Solar CompassPub Date : 2025-09-01Epub Date: 2025-07-02DOI: 10.1016/j.solcom.2025.100135
Matt Birchall, Shanza Neda Hussain, Aritra Ghosh
{"title":"Review of agrivoltaic demonstration site studies with comparable configurations for a UK-based application","authors":"Matt Birchall, Shanza Neda Hussain, Aritra Ghosh","doi":"10.1016/j.solcom.2025.100135","DOIUrl":"10.1016/j.solcom.2025.100135","url":null,"abstract":"<div><div>Agrivoltaics is a renewable energy technology which has undergone rapid growth and development over recent years. The dual-land-use solution is considered a sustainable approach to the competing interests of agriculture and energy production. There are a growing number of published studies researching this field, generating evidence of the additional microclimatic benefits of agrivoltaics in reducing heat stress, increasing soil moisture content and enhancing biodiversity. Through the use of a unique sifting process, ten comparable studies are reviewed and explored in relation to a UK adoption strategy for agrivoltaics, comprising <strong>published</strong> articles on similar <strong>climatic</strong> conditions, <strong>solar irradiance</strong>, and <strong>agricultural crops</strong>. Additionally, the benefits of <strong>microclimate</strong> and <strong>economic</strong> aspects have been discussed, highlighting the protection provided to the vegetation due to the presence of photovoltaics while creating a favourable condition locally by regulating the conditions under PV. A scoring matrix was devised to facilitate evaluation based on comprehensiveness of analysis and the quality of information presented, ensuring alignment with the selection criteria established in this study. This matrix serves as a systematic guideline for assessing relevant literature on the topic that suggests the best approach. Simultaneously, a dual income benefit for farmers while achieving the solar target for the county. This review provides an overview of the UK context. It offers insight into how an agrivoltaic future might be realised and recommends key parameters of ‘best practice’ which should be considered when designing a UK based agrivoltaic test study.</div></div>","PeriodicalId":101173,"journal":{"name":"Solar Compass","volume":"15 ","pages":"Article 100135"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144662087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Solar CompassPub Date : 2025-09-01Epub Date: 2025-04-06DOI: 10.1016/j.solcom.2025.100117
Mr. Saba Kalam , Dr. Sanjay Vashishtha , Dr. Calvin Sophistus King , Dr. Lidice Vaillant Roca
{"title":"Implementing task-based learning in multilingual solar rooftop training: A case study from the photovoltaic laboratory – ISA STAR center, University of Havana","authors":"Mr. Saba Kalam , Dr. Sanjay Vashishtha , Dr. Calvin Sophistus King , Dr. Lidice Vaillant Roca","doi":"10.1016/j.solcom.2025.100117","DOIUrl":"10.1016/j.solcom.2025.100117","url":null,"abstract":"<div><div>Task-Based Learning (TBL), a method having its roots in language instruction. This method uses authentic, real-world tasks when learners are acquiring skills. The present study reports the implementation of TBL in a multilingual setting, in a Solar Rooftop Training Program hosted at the Photovoltaic Laboratory of the University of Havana, which is also a Solar Technology Application and Resource Center (STAR – C), established by International Solar Alliance (ISA). The program is conducted at this STAR-C as part of ISA's solar capacity building initiative. The research highlights the significance of TBL for technical training programs with an in-depth explanation of the task design, its implementation and the impact on learning. The impacts were documented through multiple formats of assessments multiple times, self-assessment ratings of confidence levels and feedback on multiple parameters upon completion of the program. The results indicate TBL's efficacy in enhancing participants' learning of solar rooftop technologies, with several exposures to technical proficiencies through tasks, and promotion of collaboration in team based learning environments. This study provides insights for educators facing comparable multilingual and technical challenges a methodology which could improve learning effectiveness especially in industry specific training areas. The study includes discussions on the challenges due to language and equipment related barriers, and the actions required to overcome these barriers. The study concludes with recommendations of how this can be extended to various other contexts of capacity building in solar photovoltaics.