Great news to hear about the thin film solar. Geo I like that idea on how to boost solar power output.
How to boost any solar panel output by 75%
I know this works because I used to have a hobby solar panel that came with angled plastic mirrors on either side that you could insert to capture more light and reflect it onto the panels. It did make a significant difference in power output and these were low grade mirrors. I used to power a radio with it. I'm surprised I have not seen a product that does this for standard domestic rooftop panels.