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).
That could actualy have real world benefits, like when there are few trains, a special small train could go by and let maintenance people off/on there for example.