Tesla Battery Day’s live broadcast is about to go from 0 to 60, with Elon Musk highlighting new developments and industrialization targets for 2021 and beyond. It will also have a shareholder meeting.

Tesla frequently combines investor meetings with public announcements, such as last year’s Independence Day live broadcast in which the new appears Tesla Autonomous. Today, all of the signs (and Musk’s tweets) point to Tesla announcing production of its internal batteries, as well as potential developments in battery technology.