There is plenty of information online about azolla and solar power.

Right now solar has become much more accessible and cheaper, thus allowing for new synergistic combinations. A new one being the production of azolla shaded by solar panels on a large scale.

https://en.wikipedia.org/wiki/Azolla https://en.wikipedia.org/wiki/Solar_power

If you have any questions please feel free to ask, and if you have learned something new, please comment and share!