Depending on people's point-of-view, solar panels were either laughed at or praised.
Enthused by this idea, we installed some self-made panels in our garden. When taking a shower or bath now, we enjoy the fact that the sun has warmed the water. Many years have passed and this solar installation has worked without a hitch and without any maintenance! Nowadays we are able to implement the use of solar even better than we did with our retro-fit.