Terraced end house from 1915, photovoltaic system?

And now back to the house this is actually about, sorry!

Then you can read up on the topic first. If there are still questions, create your own post. https://www.hausbau-forum.de/forums/photovoltaik.453/

Balcony system may currently have a maximum of 600 heat pumps. In my opinion, the change to 800 heat pumps is not yet approved.

"Balcony power plant" in quotation marks. There are such systems larger than 600 watts – but they must then be registered as a regular photovoltaic system, although they require hardly any installation effort. I will also install such a system as a supplement to my own photovoltaic system on my extension. No solar technician can do it that cheaply. And you enlist an electrician for the connection at the fuse box.

Balcony system may currently have a maximum of 600 heat pump. Change to 800 heat pump is in my opinion not yet approved.

Of course, I can buy the material much cheaper. Installation on the roof and the licensed electrician are not for DIY. Over 400 volts come to my strings.

Who changed that? I wrote 600 heat pump. That doesn't make any sense.

Hello,

read a lot and tried to put the puzzle pieces together.

The first offers really show drastic price differences, from the local craftsman to the nationwide construction team.

Now a local gas and water installer has made the following proposal:

Since there is space in the basement as well as a chimney, he suggests first installing a gas boiler. He can offer a very good price. However, we will prepare everything for the heat pump, lay empty conduits to the outside, prepare connections, design the heat storage, and prepare it for integration with the heat pump.

He believes current prices for heat pumps are still out of this world, he himself says the subsidy is added 1:1 to the price.

Of course, the gas heating can also be operated at low temperature, which means the hydraulic balancing only needs to be done once.

Are there any further sober opinions on this?
Regards

What is the price difference? I wouldn't install anything if I know the watch is ticking. In the end, you pay more anyway.

He is of the opinion that current prices for heat pumps are still astronomical, he himself says the subsidy is added 1:1 onto the price.

In my impression, the price is above all still marked up by the installers. I do not see the astronomical prices in retail.

Wolf CHA0A7 - indoor and outdoor unit with hot water storage under 8k Panasonic Aquarea LT-L indoor and outdoor unit with hot water storage under 7k Vaillant Arotherm VWL 75/6 with hot water storage approx. 8.5k

All good devices by the numbers and for the installer practically plug and play thanks to pre-configured setup.

I don’t see the point in planning a hybrid system for the building size. For the additional costs of the gas boiler, you can replace all radiators twice over and thus simply do without it.