Not exactly, it was a normal solar panel business started by Elon's cousins (SolarCity), but it wasn't going well, and in the end it was bought by Tesla for much bigger money than it was worth (let's say it was a bailout for Elon). Today Tesla solar panels are maybe 0.1%-1% of the business, they stopped giving any data on it years ago.

If so, they are still going https://www.tesla.com/solarpanels so I guess not