Roof with photovoltaic or other investment, any experiences?

I have decided on photovoltaics. Energy prices will continue to rise.

Heat pump and electric car go well together

False assumption. The electricity for the heat pump is needed in the cold, dark months. The e-car is usually not at home during the day, so it cannot be charged there either.

Energy prices will continue to rise.

Not true, the electricity price is largely stable, only the taxes on it are increasing.

Fallacy. The electricity for the heat pump is needed in the cold, dark months. The electric car is mostly not at home during the day, so it cannot be charged there either.

How do you know all that? Unconfirmed assumption on your part.

Not true, the electricity price is largely stable, only taxes on it are increasing.

Oh really. What is the energy price then? What do you pay? With or without taxes?

How do I know that the electricity for the heat pump is needed more in the darker season? Hmm, when do you think people heat? And that people use the car during the day, that should be the case when it’s needed. However, if you are at home all day, it looks different. But then the question arises, why do you have a car?! But it’s okay, you have your opinion, I mine. I actually find my time too precious to talk with you.

But it's okay, you have your opinion, I mean.

Exactly, and everyone builds according to their own situation.

My time is actually too precious to talk to you.

It's all up to you.

Simply loosely based on Dieter Nuhr: ""When you have no clue....

Could you please explain why you come to these different conclusions? There are certainly some who are considering this, reliable numbers would be very helpful.