{"title":"Very short-term probabilistic and scenario-based forecasting of solar irradiance using Markov-chain mixture distribution modeling","authors":"Joakim Munkhammar","doi":"10.1016/j.seja.2024.100057","DOIUrl":"https://doi.org/10.1016/j.seja.2024.100057","url":null,"abstract":"<div><p>This study investigates probabilistic and scenario-based forecasting of solar irradiance with Markov-chain mixture (MCM) distribution modeling, Persistence Ensemble (PeEn) and Climatology. Forecasts from MCM models with uniform and empirical emission distribution settings, respectively, are compared with PeEn and Climatology in terms of probabilistic forecasting performance. The MCM model is also extended with scenario generation capabilities and compared to scenario generation of the Climatology by means of Monte Carlo sampling. Forecasts were made on minute resolution normalized solar irradiance, i.e. the clear-sky index, from National Renewable Energy Laboratory and Swedish Meteorological and Hydrological Institute for two climatic regions: Oahu, Hawaii, USA and Norrköping, Sweden, respectively. Results show that the MCM models are neither necessarily the most reliable, nor the sharpest in terms of Prediction Normalized Average Width (PINAW), but they are the most accurate in terms of Continuous Ranked Probability Score (CRPS). MCM models with uniform and empirical emission distribution settings perform similar in the tested probabilistic forecasting metrics. In terms of scenario forecasting, MCM models with <span><math><mrow><mi>N</mi><mo>=</mo><mn>30</mn></mrow></math></span> perform similar in probability distribution goodness-of-fit and autocorrelation Mean Absolute Error (MAE) and superior to <span><math><mrow><mi>N</mi><mo>=</mo><mn>2</mn></mrow></math></span> and <span><math><mrow><mi>N</mi><mo>=</mo><mn>10</mn></mrow></math></span> number of states. Mathematically, forecasts from the MCM model with empirical distribution setting are shown to correspond to PeEn and Climatology forecasts given special settings of the MCM model. Based on the conclusions, the suggestion is to use the MCM scenario forecast generator with uniform emission distribution setting as benchmark for scenario forecasts of very short-term solar irradiance.</p></div>","PeriodicalId":101174,"journal":{"name":"Solar Energy Advances","volume":"4 ","pages":"Article 100057"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S266711312400007X/pdfft?md5=c1a754a3e6e8355da034b86914cac611&pid=1-s2.0-S266711312400007X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140138806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abdelhadi Mortadi , El Mokhtar El Hafidi , Hamid. Nasrellah , Mohamed Monkade , Reddad El Moznine
{"title":"Investigation of bandgap grading on performances of perovskite solar cell using SCAPS-1D and impedance spectroscopy","authors":"Abdelhadi Mortadi , El Mokhtar El Hafidi , Hamid. Nasrellah , Mohamed Monkade , Reddad El Moznine","doi":"10.1016/j.seja.2024.100056","DOIUrl":"https://doi.org/10.1016/j.seja.2024.100056","url":null,"abstract":"<div><p>The optimization the bandgap of a solar cell is an important consideration to achieve better high efficiency. The ideal bandgap for a solar cell would be one that matches the energy of photons in the solar spectrum, allowing for the efficient absorption of light and conversion into electricity.In the current study; the performance of the perovskite-based solar cells was investigated numerically in band gap from 1.55 to 1.67 (eV) using the one-dimensional SCAPS simulation software not only for the current-voltage characteristics but also for the complex impedance (Z*). The effects of band gap energy of the perovskite absorber layer were evaluated from the J-V curves have shown a maximum efficiency is achieved at 1.61 (eV).From the analysis of the complex impedance (Z*) data only one maximum was observed in the Nyquist and Bode plots. In this case; further analysis war carried to explorethe complex modulus (M*) spectra. Therefore this analysis revealed the existence of tow clears maxima in the Nyquist and Bode plots. The de-convolution approach allowed us to identify the origin of each relaxation. In addition the electrical parameters such as the relaxation time (τ<sub>1</sub>), and the (τ<sub>2</sub>) related to the electron recombination and ionic transport were extracted. Moreover, a good correlation was obtained between all parameters from the I-V and complex modulus (M*) data to explain the maximum efficiency achieved at 1.61 (eV).These studies basically the combinationof the complex impedance (Z*) and modulus (M*) provide an appropriate path for the optimization of the solar cell efficiency.</p></div>","PeriodicalId":101174,"journal":{"name":"Solar Energy Advances","volume":"4 ","pages":"Article 100056"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667113124000068/pdfft?md5=9f8245f22edbecf540314c64319202fe&pid=1-s2.0-S2667113124000068-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140209476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Christopher Pourier, Francisco Beltrán, Nelson Sommerfeldt
