Experiences with brine heat pump

Yes, now pay attention: geothermal energy also works with a trench collector installed by yourself for a maximum of about 2000€. And this is also subsidized by the BAfA. So it's basically free money.

By the way: 15000€ for the drilling is really super expensive

Yes, there are also companies that charge drilling from 10,000 euros, that's true. Nothing goes below that. The 15,000 was the market leader with extensive guarantees.

Trench collector is cheaper, that's true. You just need some space and few companies offer it.

For a trench collector, you also need the appropriate property. Many trees and shrubs do not grow above it, and the soil often moves significantly. It basically only works with a large lawn area. And I estimate that with renting an excavator and everything, 2000 is tight (you need materials and proper connections!), unless you happen to have contacts, but that is not the general case.

That is not generally true at first, but it doesn't matter. It was simply about representing "the other extreme."

Quick question about this: This is a regional funding program. How do you know about it? Is there a website where such funding programs are listed? I want to build in Mecklenburg and haven't found anything like that so far.

Regards
Denz

Yes, there are also companies that charge from 10,000 euros for drilling, that's true. Nothing works below that. For the 15,000 it was the market leader with extensive guarantees.

Trench collector is cheaper, that's true. You just need some space and few companies offer it.