</div></div>","PeriodicalId":101173,"journal":{"name":"Solar Compass","volume":"15 ","pages":"Article 100117"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144205677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mathematical modeling and optical-thermal analysis of a novel solar beam down parabolic dish concentrator","authors":"Dev Banitia , Siddharth Ramachandran , Satya Sekhar Bhogilla , P.K. Vijayan","doi":"10.1016/j.solcom.2025.100137","DOIUrl":"10.1016/j.solcom.2025.100137","url":null,"abstract":"<div><div>This paper presents a comprehensive examination of the mathematical modeling and optical-thermal analysis of an innovative solar beam-down parabolic dish concentrating (BD-PDC) collector. This study aims to develop a novel design that addresses key challenges such as heat transfer losses and extensive structural requirements inherent in traditional concentrated solar power systems. The innovative BD-PDC system integrates a secondary hyperbolic reflector with a primary parabolic dish collector, directing concentrated solar radiation towards a receiver at ground level. A comprehensive mathematical model was developed and analyzed to assess the optical and thermal performance of the proposed system. The research utilizes the Monte Carlo ray-tracing methodology for optical analysis to optimize various system components and create a prototype. Furthermore, to evaluate the performance of the BD-PDC system under real-world conditions, this study incorporates direct normal irradiance (DNI) data from Jodhpur, India. The diurnal simulations indicate that the BD-PDC exhibits considerable effectiveness in harnessing and focusing solar radiation, yielding peak thermal efficiencies of 76.8 % while generating solar thermal power of 16.51 kWh per day. An assessment of system efficacy was conducted across various seasonal intervals, with peak performance noted during the winter season. This investigation provides critical insights into the design and development of BD-PDC-type solar concentrator systems, contributing to the advancement of more efficient and sustainable solar energy technologies.</div></div>","PeriodicalId":101173,"journal":{"name":"Solar Compass","volume":"15 ","pages":"Article 100137"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144860588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Solar CompassPub Date : 2025-09-01Epub Date: 2025-05-27DOI: 10.1016/j.solcom.2025.100129
Kashish Kumar , Gurubalan Annadurai , Alok Singh
{"title":"Experimental investigation on LiCl-KCOOH blend for enhancing hybrid liquid desiccant–vapour compression system performance","authors":"Kashish Kumar , Gurubalan Annadurai , Alok Singh","doi":"10.1016/j.solcom.2025.100129","DOIUrl":"10.1016/j.solcom.2025.100129","url":null,"abstract":"<div><div>Conventional vapour compression system (VCS) consumes a substantial amount of energy to maintain human thermal comfort, while its inability to control humidity precisely has led to the exploration of alternative cooling technologies. Among all alternative cooling technologies, the liquid desiccant system (LDS) has gained attention as an energy-efficient and sustainable solution offering precise humidity control. The performance of LDS is strongly influenced by the desiccant type, with desiccant blends demonstrating superior moisture absorption compared to single desiccants. Among these, a blend of lithium chloride (LiCl) and potassium formate (KCOOH) shows promising dehumidification performance with reduced corrosion potential, yet remains underexplored. This study investigates the optimal blend ratio of LiCl-KCOOH through experimental analysis within a hybrid liquid desiccant vapour compression (LDVC) system. The research compares the dehumidification performance of this blend against a pure LiCl solution, employing an optimal mixture design technique to develop empirical correlations for key performance parameters. These correlations were validated using analysis of variation (ANOVA) analysis. The influence of the liquid-to-gas (<span><math><mrow><mi>L</mi><mo>/</mo><mi>G</mi></mrow></math></span>) ratio on dehumidifier performance and the economic feasibility of the desiccant blend were also examined. Results reveal that the optimal blend comprises 37 % LiCl and 18 % KCOOH, enhancing the moisture removal rate (<span><math><mover><mtext>MRR</mtext><mi>˙</mi></mover></math></span>) and dehumidification effectiveness (<span><math><msub><mrow><mi>ε</mi></mrow><mtext>DEH</mtext></msub></math></span>) by approximately 12.3 % and 10.5 %, respectively, under hot and humid conditions. The primary contribution of this paper is the identification of the optimal desiccant blend composition of LiCl-KCOOH and the development of empirical models to evaluate the dehumidification performance of a hybrid LDVC system using this blend.