{"title":"Solar photovoltaic/thermal (PVT) technology collectors and free cooling in ground source heat pump systems","authors":"Christopher Pourier, Francisco Beltrán, Nelson Sommerfeldt","doi":"10.1016/j.seja.2023.100050","DOIUrl":"10.1016/j.seja.2023.100050","url":null,"abstract":"<div><p>Ground source heat pump (GSHP) systems offer a low carbon heating and cooling solution for the decarbonization of buildings. As global temperatures rise, the cooling requirements of buildings will grow, even in regions where cooling systems have been historically uncommon due to their colder climate, such as Sweden. The combination of free cooling (FC) with GSHPs seems like a natural way to meet the increasing cooling needs, since the heat extracted from the building during the summer months can be injected into the ground to potentially regenerate the borehole field and enhance heat pump performance. However, a technology that is generally integrated with GSHP systems for borehole regeneration are photovoltaic/thermal collectors. This study investigates the performance of a ground source heat pump system with free cooling for a multi-family building in Stockholm, Sweden, and the interference on the free cooling capabilities of the system when photovoltaic/thermal collectors are present. The results demonstrate that the integration of PVT and FC not only maintains the cooling supply but also enhances heat pump performance, all the while reducing borehole length and land area requirements.</p></div>","PeriodicalId":101174,"journal":{"name":"Solar Energy Advances","volume":"4 ","pages":"Article 100050"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667113123000189/pdfft?md5=7d49b6c065f6a67df755176c52cc3bb7&pid=1-s2.0-S2667113123000189-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139393203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Damu Murali , Iván P. Acosta-Pazmiño , Alexander Loris , Abel Climente García , Stefano Benni , Francesco Tinti , João Gomes
{"title":"Experimental assessment of a solar photovoltaic-thermal system in a livestock farm in Italy","authors":"Damu Murali , Iván P. Acosta-Pazmiño , Alexander Loris , Abel Climente García , Stefano Benni , Francesco Tinti , João Gomes","doi":"10.1016/j.seja.2024.100051","DOIUrl":"10.1016/j.seja.2024.100051","url":null,"abstract":"<div><p>This paper presents an experimental evaluation of the performance of a solar photovoltaic-thermal (PVT) system in a swine farm at Mirandola in Italy. In this project named RES4LIVE, funded by the EU’s Horizon 2020 program, a PVT system is installed to replace fossil fuel consumption in one of the barns on the farm. The electrical energy from the collectors is utilized to operate the heat pump and provide electricity to the barn, whereas the thermal energy from the collector is stored in a borehole thermal energy storage (BTES) for further use by a 35 kW heat pump. The hybrid solar field consists of 24 covered PVT flat plate collectors (7.68 kW<span><math><msub><mrow></mrow><mrow><mi>e</mi><mi>l</mi></mrow></msub></math></span> and 25 kW<span><math><msub><mrow></mrow><mrow><mi>t</mi><mi>h</mi></mrow></msub></math></span>) with a total aperture area of 39.3 m<span><math><msup><mrow></mrow><mrow><mn>2</mn></mrow></msup></math></span>, which can increase the temperature of the heat transfer fluid (HTF) to up to 40 °C. The PVT system is connected to a modular solar central (SC) with a standardized design that can also be used for other similar applications. The hybrid solar system complemented by energy storage is expected to save approximately 20,850 kg CO<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>/year. The data collected from the PVT system, SC, and BTES are rigorously analyzed to evaluate its overall performance. A comprehensive performance assessment reveals the capability of the solar system to reduce carbon emissions and effectively replace fossil fuel consumption in the agricultural sector.</p></div>","PeriodicalId":101174,"journal":{"name":"Solar Energy Advances","volume":"4 ","pages":"Article 100051"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667113124000019/pdfft?md5=375f96fcde0d2693fa916c7f0db4ec61&pid=1-s2.0-S2667113124000019-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139393653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Julia M. Groza , Seyyed Ali Sadat , Koami S. Hayibo , Joshua M. Pearce
