very interesting, thanks for sharing!
i always think that solar energy could be used much more, especially in places where the sun shines so much anyway. it would almost be a waste not to use it. and there's enough space on the water, so good idea!
and yes that's a good question, I'm not sure if the tiles would ever have to be cleaned? Didn't read anything about that!
you're welcome and I agree with you: we need to utilize this more.
Repurpose a roomba to 'do' windows....or in this case solar panels.