</div></div>","PeriodicalId":101173,"journal":{"name":"Solar Compass","volume":"15 ","pages":"Article 100129"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144240457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Solar CompassPub Date : 2025-09-01Epub Date: 2025-07-03DOI: 10.1016/j.solcom.2025.100134
Ali Alkhafa , Malik Ghazi Kadhim , Faris A. alhaddad , Aymen Saad
{"title":"Performance analysis of hybrid renewable energy systems under variable operating conditions","authors":"Ali Alkhafa , Malik Ghazi Kadhim , Faris A. alhaddad , Aymen Saad","doi":"10.1016/j.solcom.2025.100134","DOIUrl":"10.1016/j.solcom.2025.100134","url":null,"abstract":"<div><div>Hybrid renewable electricity structures (HRES) offer a promising technique to address the intermittency of standalone renewable resources, but their overall performance under variable environmental situations remains tough. This study evaluates a solar-wind-battery hybrid gadget via Python-primarily based dynamic modeling, integrating real-global datasets for sun irradiance, wind velocity, temperature, and residential load profiles. The system's efficiency, reliability, and price had been analyzed underneath each ideal conditions (excessive irradiance, stable wind) and risky conditions (low irradiance, erratic wind). Results show sun dominates electricity production (62 % contribution) during best situations, even as wind supplements nighttime demand. Volatile situations substantially increase the Loss of Load Probability (LOLP) from 0.8 % to 12.4 % and elevate the Levelized Cost of Energy (LCOE) by way of 64 %, highlighting essential sensitivity to environmental fluctuations. The 100-kWh battery reduces grid dependency but proves inadequate at some point of multi-day low-generation intervals, requiring capacity expansion. Sensitivity analysis exhibits a 20 % wind speed discount will increase LCOE by means of 36 %, demonstrating wind's disproportionate fee impact as compared to solar. While HRES drastically beautify reliability over single-source systems, they require optimized garage and different era to cope with intermittency. Future paintings should explore AI-driven predictive manipulate and inexperienced hydrogen integration to stabilize long-time period overall performance, presenting actionable insights for resilient hybrid device layout in climate-susceptible regions.</div></div>","PeriodicalId":101173,"journal":{"name":"Solar Compass","volume":"15 ","pages":"Article 100134"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144562791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Solar CompassPub Date : 2025-09-01Epub Date: 2025-08-11DOI: 10.1016/j.solcom.2025.100138
Frederick Abangba Akendola , Clement Adekunle Komolafe , Eric Ofori-Ntow Jnr , Richard Opoku , George Yaw Obeng
{"title":"Design and integration of a solar photovoltaic system for mechanized and sustainable cocoa pod splitting","authors":"Frederick Abangba Akendola , Clement Adekunle Komolafe , Eric Ofori-Ntow Jnr , Richard Opoku , George Yaw Obeng","doi":"10.1016/j.solcom.2025.100138","DOIUrl":"10.1016/j.solcom.2025.100138","url":null,"abstract":"<div><div>Cocoa production is crucial to advancing economies. Conventional manual cocoa pod splitting is inefficient, labor-intensive, and hazardous, but mechanical cocoa pod splitting is underutilized due to unreliable energy sources. This research designs and integrates a solar photovoltaic (PV) system to power a cocoa pod-splitting machine for addressing the critical challenge of access to sustainable energy and postharvest handling technology in off-grid cocoa-growing communities. The design adopted an energy demand analysis, environmental assessment, system simulation and practical design implementation to validate the