Antonius R. Burgers, Eric Tonnaer, Carel Kooij, B. V. Van Aken
When constructing solar farms, it is important to consider the impact on our living environment and on the use of farmland, ideally contributing to biodiversity and maintaining soil quality. In the Symbizon project, we are developing algorithms for the solar trackers that will balance both crop demands and solar electricity yield. We have simulated the soil irradiance in the farmed strips and determined the annual electricity yield. We varied the algorithm that determines the tracker angle as function of the conditions, including position of the sun, amount of irradiance on panels or on the soil etc. We compare the electricity yield with that of a HSAT PV system with twice the number of trackers and the soil irradiance with that of a field without PV. We show that, for all investigated algorithms, the soil irradiance is at least 60% of the single-use strip farming irradiance. In addition, the electricity production of the agri-PV system varies between 20% and 66% of an optimised HSAT PV system without farming. The next step will be to also optimise the tracker strategy to adapt to local conditions, e.g., allowing more light on the crops during low temperature humid conditions, but shading crops during hot and dry conditions, taking into account actual crop models instead of soil irradiance. Combined, the sum of the relative crop and electricity yield is always larger than 100%, showing that these agri-PV systems make better use of the available land for food and energy harvesting.
{"title":"Optimised Tracker Algorithm Enables an Agri-PV Plant With Organic Strip Farming and Solar Electricity Generation","authors":"Antonius R. Burgers, Eric Tonnaer, Carel Kooij, B. V. Van Aken","doi":"10.52825/agripv.v1i.543","DOIUrl":"https://doi.org/10.52825/agripv.v1i.543","url":null,"abstract":"When constructing solar farms, it is important to consider the impact on our living environment and on the use of farmland, ideally contributing to biodiversity and maintaining soil quality. In the Symbizon project, we are developing algorithms for the solar trackers that will balance both crop demands and solar electricity yield. We have simulated the soil irradiance in the farmed strips and determined the annual electricity yield. We varied the algorithm that determines the tracker angle as function of the conditions, including position of the sun, amount of irradiance on panels or on the soil etc. We compare the electricity yield with that of a HSAT PV system with twice the number of trackers and the soil irradiance with that of a field without PV. We show that, for all investigated algorithms, the soil irradiance is at least 60% of the single-use strip farming irradiance. In addition, the electricity production of the agri-PV system varies between 20% and 66% of an optimised HSAT PV system without farming. The next step will be to also optimise the tracker strategy to adapt to local conditions, e.g., allowing more light on the crops during low temperature humid conditions, but shading crops during hot and dry conditions, taking into account actual crop models instead of soil irradiance. Combined, the sum of the relative crop and electricity yield is always larger than 100%, showing that these agri-PV systems make better use of the available land for food and energy harvesting.","PeriodicalId":517222,"journal":{"name":"AgriVoltaics Conference Proceedings","volume":"46 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139896634","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}
This study presents an analysis of the economic viability of AgriVoltaics (AV) applied in the sugarcane-bioenergy sector in a hypothetical plant in the central region of the state of São Paulo, Brazil, using modal values and performance parameters typical of the 2019/2020 harvest season. The objective is to verify the economic viability, considering the technical aspects of the project, and agronomic, operational, and systemic requirements. The obtained results show a substantial increase in the combined economic margin, at 33,5%, a land use efficiency ratio (LER) of 108,6%, and a payback of investments around 9 years. The approach proved feasible for energy prices above US$ 49.21 MWh-1 . The greater operational gain was due to the optimization of land use, and the sharing of costs with the existing thermoelectric generation that uses residual sugarcane biomass, which allowed centralized management and a substantial increase in electrical generation. The higher relative incremental cost was resulting from the AgriVoltaics installation, adapted appropriately to the specific agronomic management practices required by sugarcane crops. The cost of the adapted AgriVoltaics installation found was US$ 0.96 per Watt peak. The approach proved economically viable, respecting the agronomic conditions of the crop and the optimized use of biomass-driven electrical thermalgeneration infrastructure.
