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I was told so in the store, and the sales guy said that there was actually less order backlog for the solar roof than for panels. He said "I guess about 6-8 weeks" but I certainly don't trust that. Except for some routine paperwork, I haven't heard anything more from them yet.
Electrek just reported Tesla raised the price of the powerwalls $500 due to demand. Interesting the demand for their cars is much higher and they’ve been lowering costs there. I guess battery supply is limited at this point and they’d rather reduce demand for the powerwalls