Understood but I still find the numbers a bit hopeful. Solar panels work ideally at 70 degrees F and degrade in 110 degree temperatures. I've designed and supervised the installation of dozens of large array systems. Also, solar panel costs have, lately, not gone down, they've moved up in US$ terms. It's possible these calculations do not consider land cost or the cost to bring utility level sub-stations to the site.
In any event, all of my points don't negate your thesis, solar is quite inexpensive as long as it's piggybacking on an existing infrastructure and there's not so much mid-day output that storage is required.
Rule #1, Don't lose money. Rule #2, read rule #1. - WB.
