  • storage systems
  • sun tracking

Published Papers (3 papers)

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Research

18 pages, 7313 KiB  
Article
Measurement Interval Effect on Photovoltaic Parameters Estimation
by Oumaima Mesbahi, Daruez Afonso, Mouhaydine Tlemçani, Amal Bouich and Fernando M. Janeiro
Energies 2023, 16(18), 6460; https://doi.org/10.3390/en16186460 - 07 Sep 2023
Viewed by 674
Abstract
Recently, the estimation of photovoltaic parameters has drawn the attention of researchers, and most of them propose new optimization methods to solve this problem. However, the process of photovoltaic parameters estimation can be affected by other aspects. In a real experimental setup, the [...] Read more.
Recently, the estimation of photovoltaic parameters has drawn the attention of researchers, and most of them propose new optimization methods to solve this problem. However, the process of photovoltaic parameters estimation can be affected by other aspects. In a real experimental setup, the I–V characteristic is obtained with IV tracers. Depending on their technical specifications, these instruments can influence the quality of the I–V characteristic, which in turn is inevitably linked to the estimation of photovoltaic parameters. Besides the uncertainties that accompany the measurement process, a major effect on parameters estimation is the size of the measurement interval of current and voltage, where some instruments are limited to measure a small portion of the characteristic or cannot reach their extremum regions. In this paper, three case studies are presented to analyse this phenomenon: different characteristic measurement starting points and different measurement intervals. In the simulation study the parameters are extracted from 1000 trial runs of the simulated I-V curve. The results are then validated using an experimental study where an IV tracer was built to measure the I–V characteristic. Both simulation and experimental studies concluded that starting the measurements at the open circuit voltage and having an interval spanning a minimum of half of the I–V curve results in an optimal estimation of photovoltaic parameters. Full article
(This article belongs to the Special Issue Recent Advances in Solar Cells and Photovoltaic Systems)
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17 pages, 3420 KiB  
Article
Inverter Heat Pumps as a Variable Load for Off-Grid Solar-Powered Systems
by Alexander V. Klokov, Alexander S. Tutunin, Elizaveta S. Sharaborova, Aleksei A. Korshunov and Egor Y. Loktionov
Energies 2023, 16(16), 5987; https://doi.org/10.3390/en16165987 - 15 Aug 2023
Cited by 6 | Viewed by 1399
Abstract
The capacity of electric air conditioning and heating systems is growing rapidly, as is the nameplate capacity of PV power plants. While the demand for cooling has a positive correlation with solar irradiance, the demand for heating has an opposite relation. In this [...] Read more.
The capacity of electric air conditioning and heating systems is growing rapidly, as is the nameplate capacity of PV power plants. While the demand for cooling has a positive correlation with solar irradiance, the demand for heating has an opposite relation. In this study, different approaches to design (aggregation; thermal, battery, and implicit storage) and control (frequency conversion; variable and adaptive load) and their effects on the efficiency of an off-grid active thermal stabilisation system based on a solar-powered heat pump are analysed. The case considered is a permafrost thermal stabilisation system in Norway. It is shown that proper layout and control of the system with an adaptive load can reduce capital expenditures and the total cost of ownership by 30–40%. Increases in the capacity factor and cooling stability of the systems with aggregated and variable loads are studied. The downside is that there is an increase in the compressor’s operation time by 50% with a variable load and by 25% per unit with aggregation, which means more frequent replacement in terms of motor hours. The approaches considered are applicable in a wide range of solar-powered facilities with a positive correlation between solar irradiation and energy demand, but the results are quite case-sensitive. The prospects of using excess refrigerant and soil for thermal energy storage instead of traditional electrochemical batteries are considered. Full article
(This article belongs to the Special Issue Recent Advances in Solar Cells and Photovoltaic Systems)
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9 pages, 2911 KiB  
Communication
Effects of Growth Temperature on the Morphological, Structural, and Electrical Properties of CIGS Thin Film for Use in Solar Cell Applications
by Hoang Lam Nguyen, Hyosang Lee, Shoyebmohamad F. Shaikh, Hassnain Abbas Khan, Mohaseen S. Tamboli, Jae Hak Jung and Nguyen Tam Nguyen Truong
Energies 2023, 16(11), 4467; https://doi.org/10.3390/en16114467 - 01 Jun 2023
Viewed by 1176
Abstract
Cu-In-Ga-Se nanoparticles (NPs) were synthesized using a colloidal route process. The effects of growth temperature (GT) on the properties of CuInGaSe2 (CIGS) thin films made from these nanoparticles were investigated using TEM, PL, XRD, and SEM techniques. The Cu-In-Ga-Se NPs were synthesized at [...] Read more.
Cu-In-Ga-Se nanoparticles (NPs) were synthesized using a colloidal route process. The effects of growth temperature (GT) on the properties of CuInGaSe2 (CIGS) thin films made from these nanoparticles were investigated using TEM, PL, XRD, and SEM techniques. The Cu-In-Ga-Se NPs were synthesized at growth temperatures ranging from 90 °C to 105 °C and then annealed at 550 °C for 7 min under a Se ambient. The resulting CIGS thin film, formed from Cu-In-Ga-Se NPs synthesized at a GT of 90 °C (referred to as GT90-CIGS), showed a tetragonal structure, large grain size, and high sunlight absorption. It had a band gap energy (Eg) of approximately 0.94 eV. Non-vacuum GT90-CIGS-based solar cells were investigated and fabricated using varying thicknesses of a CdS buffer layer. The maximum power conversion efficiency achieved was approximately 8.3% with an optimized device structure of Al/ITO/ZnO/CdS/CIGS/Mo. Full article
(This article belongs to the Special Issue Recent Advances in Solar Cells and Photovoltaic Systems)
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