theoretical model and ensure enhanced operational efficiency, sustainability and reliability. An independent PV system consisting of five 275 W monocrystalline panels, 24 V, 40 A charge controller, 24 V hybrid GEL battery bank, and 1.3 hp DC motor was designed based on energy demand, theoretically modeled in MATLAB/Simulink and tested under real solar conditions in Ghana. The system demonstrated consistent energy supply to the machine, with sufficient autonomy for three operating days, whilst producing 5843.75 Wh/day, which surpasses the 4720.46 Wh/day energy requirement of the machine by 23.7%. Real-world performance aligned closely with simulation predictions, confirming the PV system’s viability, scalability and reliability. Analysis of variance conducted at a significance level of 0.05 to test for the statistical significance of differences in mean voltage supply across varying irradiance levels obtained an <span><math><mrow><mi>F</mi><mo>−</mo><mi>s</mi><mi>t</mi><mi>a</mi><mi>t</mi><mi>i</mi><mi>s</mi><mi>t</mi><mi>i</mi><mi>c</mi><mo>=</mo><mn>1.301</mn><mo><</mo><mi>F</mi><mo>−</mo><mi>c</mi><mi>r</mi><mi>i</mi><mi>t</mi><mi>i</mi><mi>c</mi><mi>a</mi><mi>l</mi><mo>=</mo><mn>3.354</mn></mrow></math></span>, and a <span><math><mrow><mi>P</mi><mo>−</mo><mi>v</mi><mi>a</mi><mi>l</mi><mi>u</mi><mi>e</mi><mo>=</mo><mn>0.289</mn><mo>></mo><mi>α</mi><mo>=</mo><mn>0.05</mn></mrow></math></span>, demonstrating the solar PV reliability in operational voltage under varying solar conditions. The outcome of the experiment indicated a splitting efficiency of 98.92 %, a separation efficiency of 91–96.5 % and a bean damage proportion of 1.03 % with a 60 cocoa pods/minute throughput. The study achieves up to 74% improvement while maintaining accessible, eco-friendly and sustainable energy independence relative to prior systems. In conclusion, a solar PV system was successfully developed and implemented to power a cocoa pod-splitting machine, which supplied sufficient, sustainable, reliable and eco-friendly energy to address energy challenges in off-grid cocoa farming communities. Tests showed that the performance of the solar-powered cocoa pod splitting machine was robust, demonstrating a significant improvement over previous systems. The integration of renewable energy improves sustainability, minimizes reliance on fossil fuel an","PeriodicalId":101173,"journal":{"name":"Solar Compass","volume":"15 ","pages":"Article 100138"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144867210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Solar CompassPub Date : 2025-09-01Epub Date: 2025-06-06DOI: 10.1016/j.solcom.2025.100131
Ramatou Saré , Edward Dodzi Amekah , Mamoudou Saria , Idrissa Sourabié , Emmanuel Wendsongré Ramdé , Martial Zoungrana , Issa Zerbo
{"title":"Effect of leakage current on the performance of a pc-Si PV cell using a 3-D model","authors":"Ramatou Saré , Edward Dodzi Amekah , Mamoudou Saria , Idrissa Sourabié , Emmanuel Wendsongré Ramdé , Martial Zoungrana , Issa Zerbo","doi":"10.1016/j.solcom.2025.100131","DOIUrl":"10.1016/j.solcom.2025.100131","url":null,"abstract":"<div><div>This study examines the effect of electron losses on the performance of polycrystalline silicon photovoltaic (pc-Si PV) cells using a three-dimensional (3D) approach. Aging and degradation are identified as the primary causes of these losses, quantified by the intrinsic junction recombination velocity (Sf<sub>0</sub>). The analysis focuses on the p-n junction, where carrier losses significantly influence key performance metrics such as power conversion efficiency (PCE) and shunt resistance (R<sub>sh</sub>). Simulation results indicate that as Sf<sub>0</sub> increases from 0 to a threshold of 1.790 × 10⁴ cm/s, the PCE and R<sub>sh</sub> decrease by approximately 20 % and 32 %, respectively. The study further demonstrates that a reduction in R<sub>sh</sub> from 1272.20 Ω.cm² to 5.48 Ω.cm² significantly increases the shunt current density, rising from 0 mA/cm² to 53.59 mA/cm², indicating elevated leakage currents. This work highlights the critical role of electron losses in determining the efficiency and stability of pc-Si PV cells. By employing a 3-D approach, the study provides valuable intuition into degradation mechanisms and suggests pathways for improving PV cell performance and durability.</div></div>","PeriodicalId":101173,"journal":{"name":"Solar Compass","volume":"15 ","pages":"Article 100131"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144313883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Solar CompassPub Date : 2025-09-01Epub Date: 2025-08-05DOI: 10.1016/j.solcom.2025.100136