{"title":"Using a ledger to facilitate autonomous peer-to-peer virtual net metering of solar photovoltaic distributed generation","authors":"Julia M. Groza , Seyyed Ali Sadat , Koami S. Hayibo , Joshua M. Pearce","doi":"10.1016/j.seja.2024.100064","DOIUrl":"10.1016/j.seja.2024.100064","url":null,"abstract":"<div><p>To assist electric utilities to overcome limitations of centralized billing and encourage distributed production of solar photovoltaic (PV) electricity, this study designs and assesses a novel open-source autonomous virtual utility to monitor users and enable peer-to-peer trading. This study provides system design and software implementation of the concept using blockchain technology written in Solidity and Truffle. A set of smart contracts adds users to a system and monitors their demand, PV generation, and facilitates transactions between users on an hourly basis when one user has PV-generated excess electricity, and another has demand. Unit tests for each of the contracts’ methods are developed in Solidity, and data on gas usage and costs is collected. Once the contracts have been written and evaluated, a JavaScript simulation is developed to use the contracts on real load and PV generation data for one year on an hourly basis. The results of two case studies are quantified: 1) true peers, where all houses are prosumers with rooftop PV, and 2) intermittent transition case, where PV deployment and demand are more varied. The results found that with ten users in the system, the true peers case study resulted in an uneconomic number of exchanges, but the intermittent transition case study resulted in more than a factor of twenty increases in exchanges and net cost savings. The savings more than doubles for both cases when time of use pricing is in effect. The system utility increases with more variability of PV production across participating users and is recommended for utilities targeting increases in distributed generation during the energy transition.</p></div>","PeriodicalId":101174,"journal":{"name":"Solar Energy Advances","volume":"4 ","pages":"Article 100064"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667113124000147/pdfft?md5=fee84bf5e801ee3f4761909b49c9af07&pid=1-s2.0-S2667113124000147-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141985375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Unveiling the Potential of Infrared Thermography in Quantitative Investigation of Potential-Induced Degradation in Crystalline Silicon PV Module","authors":"Ravi Kumar, Vishal E. Puranik, Rajesh Gupta","doi":"10.1016/j.seja.2023.100049","DOIUrl":"10.1016/j.seja.2023.100049","url":null,"abstract":"<div><p>Potential-induced degradation-shunting (PID-s) is a severe degradation mechanism in photovoltaic (PV) cells that significantly impacts module performance. Regular monitoring and quantitative assessment of PID-s are crucial for ensuring long-term reliability of PV systems. Current-voltage (<em>I-V</em>) characteristics and electroluminescence (EL) imaging are commonly used for quantitative performance evaluation of PID-s affected PV modules. However, conducting <em>I-V</em> measurements is time-consuming when performed across large PV installations, while EL imaging has limitations for severely PID-s affected cells with no EL emission. This article proposes the use of inverse infrared (IR<sub>INV</sub>) thermography as an alternative investigation technique for PID-s in a PV module. IR<sub>INV</sub> imaging is fast and also effectively maps the severely PID-s affected cells in a PV module. This article unveils the potential of IR<sub>INV</sub> thermography in quantitative investigation of PID-s in crystalline silicon PV modules. The module level investigations present insights into the correlations between cell temperature and power output under different imaging conditions using Pearson correlation. Results indicate that steady-state operation with medium input current provides the most suitable condition for quantitative PID-s investigation. Furthermore, cell level analysis of temperature distribution and its variation with PID-s progression has been investigated using histogram and kernel density estimation (KDE) statistical tools, revealing distinct patterns as PID-s progresses. A PID-s severity index is proposed based on KDE, providing a quantitative measure of PID-s severity in cells within a PV module. This work provides valuable insights into the use of IR<sub>INV</sub> thermography as an alternative technique for assessment of PID-s in PV module inspection.</p></div>","PeriodicalId":101174,"journal":{"name":"Solar Energy Advances","volume":"4 ","pages":"Article 100049"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667113123000177/pdfft?md5=754b02b037d0a5f55ceb4c23bc2c9a59&pid=1-s2.0-S2667113123000177-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138988277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Samuel Gyamfi , Bernard Aboagye , Michael Obeng , Forson Peprah
