Detached house ~ 150 sqm for 5 people

Yes, it passed me by. Sorry!

Have you by now noticed my remark (in #65/66) that, due to your settings, you cannot even be invited to a conversation?

Hello everyone,

Sorry for the long silence. I was pretty knocked out health-wise, but it's slowly getting better now. We have since sent our wishes to the architect and are waiting for feedback. I will get in touch as soon as I know something new.

Hast Du denn mittlerweile meinen Hinweis (in #65/66) wahrgenommen, daß man Dich aufgrund Deiner Einstellungen noch nicht einmal zu einer Unterhaltung einladen kann ?

I will take a look at the settings right away.

thanks for the idea to rotate the house, but will the solar thermal still work then?

thanks for the idea of turning the house, but will the solar thermal system still work then?

Good point! Prof. Quatschning says that every roof must have solar installations. We've already laid the pipes. Something has to happen now. I was hoping the government would subsidize it sometime. But I fear you can't expect anything from the government anymore. So do it yourself.

Optimal south orientation should therefore remain. Forget the last draft.

but does solar thermal still work then?

I thought solar thermal isn't really worth it and people switch to photovoltaics? Our energy consultant also said that an east-west roof is much better suited than a south-facing roof, because you generate electricity more at times when you can use it yourself.

But in winter, the yield could already become quite thin there, right? The storages are supposed to get better too. Well, good advice is expensive there.

We have already laid the pipes. Something has to happen now. I had hoped that the state would subsidize it at some point. But I’m afraid you can no longer expect anything from the government. So do it yourself.

Does the government print its own money? Or does it not take it from everyone – including those who can only afford a rental apartment? By what right should these tenants subsidize your solar energy?

But in winter, the yield could get pretty thin, right? The storage systems are supposed to get better too. Well, good advice is expensive there.

Salt storage systems are very expensive and have hardly any long-term experience.

And to heat 1000 liters of water from 30 to 80° C, you need 60 kWh. But to get a KfW-40 unit of 150 m2 through the winter half-year (when almost nothing is to be expected in terms of yield), you would need 3,000 kWh or a 50,000-liter tank! You could still compensate for the storage losses alone with a normally dimensioned solar system in winter.

Or you oversize your solar system massively, then a three-week supply (dark January) would probably suffice, so still around 1000 kWh or 15,000 liters.