Dude, there is no way that solar batteries or panels could deliver the kind of raw, sustained power that it takes to break ground with a tractor. It’s an engineering impossibility.
Solar panels will not anywhere (near) power a tractor real-time. No way, that is true.
However if enough battery power can be built into a small tractor, think of a Prius - enough solar panels could be used to recharge a small electric tractor.
Maybe one day on, two days charging. Or one day on, then swap out the battery packs to recharge on the solar array, while the next day using the battery pack charged via an array the previous day.
I’m already using a battery vehicle (very simple scooter) on weekends for short trips - which can (I’ve done it) be re-charged in a day via solar - on appx $100 of very basic, small solar panels.
Total cost for the panels, and scooter, $300.
Granted I’m not going anywhere very far, or charging at all unless the sun it out.
But seriously I know this works. I’m doing it.
Larger batteries. More panels, More batteries, and absolutely I could farm 40 acres. I’m telling you.
Absolutely it’s possible.
PS off topic right now watching FNC right now - sort of liking this guy Buddy Roemer.
In fact, quite bit. :)