There are some very interesting developments in solar cell efficiency improvement. There's a 1 minute ad at 7:30, but overall this is an informative video on solar panel development if you haven't been following individual articles in trade journals and science publications.
![[Hearth.com] Solar Cell efficiency progress [Hearth.com] Solar Cell efficiency progress](https://www.hearth.com/talk/data/attachments/281/281276-caefdc07b354174cceed0c019d1e6102.jpg?hash=i3tjgdDEfC)