Construction costs are currently skyrocketing

We had an outdoor Schuko socket installed, fed with 5x2.5 mm2. In the box, it is three-phase protected with its own RCD. Initially, only one phase of the Schuko was used, it all cost around 150 euros. In the meantime, we were able to perfectly connect a wall box with 11 kW to it (22 kW would require a thicker cross-section).

For photovoltaics: The electrician was commissioned to install an empty conduit, M32, which he laid with some overhang from the HAR to under the roof covering. We also hired the roofer to install the empty conduit through the roof covering in a second step and seal it at the top with a sealed coupling. Total also around 150 euros.

If you later need more than one string (one per roof side or roughly every 50 m2), take a thicker empty conduit or even two. And make sure the electrician does not make the bending radius too tight.

I have meanwhile received information on what will be done specifically and have taken your points into account:

Me: Questions about photovoltaic provision and wall box provision:
What specific services are covered by the additional costs?
For the preparation of the photovoltaic system, 2x empty conduits M32 should be laid over the roof covering and sealed, ideally with photovoltaic cable already pulled through. Do you cover this?

Answer (short and sweet :)): Yes

Me: Similarly for the wall box. Outdoor Schuko socket with empty conduit and pulled-in cable. Secured in the distribution box with its own RCD. Is all this covered by the additional costs or "even more"? Could you please specify a bit more concretely?

Answer: Cable routing and connection in the distribution box. Junction box for later expansion of a wall box.

So ok or should I pay attention to something else? 1,500 euros net costs for both preparations together. Sounds pretty expensive compared to Scout* 300 euros :(

I have now received the information about what exactly will be done and have included your points:

Me: Questions about the provision of photovoltaic and provision of wallbox:
What specific services are covered by the additional costs?
For the preparation of the photovoltaic system, 2x empty conduits M32 should be laid up to above the roof covering and sealed, preferably with photovoltaic cables already pulled through. Does that cover it?

Answer (short and sweet :)): Yes

Me: For the wallbox similarly. Outside Schuko socket with empty conduit and pulled cable. Secured in the power box with its own RCD. Is all that covered by the additional costs or "even more"? Can you please specify that a bit more?

Answer: Cable routing and connection in the distributor. Junction box for future expansion of a wallbox.

So okay or should I pay attention to anything else? Both preparations together cost 1,500 euros net. Sounds pretty expensive compared to Scout* 300 euros :(

What do you mean expensive, just use a wall chase cutter and anchor bolts and do the work yourself?!

What do you mean expensive, just take a wall groove cutter and a bonding agent and do the work yourself?!

As you can possibly tell from the name, he is a buyer, not a builder. So no DIY work.

Invoice from the quarry has arrived. Gravel 0/32 unwashed including delivery in a three-axle truck €15.40/t net The quarry is about 15km away. I'm not quite sure yet why exactly this quarry was chosen for delivery. Another one is only 10km away and also easy to drive to by truck

I miss fracked and exported to DE US LNG in the chart. I mean that seriously – where do we stand in that case

When it comes to fracking, CO2 or fine dust is the smallest problem. The relentless poisoning caused by the sludge cannot realistically be calculated. This is a real offense against our environment. Quote from Quarks: "More than 1100 chemicals can be used in shale gas fracking. Some of the substances used are classified as carcinogenic, some can alter genetic material or impair fertility – for example, if groundwater or drinking water were contaminated with these chemicals."

Almost fell off the chair today, paid "leicht" 44€ gross for ready-made filler at the building supplier and was sent on a roundabout way to the trade dealer Raaaaa & K (because they did not have it in stock themselves) and see the price 29€ (gross) I couldn't quite get over the fact that as a private person you have to pay so much more.