The issue is monetizing the excess power produced by adequately-sized solar facilities for 9 months out of the year. Getting enough people to point giant lasers into space would solve the overcapacity problem that comes with solar generation outside of the tropics. Crypto has a slightly higher ROI.
Desalination, fischer-tropsch synfuel production, hydrogen electrolysis, demand-shaping of conventional industries like steel production and aluminum smelting, widespread adoption of electrified parking garages are some other options. Even other maligned, power-hungry technologies like AI can address the overproduction problems of solar better than conventional grid-scale storage solutions.
You having a bad day? What can I do to make your life better?