{"title":"AgriVoltaics: Economic Viability of a Synergistic System in the Sugarcane Bioenergy Sector in Brazil","authors":"Mario Antonio Stefani, João Felema","doi":"10.52825/agripv.v1i.604","DOIUrl":"https://doi.org/10.52825/agripv.v1i.604","url":null,"abstract":"This study presents an analysis of the economic viability of AgriVoltaics (AV) applied in the sugarcane-bioenergy sector in a hypothetical plant in the central region of the state of São Paulo, Brazil, using modal values and performance parameters typical of the 2019/2020 harvest season. The objective is to verify the economic viability, considering the technical aspects of the project, and agronomic, operational, and systemic requirements. The obtained results show a substantial increase in the combined economic margin, at 33,5%, a land use efficiency ratio (LER) of 108,6%, and a payback of investments around 9 years. The approach proved feasible for energy prices above US$ 49.21 MWh-1 . The greater operational gain was due to the optimization of land use, and the sharing of costs with the existing thermoelectric generation that uses residual sugarcane biomass, which allowed centralized management and a substantial increase in electrical generation. The higher relative incremental cost was resulting from the AgriVoltaics installation, adapted appropriately to the specific agronomic management practices required by sugarcane crops. The cost of the adapted AgriVoltaics installation found was US$ 0.96 per Watt peak. The approach proved economically viable, respecting the agronomic conditions of the crop and the optimized use of biomass-driven electrical thermalgeneration infrastructure.","PeriodicalId":517222,"journal":{"name":"AgriVoltaics Conference Proceedings","volume":"10 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139895868","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}
Tarisai Kanyepi, Emmanuel Ambe Cheo, Eric Gankam Tambo, Alberto Federic Sanchez Santillano, L. Dibba, Demba Trewally, Mustapha Ceesay, D. Jallow
The projected increase in demand for food, water, and energy owing to systemic shocks has heightened the need for innovative solutions and integrated resource governance. The Agrovoltaics for Mali and Gambia (APV MaGa) Project, focuses on sustainable electricity production through agrovoltaics' triple land-use system and is leveraged with digital technologies. The project addresses The Gambia’s high food importation gap, growing dependency on fossil fuels for electricity generation, and high electricity tariffs. However, the nascence of agrovoltaics presents a new energy dimension that calls for increased coordination of sectoral policy and management, a domain of WEF nexus governance detached mainly from governance practice. Thus, a policy and institutional foresight of the potential implications of agrovoltaics’ integration is warranted, since Gambia’s decision-making for land, water, energy, and agriculture remains mainly sectoral. A qualitative research design was adopted, using a sample of twenty-eight key informative interviews, policy document analysis, and grey literature. Research findings show that the existing policy frameworks such as ‘Feed-in tariffs for excess RE, renewable energy funds, and capital subsidies can practically accommodate the frame of the agrovoltaics. However, clarification is required on the siting aspect of solar panels within the compartmentalized land policy structures. Institutionally, the Ministry of Energy’s nexus platform allows for technical coordination of agrovoltaics projects. However weak institutional harmonization, technical/financial incapacities, and overriding national interests due to sectoral bias present challenges. Therefore, harmonizing sectoral divergent policy provisions, interests, and prioritization of sustainability concerns will foster the pertinent integration of agrovoltaics for fast expansion.
{"title":"Analyzing Policy Framework of Agrovoltaics Across the Water Energy and Food (WEF) Nexus in The Gambia","authors":"Tarisai Kanyepi, Emmanuel Ambe Cheo, Eric Gankam Tambo, Alberto Federic Sanchez Santillano, L. Dibba, Demba Trewally, Mustapha Ceesay, D. Jallow","doi":"10.52825/agripv.v1i.696","DOIUrl":"https://doi.org/10.52825/agripv.v1i.696","url":null,"abstract":"The projected increase in demand for food, water, and energy owing to systemic shocks has heightened the need for innovative solutions and integrated resource governance. The Agrovoltaics for Mali and Gambia (APV MaGa) Project, focuses on sustainable electricity production through agrovoltaics' triple land-use system and is leveraged with digital technologies. The project addresses The Gambia’s high food importation gap, growing dependency on fossil fuels for electricity generation, and high electricity tariffs. However, the nascence of agrovoltaics presents a new energy dimension that calls for increased coordination of sectoral policy and management, a domain of WEF nexus governance detached mainly from governance practice. Thus, a policy and institutional foresight of the potential implications of agrovoltaics’ integration is warranted, since Gambia’s decision-making for land, water, energy, and agriculture remains mainly sectoral. A qualitative research design was adopted, using a sample of twenty-eight key informative interviews, policy document analysis, and grey literature. Research findings show that the existing policy frameworks such as ‘Feed-in tariffs for excess RE, renewable energy funds, and capital subsidies can practically accommodate the frame of the agrovoltaics. However, clarification is required on the siting aspect of solar panels within the compartmentalized land policy structures. Institutionally, the Ministry of Energy’s nexus platform allows for technical coordination of agrovoltaics projects. However weak institutional harmonization, technical/financial incapacities, and overriding national interests due to sectoral bias present challenges. Therefore, harmonizing sectoral divergent policy provisions, interests, and prioritization of sustainability concerns will foster the pertinent integration of agrovoltaics for fast expansion.","PeriodicalId":517222,"journal":{"name":"AgriVoltaics Conference Proceedings","volume":"201 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139896131","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}
