The potential for fencing to be used as low-cost solar photovoltaic racking
Popular agrivoltaic systems use photovoltaic (PV) farms for pasture grazing animals. In general, these agrivoltaic systems do not reduce the capital cost of a PV farm and in some cases can increase it. To overcome this challenge this study investigates the potential for retrofitting existing animal fencing on farms to have dual use for vertical-mounted monofacial PV racking. Specifically, this study catalogs types of fences and wind load calculations classified under Risk Category I are run through a new python-based Open Source Wind Load Calculator to determine the viability of fence-based racking throughout the U.S. The base shear force for all the fences are calculated for a range of wind loads from 80mph to 150mph (129 km/h to 241 km/h) and the results are mapped to indicate the number of PV modules between the vertical fence poles a fence can tolerate in a specific location. The results show the required fence type including post and battens in a given area for sheep, goats, pigs, cows, and alpaca to be used for agrivoltaics. Overall, at least one PV module between posts is acceptable indicating a new agrivoltaic system potential that as little as $0.035/kWh for racking on existing fencing. Although the yield for a vertical PV can range from 20 to 76 % of an optimized tilt angle depending on azimuth, the racking cost savings enable fence-retrofit agrivoltaics to often produce lower levelized cost electricity. Future work is necessary to determine the full scope of benefits of vertical PV agricultural fencing on a global scale.
Keywords
[edit | edit source]Racking, Frugal engineering, Wind loading, Local materials,Agrivoltaics, fencing; vertical;Sustainable development; Open-source; Photovoltaic; solar energy; balance of systems; renewable energy; do-it-yourself
Open source software
[edit | edit source]Highlights
[edit | edit source]- Retrofitting animal fencing for dual use for vertical-mounted monofacial PV racking.
- Python-based Open Source Wind Load Calculator used for viability throughout the U.S.
- Base shear force mapped for all fences for wind loads from 80 mph to 150.
- Agrivoltaic system potential that as little as $0.035/kWh for racking on existing fencing.
- Racking cost savings make fence-retrofit agrivoltaics a promising new technology.
See also
[edit | edit source]- Optimal inverter and wire selection for solar photovoltaic fencing applications
- To Catch the Sun
- 3-D printable photovoltaic module spacer
- Open source DIY solar photovoltaic racking
- Circular PV panel
The Western Innovation for Renewable Energy (WIRED) system is currently under construction to test out new open source methods to reduce PV systems costs and enable novel forms of agrivoltaics including the world's first agrivoltaic agrotunnel.
- Coal with Carbon Capture and Sequestration is not as Land Use Efficient as Solar Photovoltaic Technology for Climate Neutral Electricity Production
- Dual use of land for PV farms and agriculture literature review
- sheep
- Israeli white plastic reflectors
- A Farmer's Guide to Going Solar (NREL)
- German guidelines: https://www.ise.fraunhofer.de/content/dam/ise/en/documents/publications/studies/APV-Guideline.pdf
- 2021 review
- Miskin, C.K., Li, Y., Perna, A., Ellis, R.G., Grubbs, E.K., Bermel, P. and Agrawal, R., 2019. Sustainable co-production of food and solar power to relax land-use constraints. Nature Sustainability, 2(10), pp.972-980.
- Retrofitting solar parks for agrivoltaics
- Shading PV
- Alexis' talk at American Solar Grazing Association2021
In the News
[edit source]From: Financial Analysis of Agrivoltaic Sheep: Breeding and Auction Lamb Business Models
- Raising sheep for grazing under solar panels makes everyone clean, green money - Western News
- Sheep Grazing Under Solar Panels Yields Green Profits Mirage News
- Agrivoltaics paired with sheep production makes nearly 100% of land grazable TechXplore
- Agrivoltaics paired with sheep production makes nearly 100% of land grazable MSN
- Grazing ’solar’ sheep offer lucrative solution for farmers My Science
- Global Renwable News
- Rinnovabili
- Education News Canada
- How agrivoltaics and “solar” sheep are redefining profitable farming in Canada PV Buzz
- Nature’s best lawnmower: How solar grazing is changing the photovoltaic landscape Euronews
- Yahoo NewZealand
- Bundle
- Photos: Sheep grazing boosts solar farms and soil health in the US and Europe Interesting Engineering
- O melhor cortador de relva da natureza: como o pastoreio solar está a mudar a paisagem fotovoltaica EuroNews
- La meilleure tondeuse à gazon de la nature : comment le pâturage solaire change le paysage photovoltaïque - Observatoiredeleurope
- Solar sheep grazing under agrivoltaic arrays can maximise land use News9
- El mejor cortacésped natural: ¿Cómo el pastoreo solar está cambiando el panorama fotovoltaico? Yahoo Spain
- ‘Solar shepherds’ earn big by grazing sheep on solar farms — and they benefit everyone involved Modern Science
- Sheep farmers are crazy about solar power plants: “Salaries are higher than lawyers” Central asia Climate Portal
- Researchers make unexpected discovery about sheep raised in nontraditional environment: 'There is an enormous opportunity' The Cool Down
- ‘Solar shepherds’ earn big by grazing sheep on solar farms — and they benefit everyone involved The Conversation
- Får och solparker - en vinst för både lantbruk, får och klimat Energinyheter (se)
- Researchers make unexpected discovery about sheep raised in nontraditional environment: 'There is an enormous opportunity' Yahoo
- Une étude révèle un duo gagnant : moutons et panneaux solaires, “un potentiel immense” Le Energeek
- ‘Farming Sunshine’ Brings Food, Power Producers Together for Local Baaa-nefit The Energy Mix
- Bùng nổ ngành nông nghiệp quang điện Saigon Online
- Solar sheep make better wool? The Carbon Almanac
- How to use sheep to manage vegetation at solar farms, boost agriculture Farm Progress
- Tarımsal Voltaik Sistemler ve Koyunlar Tarim Gundem (Turkish)
- Les « moutons solaires », un mariage lucratif entre agriculture et énergie propre Radio Canada
Agrivoltaics in Canada
[edit source]- Solar Sheep, Alberta (https://www.solarsheep.ca/)
- Sun Cycle Farms, Alberta (https://suncyclefarms.com/)
- Golden Leaf Agrivoltaics, Ontario (https://goldenleafagrivoltaics.ca/)
- The Lara Cost Farm, Ontario (https://thelaracosta.com/)
- Arnprior Solar, Ontario (https://www.edf-re.com/project/arnprior-solar/)
- Lewis Land & Stock, Ontario (https://solargrazing.org/asga-call-29-don-lewis-from-lewis-land-stock-of-ontario-canada/)
- Nanticoke Solar, Ontario (https://www.opg.com/stories/hundreds-of-grazing-sheep-helping-to-keep-opgs-nanticoke-solar-facility-in-trim-shape/)
- Western University’s Western Innovation for Renewable Energy Deployment (WIRED) (https://www.appropedia.org/Western_Innovation_for_Renewable_Energy_Deployment_(WIRED))
- Orchard, Middlesex, Ontario
- Solar Grazing Map https://solargrazing.org/map/
| Authors | Koami Soulemane Hayibo, Joshua M. Pearce |
|---|---|
| License | CC-BY-SA-4.0 |
| Organizations | FAST, Western University |
| Cite as | Koami Soulemane Hayibo, Joshua M. Pearce (2023–2026). "The potential for fencing to be used as low-cost solar photovoltaic racking". Appropedia. Retrieved June 7, 2026. |
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