The study that shows when agri-PV delivers a real agronomic advantage
A global research review analysing 82 field trials in 20 countries, alongside global deployment data reaching 20 gigawatts (GW), confirms that agrivoltaic (Agri-PV) systems raise total land productivity by 35% to 73% (land equivalent ratio, LER, of 1.35–1.73).
The study, published in the journal PNAS, presents clear quantitative measures: 20% to 40% savings in irrigation water, up to 300% improvement in water use efficiency (WUE), and a 2%–3% increase in solar panel efficiency thanks to natural evaporative cooling (evapotranspiration).
However, the findings reveal a sharp climatic dependence: while in arid and semi-arid regions shading prevented water stress and raised soybean yields by 6%, in rainy regions maize yields fell by 24% due to a radiation deficit (PAR).
For Israel's agricultural landscape, with its heavy radiation and heat loads, the findings confirm the agronomic and engineering viability of dual use in field crops and orchards.