Lucía Romina Palazzo, Gabriela Lourdes Acosta, Pilar Gil Montenegro, Azwimbavhi Reckson Mulidzi, Natacha Pizzolon, Denisse Zamorano Meriño, Carlos Poblete Echeverría, Claudio Pastenes Villareal, Talitha Venter, J. Perez Peña
Grapevines in Argentina, Chile and South Africa are grown under high levels of solar radiation. The availability of this resource is an opportunity to implement agrivoltaics as a practice for climate change mitigation. This study was conducted during 2020-2021 to: i) compare the legal framework in these countries to promote photovoltaic (PV) technology, ii) analyze the integration of PV technology with viticulture, and iii) evaluate its social acceptance. To analyze the regulatory framework, national and regional laws to promote the integration of PV technology with viticulture were evaluated. The PV technology and viticulture practices adopted were evaluated through a survey in ten vineyards located in Argentina, Chile, and South Africa. Social acceptance of PV integration with viticulture was evaluated in a participative process. The main facilitators common to the three countries are the availability of the solar resource, the scenario of legislative transformation related to the production of renewable energies, and the reduction of production costs in the long term for wine companies. Although there have been advances in the regulatory frameworks, especially in Chile and Argentina, agrivoltaics is still not mentioned. This, coupled with limited local experience of agrivoltaics in vineyards, limits communication of the potential benefits in grape, wine, and energy production.
{"title":"Towards a More Sustainable Viticulture","authors":"Lucía Romina Palazzo, Gabriela Lourdes Acosta, Pilar Gil Montenegro, Azwimbavhi Reckson Mulidzi, Natacha Pizzolon, Denisse Zamorano Meriño, Carlos Poblete Echeverría, Claudio Pastenes Villareal, Talitha Venter, J. Perez Peña","doi":"10.52825/agripv.v1i.612","DOIUrl":"https://doi.org/10.52825/agripv.v1i.612","url":null,"abstract":"Grapevines in Argentina, Chile and South Africa are grown under high levels of solar radiation. The availability of this resource is an opportunity to implement agrivoltaics as a practice for climate change mitigation. This study was conducted during 2020-2021 to: i) compare the legal framework in these countries to promote photovoltaic (PV) technology, ii) analyze the integration of PV technology with viticulture, and iii) evaluate its social acceptance. To analyze the regulatory framework, national and regional laws to promote the integration of PV technology with viticulture were evaluated. The PV technology and viticulture practices adopted were evaluated through a survey in ten vineyards located in Argentina, Chile, and South Africa. Social acceptance of PV integration with viticulture was evaluated in a participative process. The main facilitators common to the three countries are the availability of the solar resource, the scenario of legislative transformation related to the production of renewable energies, and the reduction of production costs in the long term for wine companies. Although there have been advances in the regulatory frameworks, especially in Chile and Argentina, agrivoltaics is still not mentioned. This, coupled with limited local experience of agrivoltaics in vineyards, limits communication of the potential benefits in grape, wine, and energy production.","PeriodicalId":517222,"journal":{"name":"AgriVoltaics Conference Proceedings","volume":"160 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139896141","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}
Lucía Romina Palazzo, Gabriela Lourdes Acosta, Pilar Gil Montenegro, Azwimbavhi Reckson Mulidzi, Natacha Pizzolon, Denisse Zamorano Meriño, Carlos Poblete Echeverría, Claudio Pastenes Villareal, Talitha Venter, J. Perez Peña
Grapevines in Argentina, Chile and South Africa are grown under high levels of solar radiation. The availability of this resource is an opportunity to implement agrivoltaics as a practice for climate change mitigation. This study was conducted during 2020-2021 to: i) compare the legal framework in these countries to promote photovoltaic (PV) technology, ii) analyze the integration of PV technology with viticulture, and iii) evaluate its social acceptance. To analyze the regulatory framework, national and regional laws to promote the integration of PV technology with viticulture were evaluated. The PV technology and viticulture practices adopted were evaluated through a survey in ten vineyards located in Argentina, Chile, and South Africa. Social acceptance of PV integration with viticulture was evaluated in a participative process. The main facilitators common to the three countries are the availability of the solar resource, the scenario of legislative transformation related to the production of renewable energies, and the reduction of production costs in the long term for wine companies. Although there have been advances in the regulatory frameworks, especially in Chile and Argentina, agrivoltaics is still not mentioned. This, coupled with limited local experience of agrivoltaics in vineyards, limits communication of the potential benefits in grape, wine, and energy production.