Onyekachi Nwafor
{"title":"Integrated photovoltaic applications: Technological advancements, case studies, economic viability, policy implications, and environmental impact","authors":"Onyekachi Nwafor","doi":"10.1016/j.solcom.2025.100136","DOIUrl":"10.1016/j.solcom.2025.100136","url":null,"abstract":"<div><div>Integrated photovoltaic (PV) applications are at the forefront of sustainable energy innovation, merging energy generation with building materials, agriculture, transportation, and more. This study provides a comprehensive analysis of integrated PV systems, covering recent technological advancements in PV materials and efficiency, real-world case studies of building-integrated and dual-use PV projects, economic viability and market trends, policy and regulatory frameworks, and environmental impacts. We review breakthroughs such as high-efficiency multi-junction cells and perovskite solar cells, and examine building-integrated PV (BIPV) technologies that seamlessly incorporate solar modules into architecture. Through case studies across different regions and sectors, we highlight successes and challenges in deploying integrated PV—from solar facades on commercial buildings to agrivoltaic farms. A detailed economic analysis is presented, noting the dramatic decline in PV costs and the emerging business models and return on investment (ROI) for integrated systems. Policy implications are discussed, including government incentives, building codes, and renewable energy targets that influence PV integration. Environmental impact assessment shows significant carbon footprint reduction and sustainability benefits of PV integration throughout its lifecycle. The findings underscore that integrated PV systems not only advance renewable energy adoption but also provide multi-faceted benefits such as aesthetic integration, land-use efficiency, and greenhouse gas mitigation.</div></div>","PeriodicalId":101173,"journal":{"name":"Solar Compass","volume":"15 ","pages":"Article 100136"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144830686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"BIPV in India: Opportunities, challenges, and pathways for urban planning and smart cities","authors":"Kedar Mehta , Ravita Lamba , Sunanda Sinha , Nand Kumar","doi":"10.1016/j.solcom.2025.100133","DOIUrl":"10.1016/j.solcom.2025.100133","url":null,"abstract":"<div><div>As India urbanizes rapidly, sustainable energy solutions have become a priority to meet rising energy demands and mitigate environmental impacts. Building-Integrated Photovoltaics (BIPV) offer a promising approach to harness solar energy within urban infrastructure, transforming buildings into renewable energy assets. Unlike conventional rooftop PV systems, BIPV maximizes urban space utilization while enhancing architectural aesthetics and energy efficiency. However, the adoption of BIPV in India remains limited due to factors such as regulatory barriers, lack of standardized designs, and high initial costs. This study uses SWOT (Strengths, Weaknesses, Opportunities, Threats) and TOWS (Threats, Opportunities, Weaknesses, Strengths) analyses to assess the potential, opportunities, and challenges of BIPV in India’s urban planning. It then discusses policy implications and offers practical recommendations for implementation in Indian cities. Key findings of this study indicate that BIPV adoption in India can significantly contribute to urban sustainability by reducing carbon emissions, improving energy self-sufficiency, and lowering long-term operational costs. The SWOT and TOWS analysis reveal that while BIPV presents opportunities for smart urban integration, challenges such as high initial investments and lack of awareness must be addressed through targeted policies and incentives. Additionally, global case studies highlight successful BIPV implementations, providing valuable lessons for India’s urban planning strategies.</div></div>","PeriodicalId":101173,"journal":{"name":"Solar Compass","volume":"15 ","pages":"Article 100133"},"PeriodicalIF":0.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144549869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}