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The suitable Mounting System for Solar Panels on Moorland Terrain

The wetting of drained bogs in combination with a temporarily installed solar system offers additional benefits for farmers. Dieter Geyer from the ZSW in Stuttgart defined the specifications for the technical developments at this year's PV symposium.

Solar system as temporary use

Overall, this is about seven percent of the agricultural area. But if the moors are wet again, they could store more than a third of the carbon dioxide emitted in agriculture, Geyer has calculated. The potential is huge, but the idea is only partially attractive to farmers.

This could improve if so-called paludicutures are cultivated on the moor areas that are to be rewetted and solar systems are temporarily set up. This would bring a double benefit for the farmer and an additional benefit for the climate.

System muss erst stehen, dann schwimmen

In addition, the system, which is initially set up on solid ground, must also be able to float once rewetting has started. Although the formation of waves is lower than with conventional floating PV systems that float on open water, waves must still be prevented. Because there is also movement in the moor water, which the system has to compensate for.

System must be dismantled

In addition, there are anti-corrosion measures that are necessary not only for the mounting system but also for the entire cabling. This must also be laid completely above the water. A third criterion is that the system must be completely removable. "This dismantling, including the cabling, must be possible without massive intervention in the newly created moor flora," explains Dieter Geyer. He is currently looking for innovative project developers and manufacturers of substructures who will take on this challenge.


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