Supply line for kitchen island with induction and 3 sockets

jo I got your wink..

how do I solve this problem

Operate kitchen appliances with batteries..... just kidding. I can't think of a better and cleaner solution than the one already mentioned by . Ideally, this should be planned in advance.

Edit:
The only other thing I can think of is to run the power (if available) over the basement ceiling.

Yes, but electricity has to go there too....how do I solve this problem?

If you answer the questions mentioned above (complete ceiling structure, what is under the kitchen, what is above the kitchen), then there might be some ideas. Otherwise, you can still botch it, but I suppose you don't want that.

What are the boundary conditions anyway? Are you doing self-construction? Are there specialist companies working for you? A site manager? What is the schedule, when is the screed coming?

I am buying a turnkey new build from a private seller. So far, the shell up to the underfloor heating is complete. The walls are already plastered as well. Since I just now came across the property, unfortunately I can only have a say from this point onward. I still have input regarding the flooring, doors, stairs, and so on. Upstairs there is a reinforced concrete ceiling with the same structure as on the ground floor, so it also has underfloor heating. I wanted to run the cable into the ceiling—so chisel it out and then plaster it again. The screed will be installed once I have finished my preliminary work regarding cables and such. I wanted to lay the still missing cables myself. There is no basement.

Yes, but there also needs to be electricity....how do I solve that problem?

In our case, the power connection for the kitchen island was forgotten!
The electrician saw no problem in cutting open the screed, laying the cable, and sealing the groove again with epoxy adhesive.
I don't know if this is standard practice or a serious foul - in any case, having power in the island makes us happy.

The screed will be installed once I’m done with my preparatory work regarding cables and such.

Then opening the insulation as described is indeed the easiest and fastest option. You can probably push the underfloor heating pipes a bit. Afterwards, close everything properly again, especially make sure the foil is covered and taped securely.

The electrician saw no problem in grinding open the screed, laying the cable, and sealing the groove again with epoxy adhesive.

Is the line in the heated screed or underneath in the insulation?