[perfunctory]

> Most people just don't have the money to spend on a problem which will not affect them for the next 10 years, unless it will benefit them.

With all due respect, the parent did not ask about the "most people". The question was about you.

[piotr1212]

As I wrote, I live in a large apartment building with a large hoa. I just cannot put panels on the roof myself, the hoa needs to agree.

Our plan was to use the maintenance fund to fund the panels. Money from the fund is not needed for the next 10 years, when the bitumen roof will need to be replaced. By that time the panels should have returned on its investment. Now let's say the laws will change and the panels will not return their investment, then all of a sudden everyone needs to put in a few k for replacing the roof, which, most of my fellow residents don't have.

About me: If I would have to choice to buy panels which will not return on it's investment, I'd probably spend the money on an electric car, solar thermal collector, heat pump, insulation, shower heat ex-changer or anything else which has a better roi.