Electricity meter for heat pump in combination with BAFA and photovoltaic

Somehow it goes in circles :D ... The flange heater is the heating element in the heat pump, which can be operated purely electrically if needed (failure of the heat pump). 1 kW in, 1 kW heat out. If everything works, the heat pump does this 100% including doubling effect. 1 kW in, 3 kW heat out.

The question was generally how to wire the heat pump with the photovoltaic system so that they are in one electrical circuit and still BAFA compliant. I think with a bidirectional meter for the heat pump and photovoltaic and the heat pump getting its own intermediate meter, it should be fine. The required heat meter is integrated.

Just say the model. It is quite likely that [Wärmepumpe] also has an integrated electricity/energy meter.

The question was generally how to wire the heat pump with the photovoltaic system so that they are in one electrical circuit and still comply with BAFA. I think with a bidirectional meter for the heat pump and photovoltaic and the heat pump getting its own submeter, it should work. The required heat meter is integrated.

Hello Markus,

I have the same setup with a BAFA-funded heat pump and photovoltaic on the roof, so I am also interested in the topic, although I cannot contribute anything. At the same time, however, I do not quite understand where the actual problem lies. Does one really have to pay special attention to the wiring here, as long as the heat pump has the required meters integrated? Isn't the latter one of the criteria for the eligibility of the heat pump anyway, separate from the external wiring?

Tell me the model. Most likely it also has an electricity/energy meter integrated for the heat pump.

This is the Vitocal 200-S AWB-E-AC 201.D0

The question was generally how to wire the heat pump with the photovoltaic system so that they are in one electrical circuit and still compliant with BAFA. I think with a bidirectional meter for the heat pump and photovoltaic and the heat pump getting its own submeter, it should work. The required heat meter is integrated.

Exactly like that, although this does not allow the use of a discounted heat pump electricity tariff. Depending on the region, however, this is negligible anyway, since there is hardly any price advantage.

The intermediate meter can be spared 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 in our Vitocal (model 333):

A heat pump electricity tariff is generally not needed if photovoltaic is available anyway. So, a photovoltaic-typical two-way meter is sufficient, and that’s that.