{"title":"Towards a More Sustainable Viticulture","authors":"Lucía Romina Palazzo, Gabriela Lourdes Acosta, Pilar Gil Montenegro, Azwimbavhi Reckson Mulidzi, Natacha Pizzolon, Denisse Zamorano Meriño, Carlos Poblete Echeverría, Claudio Pastenes Villareal, Talitha Venter, J. Perez Peña","doi":"10.52825/agripv.v1i.612","DOIUrl":"https://doi.org/10.52825/agripv.v1i.612","url":null,"abstract":"Grapevines in Argentina, Chile and South Africa are grown under high levels of solar radiation. The availability of this resource is an opportunity to implement agrivoltaics as a practice for climate change mitigation. This study was conducted during 2020-2021 to: i) compare the legal framework in these countries to promote photovoltaic (PV) technology, ii) analyze the integration of PV technology with viticulture, and iii) evaluate its social acceptance. To analyze the regulatory framework, national and regional laws to promote the integration of PV technology with viticulture were evaluated. The PV technology and viticulture practices adopted were evaluated through a survey in ten vineyards located in Argentina, Chile, and South Africa. Social acceptance of PV integration with viticulture was evaluated in a participative process. The main facilitators common to the three countries are the availability of the solar resource, the scenario of legislative transformation related to the production of renewable energies, and the reduction of production costs in the long term for wine companies. Although there have been advances in the regulatory frameworks, especially in Chile and Argentina, agrivoltaics is still not mentioned. This, coupled with limited local experience of agrivoltaics in vineyards, limits communication of the potential benefits in grape, wine, and energy production.","PeriodicalId":517222,"journal":{"name":"AgriVoltaics Conference Proceedings","volume":"36 S2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139893479","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}
Agrivoltaic systems combine soil-grown crops with photovoltaic (PV) panels erected several meters above the ground. Combining solar panels and food crops on the same land can maximize land utilization. Under the PV panels, however, microclimate factors like solar radiation, air temperature, humidity, and soil temperature change. An agrivoltaic system must optimize sunlight sharing between solar panels and crops to maximize food energy production. It has been challenging to improve and analyze the performance of agrivoltaic systems due to the lack of a defined crop-specific parameter. In this work, we present a practical option to partially replace bifacial modules with semi-transparent ones, providing comparable levels of crop protection and greater climate change resilience while generating green energy and increasing land-use efficiency. The agrivoltaic system must be tailored to satisfy the needs of crops. For this purpose, a simulation model was conducted, which examined the impact of module transparency and cell layout based on light availability.
