Electricity consumption at home, what is your consumption?

I am rather surprised that 200€/month or even more is considered normal. For that, the more expensive air heat pump or air-water heat pump or whatever, I find that expensive, especially surcharge technology charged with consumption!

That is just so different that you cannot generalize it. I can also say we have an air-water heat pump with photovoltaics and controlled residential ventilation and practically no electricity costs.

Children don’t inherit houses, with today’s life expectancy they themselves will already be 70, grandchildren inherit houses to move into

I totally agree. What my parents always kept telling me is how good I would have it when they are no longer around (3 nearly paid off properties) Meanwhile I am 39 and my parents are 63/58 years old. Since we plan to have everything paid off within the next 12 years, my children will probably blow everything :p

NHN? What is that?

"How real/dramatic is climate change in my eyes?".

I think it's good that it's being thought about. In some areas, we are already past 12 o'clock and not before it.

that we have a little son and we wish that he can inherit the house someday and it will still be above NHN.

But I don't believe he will inherit it. Considering offspring, everyone should keep an eye on climate change and the future of the Earth, but your retirement will consume quite a lot – whether the house is liquidated for care or the money needed for renovation is spent on care – the house will be wasted one way or another.

But 200€ every month – that is not pocket change for me. And when some people talk here about their servers, which also waste quite a bit of energy, that would make me feel a bit sick in the stomach from the running costs. This should also be told to those who shortly and abruptly want to build a single-family house with heavy EL [Einkommensersatzleistung] but come from a warm rent currently at 700€.

I totally agree. My parents always sang to me how well off I would be when they were no longer around (3 almost paid-off properties)

In our case, all properties except for their own and one apartment were liquidated by my parents. At some point, a self-employed person has to live off something or pay renovation costs for their own house. Just casually taking rent from here and there doesn't work. And now, at 77, they live in their house and we'll see what comes next...

Just briefly back to the actual topic. I still haven’t turned on the underfloor heating because, as I mentioned, we specifically got wood to fire the fireplace. There is hardly any loss of comfort at the moment, of course the floor is cold but the house remains warm. It is 22.8 degrees on the ground floor and 20.1 degrees in the bedrooms upstairs. I think the wood will be used up by the end of January. Then we still have 2 months during which we will be heating.
So far, since the beginning of May, we have drawn 230kWh from the supplier due to the photovoltaic system and storage. If another 1200kWh are added because of the heat pump for February and March, I would be satisfied.
Let’s see!

It is 22.8 degrees on the ground floor and 20.1 degrees in the bedrooms upstairs.

Great! How often do you fire up the stove?

There is currently hardly any loss of comfort, sure the floor is cold but the house is still warm.

Oh, that would be a loss of comfort for me. Cold floor. Do you get all the rooms warm?
I turned on the heating early precisely because of the floor. Because at some point the tiles did become uncomfortably cold.