I have been working on creating the most realistic, cheapest, and most productive setups possible, and I think I’ve gotten close.

This combines the electricity production of solar, and the carbon capture power of azolla. The solar power helps keep the azolla safe from harsh direct sun, and the azolla pond below helps cool the panel with subtle evaporation cooling.

How does it make money? Excess electricity sale and azolla biomass which can be used as animal feed or squeezed into cakes biochar because it fixes nitrogen from the atmosphere.

This infrastructure start up cost is very simple, accessible, and easy to maintain. This would ideally be done in places that don’t experience cold winters, ideally somewhere like Southern USA. It can be done in Summer in the Northern hemisphere but only for about 4 months a year. Any type of heating or infrastructure greatly increases costs.