I doubt your numbers then, as when I googled I found “There have been no deaths caused by carrying panels or laying panels on a roof. Electricians are required to connect the panels and inverters as it is.” -- https://reneweconomy.com.au/trojan-horse-industry-angry-at-q... so in the 158TWh generated by solar in Australia, that gives an average deaths per TWh of 0.003, nearly an order of magnitude lower.
Why doesn't solar+battery provide reliable generation capabilities? There are any number of off-grid solar only projects, it's simply a matter of cost, not capability.
It's odd that you bring up cobalt, as https://www.iea.org/reports/global-ev-outlook-2023/trends-in... and https://www.energy-storage.news/lfp-to-dominate-3twh-global-... both suggest that cobalt is no longer relevant. It seems that sodium ion is also poised to replace lithium ion. Is cobalt the most dangerous mineral to mine?
Why doesn't solar+battery provide reliable generation capabilities? There are any number of off-grid solar only projects, it's simply a matter of cost, not capability.