Electricity meter for heat pump in combination with BAFA and photovoltaic

You can skip the intermediate meter because the function required by BAFA to determine the electricity consumption and heat quantity of the heat pump is integrated into the heat pump – at least with our Vitocal (model 333):
[ATTACH alt="Vitocal I.jpg"]65280[/ATTACH] [ATTACH alt="Vitocal II.jpg"]65281[/ATTACH]

You generally don’t need a heat pump electricity tariff if you already have photovoltaic. So, a photovoltaic usual two-way meter is sufficient, and that’s that.

You can do without the intermediate meter because the function required by BAFA to determine the power consumption and heat output of the heat pump is integrated into the heat pump – at least with our Vitocal (model 333):
[ATTACH alt="Vitocal I.jpg"]65280[/ATTACH] [ATTACH alt="Vitocal II.jpg"]65281[/ATTACH]

You don’t really need a special heat pump electricity tariff if you already have photovoltaics. So one two-way meter typical for photovoltaics is sufficient, and that’s it.

Well, if you want two separate tariffs now, you also need two meters. Of course, this is not mandatory – you could also run the heat pump on the normal household electricity (then logically only one meter). Whether a heat pump tariff is worthwhile, you have to calculate. Why do you want to add photovoltaics in 2-3 years and not install it right away?

We left them out for cost reasons for now. So, at the current time, it definitely makes sense to install 2 meters (provided it makes economic sense). But as soon as the photovoltaic system comes, you will only need space for 1 meter, namely the two-way meter you mentioned, right?