Yeah a total mess but I can see where it came from, he said he bought a small panel that had a USB port, this is where the confusion started, there are a ton of small foldable panels on Amazon that have a DC output for charging phones or laptops, and there are small solar panels for security cameras also, as all of them run on DC on either 12 or 15W.
It's hard to tell how someone got confused, but sure that mindrust isn't the average "post anything" kind of member, so I am sure something confused him along the way, I believe it's the fact that miners do indeed need DC, so to someone who doesn't understand much about the subject, they would not think that DC devices need AC power input, the logic behind it is not easy to understad.
Back to the issue at hand, I'm not sure how he is running those asics on 10kw panels
Hard to tell how does he operates, his battery has the capctity of 28,800Kwh, so nearly 3 hours for the set up assuming 100% DoD, but if I had to guess, he is probably not running them at stock settings, S9s can run on Low-Power-Mode doing 750w range, L3s 600w range, and S19 1800w range. so we are talking 30-40% less power consumption for the whole set up, but let's hear from him.