I don't understand the obsession with mining using solar power. To me it's the worst
combination because efficient mining requires reliable power 24/7.

I would look at it from a different point of view. How can I best use the solar power in real time?
Can I use it all in real time? How can I schedule my power use to maximize the use of solar and minimize
the use of grid?

Everything you offload from the grid reduces your mining costs.