Tesla has said little about its solar roof since it began taking orders -- here's what we do know (TSLA)

Considering Tesla's recent Model 3 handover party, it's not all thatsurprising that the focus of Wednesday's earnings call was production for the company's first mass-market sedan. Still, it was also the first earnings report since Tesla started accepting orders in May for its new solar roof — and Tesla was relatively hush about the new product. A Tesla spokesperson said the solar roof is sold out well into 2018, but declined to provide exact order numbers. Tesla is selling the solar roof tile...