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]
- How agrivoltaics is marrying food production with green energy in Alberta CBC
- Solar burgers: How agrivoltaics is marrying food production with green energy Western Investor
- Comment l’agrivoltaïque associe production alimentaire et énergie verte Les Affaires
- Solar burgers: How agrivoltaics is marrying food production with green energy MSN
- Comment l'agrivoltaïque associe production alimentaire et énergie verte Le ChoseLaval
- CastaNet
- The Winnipeg Free Press
- Head Topics
- Morning Ag Clips
- Les Affaires
- LaTerre
- RD News
- Lethbridge News
- Famrs.com
- Enbeuce
- Agrivoltaics: solar energy + better crops Climate and Nature
- Why solar power and farmers’ fields could be the perfect combination TVO
- Solar farms and sheep show the makings of a clean energy classic duo Business Renewables
- Agrivoltaics charge up St. Albert-area farms St Albert Gazette
- Sheep, solar and crops. How some Alberta farms are creating ideal growing conditions Western Wheel
- Sheep, solar and crops. How some Alberta farms create ideal growing conditions Voxpopuli
- 3D printed clamps for front-surface PV mounting on wood racking PV Magazine
- Harvesting the Sun to Grow in the Shade Garden Culture Magazine
- What crops fit with vertical agrivoltaics? PV Magazine
- Agrivoltaics – Keeping the farm in the solar farm Green Energy Futures
- Booming solar industry has a growing appetite for weed-chomping crews CBC
- La floreciente industria solar tiene un creciente apetito por equipos de devoradores de maleza Espanol news
- Des cochons à l’ombre des panneaux solaires, l’agrivoltaïsme gagne en popularité Radio Canada
- Pigs in the shade of solar panels, agrivoltaics gains popularity Euro Day France
- Des porcs à l’ombre des panneaux solaires, l’agrivoltaïque gagne en popularité News Day France
- ICI Radio
- The Weather Network
- Agrowoltaika zyskuje na wartości. Panele słoneczne na polu nie przekreślają upraw Business Insider Poland
- Kanada/ Coraz popularniejsza agrowoltaika: rolnictwo i produkcja energii w jednym Deon Pl
- Tu zboże, tam fotowoltaika. Rolnicy produkują i żywność i energię na jednym polu Bankier PL
- Kanada: coraz popularniejsza agrowoltaika: rolnictwo i produkcja energii w jednym MSN PL
- Agrowoltaika podbija świat (Agrovoltaics is conquering the world ) Warzywnichtow Polish
- Coraz popularniejsza agrowoltaika - rolnictwo i produkcja energii w jednym Agro Polska
- Agriculture and Energy Future - Agrivoltaics Agritecture
- MBA students examine a solar farm’s benefits for critical issues case competition Ivey
- Ontario solar curbs rankle expert BNN Bloomberg
- Kanada: coraz popularniejsza agrowoltaika: rolnictwo i produkcja energii w jednym MSN Poland
- Agrivoltaics: Harvesting the sun to benefit farmers, crops, and livestock Shareable
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