{"title":"Criticality and severity of adverse effects of the sun on performance of solar PV systems","authors":"Samuel Gyamfi , Bernard Aboagye , Michael Obeng , Forson Peprah","doi":"10.1016/j.seja.2024.100058","DOIUrl":"https://doi.org/10.1016/j.seja.2024.100058","url":null,"abstract":"<div><p>The sun is an inexhaustible source of energy that could be harnessed by solar photovoltaic (PV) technology to supply all the present and future global electricity needs. However, using the sun as source of energy for PV systems to generate electricity is associated with numerous adverse effects on the performance of PV systems. This paper aims to provide comprehensive information about the criticality and severity of adverse effects of the sun on performance of PV systems. Through a detailed literature review, risk priority number (RPN) analysis was performed to quantify the relative degree of a combination of criticality and severity of adverse effects of the sun on performance of PV systems under initial exposure to solar radiation, high solar radiation, low solar radiation, intermittent solar radiation, and no solar radiation conditions. Finally, it suggests strategies to curtail these effects to ensure sustainability of PV systems. It was concluded that under each condition of solar radiation intensity, the performance of PV systems is adversely affected. However, the degree of criticality and severity of these adverse effects vary under various solar radiation conditions. The combined effects of the determinants of low solar radiation make low solar radiation condition the dominant adverse effects with the highest RPN. Consequently, the degree of criticality and severity of the adverse effects on the performance of PV systems is highest under low solar radiation condition. Thus, the determinants of low solar radiation should be given priority consideration in the design, installation, operation, and maintenance of PV systems.</p></div>","PeriodicalId":101174,"journal":{"name":"Solar Energy Advances","volume":"4 ","pages":"Article 100058"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667113124000081/pdfft?md5=c508d6d1ac77288be7cdad1373c4eb98&pid=1-s2.0-S2667113124000081-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140341956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Selective transmission and absorption in oxide-based nanofluid optical filters for PVT collectors","authors":"Mohit Barthwal , Dibakar Rakshit","doi":"10.1016/j.seja.2024.100078","DOIUrl":"10.1016/j.seja.2024.100078","url":null,"abstract":"<div><div>The division of the solar spectrum in a photovoltaic thermal (PVT) collector serves a dual purpose for separate heat and electricity applications. One part of the spectrum is used for generating electricity, which prevents the excessive temperature increase of the photovoltaic cells, while the other part facilitates a thermal gain. This concept is termed as spectral beam splitting (SBS). In this work, the implementation of SBS in a PVT collector using a nanofluid-based optical filter is investigated. An optical model, based on Rayleigh scattering, is developed to analyze various oxide-based nanofluids for SBS. The purpose of the model is to determine the transmittance and absorbance of ZnO, Fe<sub>3</sub>O<sub>4</sub>, and SiO<sub>2</sub>-based nanofluids across the solar spectrum range of 300 nm to 2500nm. The model takes into account the complex refractive indices of the particles and base fluids to determine the scattering, extinction, and absorption efficiencies of the nanofluids being studied. The oxide-based nanofluids outperformed the polypyrrole and Cu<sub>9</sub>S<sub>5</sub>-based nanofluids in terms of spectral transmission and absorption of sunlight. Water, de-ionized water, and ethylene glycol are used as base fluids. The nanoparticle-base fluid duos determine the agglomeration and size of the particles in the nanofluid and hence affect their optical properties. Therefore, ZnO-based nanofluids are synthesized in-house to correlate the effects of agglomeration and particle size on the optical properties of the nanofluids derived from the developed theoretical model. Using ethylene glycol as a base fluid has a significant impact on reducing agglomeration, resulting in smaller and more stable nanoparticles, in comparison to using de-ionized water. Furthermore, the influence of particle size, dispersion in the base fluid, and optical length on the optical properties of the nanofluid are examined. It is concluded that adjusting the size (dispersion), concentration, and optical length of the particles can allow for the efficient use of the solar spectrum to generate both electrical and thermal energy.