How to achieve KFW 55 EE with an air heat pump?

Dear forum,

Is the KFW 55 EE standard also achievable with an air heat pump? Is it sufficient if I primarily use green electricity to operate the pump to meet the requirement of heating with renewable energies?

Hello Hendrik1980,

to my knowledge, it doesn't make a difference what kind of electricity the heat pump is operated with. It is also difficult to prove whether the power coming from your socket is actually [eco], [nuclear], [photovoltaic], or [treadmill] electricity.

The point is that the chosen heating method is powered by renewable energy.

I just don't understand that. The heating method in the case of the air heat pump would be electricity, and that is not per se renewable.

with us, regenerative energy was prescribed,
air heat pump is considered as fulfilled (Berlin),
in the future, photovoltaics will also be prescribed and later on passive house