Is self-sufficient energy supply possible through photovoltaics and geothermal energy?

Our house (Kfw 70) will have 160 sqm of living space, two floors, and a basement.
My dream would be to become completely independent from energy companies and produce my own energy. Is it possible to produce enough energy for heating and hot water solely with a photovoltaic system and a ground source heat pump?
And can this be done year-round, or is that not feasible?

Thank you very much for your answers.

Whether an autonomous energy supply for your house is possible can be calculated by a specialist. However, I do not believe that an autonomous energy supply would be possible with KfW70. This is aimed for in passive houses, but their construction and technical equipment go far beyond the requirements of KfW70.