I’m all for putting solar panels all over the place, but won’t these get dusty and oily and need loads of cleaning after trains pass over?
Also, costing €623,000 over three years sounds rather expensive for just 100m (although that roughly equates to 11KW).
They make a better roof over the tracks that the train passes under than being on the ground. They could even be tilted to better face the sun.
This but for cycling pathways in cities (no cars allowed).