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

Considering Tesla's recent Model 3 handover party, it's not all that surprising that the focus of Wednesday's earnings call was production for the company's first mass-market sedan.

But 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 representative said the solar roof was sold out until well into 2018, but they declined to provide exact order numbers.

Tesla is selling the solar roof tiles and traditional solar panels after acquiring SolarCity in November as part of a $2.1 billion deal. The new roof has been successfully installed on employees' homes, Tesla said on the earnings call.

Here's what we know about Tesla's solar roof: