Researchers in France have successfully combined solar energy and crop production by stringing photovoltaic panels above the height of machinery.
The trial conducted by French power company TSE Energy looked at vine production and soya bean crops on a farm in the north-east of France.
Its aim was to assess whether solar energy could be generated without hindering cereal crops, according to a report by Agence-France Presse (AFP).
Using a wire grid, strung between pylons, 5,000 panels producing 2.5mW of power were sited at a height that even allowed combines to travel beneath them.
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The wire mounting grid was connected to a series of motors that adjusted panels to track the sun. Panels can also be raised to a vertical position, allowing rain or sunlight to penetrate and ensure the crop grows.
Researchers pointed out that an additional benefit found in the trial was to provide cover from extreme weather at key points of the year.
Panels can be positioned horizontally, providing a cover against hail, heavy rain or direct sunlight to preserve soil moisture, said Xavier Guillot, head of agronomy research at TSE.
Speaking to the European Commission’s Euronews channel, Mr Guillot said there was also a degree of temperature control, with the panels acting as a roof to trap warmth in colder conditions.
He added that the trial had suggested it was possible to address the question of meeting France’s renewable energy needs, without sacrificing prime agricultural land.
The panels are due to be connected to France’s power grid in December and will provide enough energy for 1,500 homes.