</div></div>","PeriodicalId":101174,"journal":{"name":"Solar Energy Advances","volume":"4 ","pages":"Article 100078"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Design and modeling of PV-integrated Double Skin Facades and application to retrofit buildings","authors":"Somil Yadav , Caroline-Hachem Vermette , Md.Nadim Heyat Jilani , Gilles Desthieux","doi":"10.1016/j.seja.2024.100067","DOIUrl":"10.1016/j.seja.2024.100067","url":null,"abstract":"<div><p>Double Skin Façade (DSF) system comprises two glazing layers with a ventilated cavity. Integrating photovoltaic (PV) modules within the outer layer of DSFs offers an efficient method for electricity generation. Current tools for modeling and analyzing DSF systems are complex and resource-intensive, lacking the capability to evaluate the performance of innovative PV-DSF systems during the early design stage. This study develops a mathematical model to evaluate the electrical and thermal performance of PV-DSF systems, considering architectural design elements such as PV color and relative orientation. Based on an energy balance approach, the model is particularly suited for designing PV-DSF systems in heritage buildings, which often have color and relative orientation constraints. The model is applied to assess the performance of PV-DSF systems with conventional clear glass PV and colored front glass PV modules under the climatic conditions of Montreal, Canada. Results indicated that conventional clear glass PV module exhibit higher PV cell temperature than colored PV modules due to greater transmissivity, with peak temperature differences at noon of 5.5 °C, 6.2 °C, and 6.5 °C for orange, blue, and gray PV modules, respectively. On the contrary, the influence of PV's color front glass on room air temperature is non-significant. Furthermore, the optimal orientation for maximum energy yield is not always south-facing; it depends on the hourly distribution of the beam, diffuse solar irradiation, and ambient air temperature. For Montreal, west-facing DSFs produce more electrical and thermal energy on a summer design day because the hourly distribution of beam radiation is skewed towards afternoon hours.</p></div>","PeriodicalId":101174,"journal":{"name":"Solar Energy Advances","volume":"4 ","pages":"Article 100067"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667113124000172/pdfft?md5=b9865f8d1039451a31e0644dac9282ad&pid=1-s2.0-S2667113124000172-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142168836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Felix Pag, Mateo Jesper, Klaus Vajen, Ulrike Jordan
{"title":"Oversizing solar heating plants in industry: A cost-effective solution to increase solar fractions","authors":"Felix Pag, Mateo Jesper, Klaus Vajen, Ulrike Jordan","doi":"10.1016/j.seja.2024.100071","DOIUrl":"10.1016/j.seja.2024.100071","url":null,"abstract":"<div><div>Solar heat for industrial processes (SHIP) is one of the solutions to decarbonise industrial heat demand and reduce CO<sub>2</sub>-emissions. One of the barriers to the promotion of solar heat, often cited in addition to economic aspects, is the low share that solar heat is able to provide. The VDI 3988 guideline is a standardised methodology for pre-designing the collector field and estimating the specific yield. It focuses on the summer heat demand which results in comparably low solar fractions especially when the heat demand profile is seasonal. Based on TRNSYS simulations, this study analyses the reduction of the specific solar yield and the impact on the solar fraction and LCOH when the collector area is oversized. It is found that the specific yield decreases, as expected, with increasing collector area due to solar excess heat, with this effect being more significant for non-seasonal process heat load profiles. Furthermore, the LCOH is stable or can even be increased by a moderate oversizing of 25..50 % compared to the design of the VDI 3988 design due to economies of scale.</div></div>","PeriodicalId":101174,"journal":{"name":"Solar Energy Advances","volume":"4 ","pages":"Article 100071"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142424715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}