{"title":"Shading Effect of Transparent Photovoltaic Panels on Crops Underneath Agrivoltaic Systems","authors":"Nasim Seyedpour Esmaeilzad, İpek Gürsel Dino, Dilara Güney, Yusuf Ersoy Yıldırım, Raşit Turan, Talat Özden","doi":"10.52825/agripv.v1i.702","DOIUrl":"https://doi.org/10.52825/agripv.v1i.702","url":null,"abstract":"Agrivoltaic systems combine soil-grown crops with photovoltaic (PV) panels erected several meters above the ground. Combining solar panels and food crops on the same land can maximize land utilization. Under the PV panels, however, microclimate factors like solar radiation, air temperature, humidity, and soil temperature change. An agrivoltaic system must optimize sunlight sharing between solar panels and crops to maximize food energy production. It has been challenging to improve and analyze the performance of agrivoltaic systems due to the lack of a defined crop-specific parameter. In this work, we present a practical option to partially replace bifacial modules with semi-transparent ones, providing comparable levels of crop protection and greater climate change resilience while generating green energy and increasing land-use efficiency. The agrivoltaic system must be tailored to satisfy the needs of crops. For this purpose, a simulation model was conducted, which examined the impact of module transparency and cell layout based on light availability.","PeriodicalId":517222,"journal":{"name":"AgriVoltaics Conference Proceedings","volume":"181 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139893541","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}
Agrivoltaic systems combine soil-grown crops with photovoltaic (PV) panels erected several meters above the ground. Combining solar panels and food crops on the same land can maximize land utilization. Under the PV panels, however, microclimate factors like solar radiation, air temperature, humidity, and soil temperature change. An agrivoltaic system must optimize sunlight sharing between solar panels and crops to maximize food energy production. It has been challenging to improve and analyze the performance of agrivoltaic systems due to the lack of a defined crop-specific parameter. In this work, we present a practical option to partially replace bifacial modules with semi-transparent ones, providing comparable levels of crop protection and greater climate change resilience while generating green energy and increasing land-use efficiency. The agrivoltaic system must be tailored to satisfy the needs of crops. For this purpose, a simulation model was conducted, which examined the impact of module transparency and cell layout based on light availability.
{"title":"Shading Effect of Transparent Photovoltaic Panels on Crops Underneath Agrivoltaic Systems","authors":"Nasim Seyedpour Esmaeilzad, İpek Gürsel Dino, Dilara Güney, Yusuf Ersoy Yıldırım, Raşit Turan, Talat Özden","doi":"10.52825/agripv.v1i.702","DOIUrl":"https://doi.org/10.52825/agripv.v1i.702","url":null,"abstract":"Agrivoltaic systems combine soil-grown crops with photovoltaic (PV) panels erected several meters above the ground. Combining solar panels and food crops on the same land can maximize land utilization. Under the PV panels, however, microclimate factors like solar radiation, air temperature, humidity, and soil temperature change. An agrivoltaic system must optimize sunlight sharing between solar panels and crops to maximize food energy production. It has been challenging to improve and analyze the performance of agrivoltaic systems due to the lack of a defined crop-specific parameter. In this work, we present a practical option to partially replace bifacial modules with semi-transparent ones, providing comparable levels of crop protection and greater climate change resilience while generating green energy and increasing land-use efficiency. The agrivoltaic system must be tailored to satisfy the needs of crops. For this purpose, a simulation model was conducted, which examined the impact of module transparency and cell layout based on light availability.","PeriodicalId":517222,"journal":{"name":"AgriVoltaics Conference Proceedings","volume":"54 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139896016","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}
Jérôme Chopard, Gerardo Lopez, S. Persello, Damien Fumey
With global warming and the increase of heatwaves frequencies, it has become urgent to protect crops. Agrivoltaic systems tackle this issue by shading plants with photovoltaic panels to lower the temperature of canopies. However, a permanent shading would lead to an important loss of carbon for plants. For this reason, dynamic agrivoltaic systems (AVD) emerged with panels which could be steered in real time according to the needs of plants. Shading at the right time is not that easy with the risk to either miss a hot event and cause serious and irreversible injuries to the plants or shade too often, and impact carbon production. In this paper we present first an experiment with measurements of leaf temperature at different positions of grapevine canopy for two summer days in 2020 and 2021. Then, the energy balance sub-model part of a crop model that simulate plant growth for fruit trees and vines grown in heterogeneous AVD environments is presented. Finally, after having evaluated the coherence of the model with experimental results, the relevance of a mechanistic model to steer solar panels and protect plants from heat is illustrated through several examples. The heterogeneity of temperature within the canopy observed in the field experiments related with different variables such as air and ground temperature, leaf orientation and self-shading was correctly reproduced by the model. This work indicated that canopy temperature could be more integrative than a unique threshold of air temperature to take decisions on panel orientation to protect plants from heat stress.
