You may have underestimated your solar requirements. You will likely need at least 2 times more solar panels. 5 hours of sunlight each day does not mean you'll get maximum wattage from your panels during those 5 hours. You may need more batteries as well because if you intend to run the batteries down to 20% or 30% everyday, those batteries will die in a couple of years.
Have you considered that your mining rigs might be fine for now, but as hash difficulty goes up, it'll render your mining rigs obsolete in 1 or 2 years? And don't forget about when the mining rewards gets halved. That is expected to happen in 2024. If mining for Bitcoin, you'll get 6.25 bitcoins for every solved block right now. In 2024, it will drop to 3.125 bitcoins for each solved block. Halving occurs about every 4 years.
Traditionally, miners have constantly upgraded hardware and change their mining strategy every 6 months or a year. If you stay with what you started with, you'll be left in the dust after a year.
Based on your numbers above, assuming that you have recent mining rigs, I estimate that your rigs will be mining at around 10 TH/s. Using the profit calculator at
https://bitcoineval.com/calculator.php your daily expected revenue is $2.88, with free electricity. In a year, that's under $700 with the assumption that hash difficulty will not increase. Is making $700 a year really worth your time in doing this?
BTW I used to have a small mining farm back when Bitcoin was $600. It is $42,000 today. I made my money back then and got out quickly. It was not worth the time and effort and the possibility of burning the house down. These machines run extremely hot and back then I was only mining the in GH/s range. Any mining now has to be done in the TH/s range. They use tremendous amounts of power and create a lot of heat. It's like running multiple space heaters 24 hours a day.
