I would like to nudge my question again. What does the installation of 1 or 2 empty conduits for photovoltaics cost approximately? 20€, 50€, 100€, or more?
Well, I guess it depends on the length of the pipe and the necessary work involved. If you already have a shaft, you just have to lay it in, but if it needs chiseling, etc., it takes longer and costs more.
Simple version I’d say 50€, expensive version 200-300€
Is it even possible to pull cables in these dimensions afterwards? From the roof to the basement is quite a distance and I can’t imagine how you would manage even a single bend with that.
Exactly! That’s why I want to install it already during the shell construction phase. Later they come up with some visually unsatisfactory solutions that the builders accept because otherwise the costs explode. Photovoltaic cables should simply be laid during the shell construction. I still need to talk to some more real providers.
I also have a question regarding photovoltaics. Do you think there is any chance to hang the inverter in a garden shed nearby instead of in the technical room? Or will fire protection foilage thwart me there?