Carbon nanofibres made from CO2 in the air
There are some symbiotic relationships between ocean water desalination and molten salt electrolysis and photo-voltaic electricity collection.
Create
* salt (hopefully of the same kind required for the process described in the article), * clean water, * carbon fibers (which can be used to create batteries to store surplus energy from solar during peak solar hours), and * remove carbon from the air (while creating pure oxygen gas)