GAAP accounting for Tesla's solar VIEs is complex and obscure. A quick summary:
1. Tesla gets monthly checks from customers
2. Tesla uses this cash to pay non-recourse lenders and VIE equity partners
3. Tesla downloads the quarter's VIE GAAP profit/loss from a random number generator
4. Tesla's cash flow statement reconciles item 3 with items 1 and 2.
(Some details may be a bit off)
Tesla doesn't disclose enough detail to figure out what the numbers really mean, but if you damage your brain enough reading old SCTY SEC filings, press releases and investor presentations you discover the VIEs are pretty close to cash neutral. The cash that comes in from customers each month mostly goes to lenders and equity partners. This situation continues until the lenders and equity partners are fully paid off in 10-15 years, after which Tesla gets to pocket most of the cash flows.
At least that's the plan. Large scale warranty repair or customer default issues could mess this nice scheme up. Tesla's disclosure in this regard is extremely weak - e.g. WalMart stopped paying on 248 large systems last year and investors heard nothing until the lawsuit.
Anyway, Bill C is as good as it gets on Tesla VIE accounting, but I disagree with his interpretation. The real issue is what Tesla's VIEs receive each month vs. what they must pay. Bill doesn't address that, mostly because Tesla doesn't disclose it. He instead focuses on the income statement and cash flow amounts, which Tesla does disclose, but which are pretty much meaningless.
Bottom line - it's a nothingburger. The main issue with SCTY is warranty/default, which Tesla does not disclose. The other issue is the shareholder lawsuit over the SCTY bailout. I won't predict the outcome since these cases always seem to turn on some legal technicality that seems irrelevant to me. Some of the info coming out in the filings is pretty damaging, though.