Solar panels above orchards lower temperature, help conserve water

The installation of solar panels above the orchard is beneficial as it helps conserve water and lowers the temperature.

Photo: Sun'Agri / Twitter


September 5, 2023






September 5, 2023





The results of research carried out in the south of France showed that solar panels installed above apple, cherry, and nectarine plantations reduce heat and contribute to maintaining soil moisture in periods of high temperatures.

Agrisolar is becoming an increasingly popular solution. It is a combination of agriculture and electricity generation from photovoltaic panels. Such devices are usually mounted at a height of almost two and a half meters in rows so that the land below can be used to grow vegetables and fruit or for cattle grazing.

In the departments of Bouches-du-Rhône and Drôme in the south of France, the company Sun’Agri studied the performance of agrisolar systems in combination with fruit farming. For three years, the company monitored a series of parameters in orchards with apple, cherry, and nectarine trees under solar power panels. They were compared against equivalent orchards that were not covered.

Orchards covered with solar panels require less irrigation

The analysis reveals that the temperature on the test estate in Bouches-du-Rhône was 3.8 degrees Celsius lower than in ordinary orchards. In addition, soil moisture was 14% higher. The company also found that the agrivoltaic system contributed to water conservation. The need for irrigation from 2019 to 2021 was up to 30% lower than on the reference plots or 22% on average.

With its dynamic panels, Sun’Agri adjusts the orientation of the photovoltaic panels to the physiological needs of the fruit trees, in accordance with the weather conditions.

Solar panels provide a favorable microclimate for plant growth

Micrometeorological sensors were located at different heights under the panels. They measured temperature, air humidity, and sunshine.

With the help of special devices for measuring active radiation for photosynthesis, the researchers tracked the growth of plants and their needs. Sensors were placed on the trees themselves to monitor water levels, functioning, stress, and the temperature of their organs. Ground sensors measured the amount of water in the soil.

The study also showed that soil water availability decreased less under solar panels. The effect was attributed to the microclimate regulation in the shade of the panels, which improved the conditions for the plants and reduced transpiration and watering needs.

In 2021, the company said its panels reduced the risk of frost for vines below. When the temperature is dropping to a level threatening the crop, photovoltaic shift to a horizontal position, parallel to the ground, so that they cover almost 40% of the total area. It helps retain the heat stored in the soil until dawn. The extra couple of degrees are particularly beneficial in the prevention of frost, protecting the most sensitive parts of trees and vines, such as buds and flowers.

Comments (0)

Be the first one to comment on this article.

Enter Your Comment
Please wait... Please fill in the required fields. There seems to be an error, please refresh the page and try again. Your comment has been sent.

Related Articles

Eurelectric: Greece, Romania and Slovenia called to invest billions for power grids

Europe requires EUR 67 billion per year for power distribution upgrades

23 May 2024 - Strengthening apower distribution grids across Europe between 2025 and 2050 will require EUR 67 billion per year, Eurelectric calculated

EU key energy market reforms coming into force

EU’s key energy market reforms coming into force

22 May 2024 - The EU enacted electricity and gas market reforms and a framework to boost the development of hydrogen and other decarbonized gases


Serbia’s energy-intensive industries brace for CBAM, seek state support to apply decarbonization solutions

22 May 2024 - Companies in Serbia are not afraid of decarbonization and CBAM, but are worried the state does not recognize what needs to be done to help the affected industries

SolarEdge 3D house with Israel products_evening (2)

SolarEdge Home – the premium solar system even more affordable

22 May 2024 - SolarEdge is known for offering the most premium equipment on the market, but if you are wondering if SolarEdge DC optimization is useful on residential property, the answer is “yes, definitely"