Tag Archive for: AgriSolar

This paper shares an overview of both active and passive cooling approaches in solar PV applications with an emphasis on newly developed agrivoltaic natural cooling systems.

In this paper, researchers perform data analysis to detail the per-activity and total O&M costs for vegetation management at PV sites with different ground covers and management practices.

This paper addresses the need for a review that provides a clear explanation of agrivoltaics, including the factors that impact agricultural and energy production in agrivoltaic systems, types of panel configurations and technologies to optimize these systems, and a synthesis of modelling studies which have already been conducted in this area.

US Agriculture Industry Demonstrates Ability to Embrace New Technologies and Practices

“The rising tide of opposition to large-scale solar farms has been impacting the US solar industry, but over the long run, PV stakeholders have the butterflies on their side. Solar developers are eager to pitch their projects as pollinator habitats that replace cultivated crops and neglected land with native plants, benefiting the property owner and nearby farms. The pollinator angle helps to undercut complaints that solar arrays are an inappropriate use of farmland, and it supports the case for farmers to adopt new technologies that benefit their industry.

Minnesota has become the epicenter of the solar-plus-pollinator trend, with local electric cooperative Connexus Energy leading the way. That’s no accident. A 2016 state law set up Minnesota’s Habitat Friendly Solar program, which incentivizes property owners and solar developers to claim benefits for gamebirds as well as songbirds and pollinating insects.” – Cleantechnica

Agrisolar Can Lower Food Costs, Reduce Emissions, and Improve Farming

“The agricultural industries in Europe, Asia and the United States have been aggressively expanding their agrivoltaic farms with wide public support. In Europe, solar panels are put over different types of crops, including fruit trees. Meanwhile, in China, agrivoltaics is used to reverse desertification which is literally using solar panels to green former deserts.

The life cycle analysis of agrivoltaics, which assesses its impact from its conception to use, found that these solar-covered farms emit 69.3 per cent less greenhouse gases and demand 82.9 per cent less fossil energy compared to separate food farms and solar farms-based production.” – Morning Ag Clips

Dominion Energy Lambscaping on Solar Sites  

“As part of Dominion’s solar grazing program, sheep clean up more than 40 acres a day across five of their solar farms. ‘We are trying to get creative and innovative in ways in vegetation management,’ said Dominion Energy spokesperson Tim Eberly. It’s more environmentally friendly, too, because it saves emissions generated by lawn mowing equipment.  

The digested grass and manure also help improve water filtration from rain, which provides a cooling aspect for more than 80,000 solar panels, which, in turn, also makes them more efficient.” – WTKR 

Kentucky Farm Uses Sheep to Graze Solar Site 

“Since 2020, Shetland and Katadin sheep have been roaming and eating grass on the 50-acre solar facility in Harrodsburg, southeast of Lexington. What started out as 25 sheep in the flock has grown to 200 sheep. 

‘By using sheep rather than lawnmowers, what we‘re doing here is both more environmentally friendly and helps manage expenses by keeping maintenance costs down. We also hope our unique approach can be a model for other utilities and their solar initiatives.’ Aron Patrick, director of Research and Development at LG&E and KU parent company PPL Corporation, said in a news release Wednesday.” – WDRB 

Hexagon Energy Plans to Develop Pollinator Habitat on Solar Site  

“Charlottesville-based Hexagon Energy hopes to install solar panels on 650 acres near Scottsville. After 80 years of tree farming, the land there is exhausted, so Hexagon’s Scott Remer says the company will cultivate native grasses and flowers to restore the soil. 

‘It’s about 500 acres of meadow habitat that’s actually going to be established from a cutover moonscape right now to about 500 acres of meadow habitat, and that’s not even counting clover and plants and flowers and grasses that are under the panels,’” – WVTF 

Thistlerock Meadery is set to keep 100 hives on the solar site once development is completed. 

Research Shows Solar Shade Helps Restore Biocrusts

“Arizona State University (ASU) professor Ferran Garcia-Pichel and his research team have proposed to use solar arrays as a solution to the problem of excess heat and light, creating a shaded nursery to promote biocrust growth.

The researchers performed a proof-of-concept experiment in the Sonoran Desert, studying biocrust growth for three years. During the study, the PV array promoted biocrust formation, doubling biocrust total biomass and tripling its coverage area when compared to open areas with similar soil characteristics. Natural recovery of harvested biocrusts can take six to eight years to recuperate without intervention, but re-inoculated areas under the solar panels were able to nearly fully recover within one year.” – PV Magazine

More information on this research can be found here.

This research looks at the decision factors informing private landowners’ decisions to host solar sites on their land through a case study in California. Applying land system science and agricultural decision-making theory, we find that landowner decisions to host utility scale solar sites are based on profit-maximization, water availability, visual and ecological landscape values, and agricultural land preservation ethic.

This paper addresses the environmental effects of solar panels on an unirrigated pasture that often experiences water stress. Changes to the microclimatology, soil moisture, water usage, and biomass productivity due to the presence of solar panels were quantified.

In this webinar, Heidi Kolbeck-Urlacher from the the Center for Rural Affairs, Alexis Pascaris from Agrisolar Consulting, and Allison Jackson from the Colorado Agrivoltaic Learning Center discuss policy approaches for dual-use and agrisolar practices.

This study was conducted to compare lamb growth and pasture production from solar pastures in agrivoltaic systems and traditional open pastures over two years in Oregon. This study showed that successful agrivoltaic systems are possible where lamb and energy production can be produced simultaneously from the same land. Comparable spring lamb growth and liveweight production per hectare from open and solar pastures demonstrate that agrivoltaic systems would not decrease the production value and potential of the land. In investigating the land use equivalence ratio, agrivoltaics enables increasing the land productivity up to 1.81 for pasture production and 2.04 for spring lamb production through combining sheep grazing and solar energy production on the same land as compared to single use systems. In addition to the increased land productivity and improved animal welfare, the results from this study support the benefits of agrivoltaics as a sustainable agricultural system. Overall, lower pasture yields under in fully shaded areas under the solar panels were the main cause of inferior pasture production in agrivoltaic sites. When designing pasture mixtures for agrivoltaic systems, a selection of pasture species that are not only tolerant to shade but also persistent under heavy traffic should be considered. Limiting the daily grazing time (e.g., on-off grazing: 3 h-grazing/d only) or rotational grazing pastures at low grazing intensities may be viable options for sustainable grazing of seasonally wet soils under solar panels.

This article presents a comparison of changes in vine growth and fruit characteristics due to the installation of solar panels in the vineyard. Researchers found that the development of vines and fruits was not significantly different, and that the post-harvest fruit showed no difference in granules, fruit discharge, sugar content, or pericarp color.

This guide aims to help farmland owners understand solar energy development and the solar energy leasing process. While the guide includes specific information for Ohio, much of the information in the guide is relevant for farmland owners in any state. Authors present initial considerations for farmers, as well as an explanation of common legal documents and terms in solar leasing. The final chapter of the guide organizes solar leasing issues into a checklist tool that reviews questions to ask and actions to take when thinking about solar energy development on the farm.