I did an edit of your post to get to the narrative.
I do have a prototype that can hold 2 L3+ or 1 S9i
It is outdoors a doghouse available at Amazon.com
I am going to take a photo or two of it now.
Sky has inverter/converter power source on order.
The power source should have a long life no batteries involved
Easy to setup no grid connection.
the panels rate 20 years
the inverter/converter is 5 or 7 years.
So if we can sell it cheap enough it could work out.
maybe it does not last the timespan it should
Basically it has been tried already in the days when Bitcoin could still be mined by the GPU cards. Some guy did that in Germany or in Finland. It was linked on this forum, but either I can't find it or it is gone. He couldn't keep his setup working even a single full year.
The main technical point is that protection from the elements in a non-trivial undertaking. It is not only about keeping it cool, it is also about keeping it warm and dry when not operating or operating with constrained power.
The moisture condensation and icing will void any warranty for the electronics, unless you buy marine-rated equipment.
Additionally, the warranty on panels in the USA will probably be unenforceable. I've been told that those companies reselling and installing the solar equipment are intentionally created to go bankrupt, they may as well offer 100 years of warranty. That is apparently some political stuff more difficult to explain, which I don't fully understand. I didn't see the actual panels discussed in this thread, but I've seen some other sold and installed in the USA and they weren't designed to last.
I'm sorry for raining on your parade.