How do I achieve the "EE" in Kfw 55?

Hello,

I am planning to build a house with Kfw-55 standard with an air heat pump. Can I achieve the "EE" in the Kfw-55 funding solely through the air heat pump (meaning a grant of 26,250 euros instead of just 18,000 euros), or is an additional renewable energy source, such as a photovoltaic system, mandatory for EE?

Thank you very much for helpful information!

That depends – on many things like windows, window frames, masonry, insulation, window sizes and orientation, etc. Then it is calculated based on the house.

That depends on many things like windows, window frames, masonry, insulation, window sizes and orientation, etc.

All these things are planned to meet the Kfw-55 standard.
My question is whether the air heat pump alone can raise the standard to Kfw-55-EE.

These things are all planned to achieve the Kfw-55 standard. My question is whether the air heat pump alone can raise the standard to Kfw-55-EE.

Why do you want to raise it if it is already calculated to be achieved? You write that with the air heat pump a 55 is calculated. And you ask whether you can raise to 55 with the air heat pump. So what now?

I believe he thinks that ee is a further improvement, but the e e stands for energy efficient, right?

Yes, depending on which air-water heat pump is used, direct renewable energy applies.