{"title":"Modelling Canopy Temperature of Crops With Heterogeneous Canopies Grown Under Solar Panels","authors":"Jérôme Chopard, Gerardo Lopez, S. Persello, Damien Fumey","doi":"10.52825/agripv.v1i.561","DOIUrl":"https://doi.org/10.52825/agripv.v1i.561","url":null,"abstract":"With global warming and the increase of heatwaves frequencies, it has become urgent to protect crops. Agrivoltaic systems tackle this issue by shading plants with photovoltaic panels to lower the temperature of canopies. However, a permanent shading would lead to an important loss of carbon for plants. For this reason, dynamic agrivoltaic systems (AVD) emerged with panels which could be steered in real time according to the needs of plants. Shading at the right time is not that easy with the risk to either miss a hot event and cause serious and irreversible injuries to the plants or shade too often, and impact carbon production. In this paper we present first an experiment with measurements of leaf temperature at different positions of grapevine canopy for two summer days in 2020 and 2021. Then, the energy balance sub-model part of a crop model that simulate plant growth for fruit trees and vines grown in heterogeneous AVD environments is presented. Finally, after having evaluated the coherence of the model with experimental results, the relevance of a mechanistic model to steer solar panels and protect plants from heat is illustrated through several examples. The heterogeneity of temperature within the canopy observed in the field experiments related with different variables such as air and ground temperature, leaf orientation and self-shading was correctly reproduced by the model. This work indicated that canopy temperature could be more integrative than a unique threshold of air temperature to take decisions on panel orientation to protect plants from heat stress.","PeriodicalId":517222,"journal":{"name":"AgriVoltaics Conference Proceedings","volume":"23 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139896232","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}
C. Jedmowski, Sourabh Kherde, Abhishek Pahwa, Vincent Schlechtrimen, Matthias Meier-Grüll, Onno Muller
The impact of shading on selected ornamental plant species was investigated by monitoring plant growth under a nontransparent roof in a nursery in Jülich and in an AgriPV-System in Rathenow. Plants were continuously measured using different RGB camera systems. Shading led to an increase in projected leaf area, increased petiole length and specific leaf area. Morphological changes in shade-sensitive Geranium cinereum plants led to a loss of plant marketability. Flowering time of Hydrangea sp. was not affected in a long term experiment in the AgriPV-System. Pigment composition was not altered significantly in Rhododendron plants. Experiments will be continued with a local nursery in a novel AgriPV-System established near Jülich.
{"title":"Effect of Shading in an Agri-PV System on Structure and Growth of Ornamental Plants","authors":"C. Jedmowski, Sourabh Kherde, Abhishek Pahwa, Vincent Schlechtrimen, Matthias Meier-Grüll, Onno Muller","doi":"10.52825/agripv.v1i.532","DOIUrl":"https://doi.org/10.52825/agripv.v1i.532","url":null,"abstract":"The impact of shading on selected ornamental plant species was investigated by monitoring plant growth under a nontransparent roof in a nursery in Jülich and in an AgriPV-System in Rathenow. Plants were continuously measured using different RGB camera systems. Shading led to an increase in projected leaf area, increased petiole length and specific leaf area. Morphological changes in shade-sensitive Geranium cinereum plants led to a loss of plant marketability. Flowering time of Hydrangea sp. was not affected in a long term experiment in the AgriPV-System. Pigment composition was not altered significantly in Rhododendron plants. Experiments will be continued with a local nursery in a novel AgriPV-System established near Jülich.","PeriodicalId":517222,"journal":{"name":"AgriVoltaics Conference Proceedings","volume":"27 34","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139896603","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}
Jérôme Chopard, Gerardo Lopez, S. Persello, Damien Fumey
With global warming and the increase of heatwaves frequencies, it has become urgent to protect crops. Agrivoltaic systems tackle this issue by shading plants with photovoltaic panels to lower the temperature of canopies. However, a permanent shading would lead to an important loss of carbon for plants. For this reason, dynamic agrivoltaic systems (AVD) emerged with panels which could be steered in real time according to the needs of plants. Shading at the right time is not that easy with the risk to either miss a hot event and cause serious and irreversible injuries to the plants or shade too often, and impact carbon production. In this paper we present first an experiment with measurements of leaf temperature at different positions of grapevine canopy for two summer days in 2020 and 2021. Then, the energy balance sub-model part of a crop model that simulate plant growth for fruit trees and vines grown in heterogeneous AVD environments is presented. Finally, after having evaluated the coherence of the model with experimental results, the relevance of a mechanistic model to steer solar panels and protect plants from heat is illustrated through several examples. The heterogeneity of temperature within the canopy observed in the field experiments related with different variables such as air and ground temperature, leaf orientation and self-shading was correctly reproduced by the model. This work indicated that canopy temperature could be more integrative than a unique threshold of air temperature to take decisions on panel orientation to protect plants from heat stress.
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