Elon Musk will aim to quiet any doubts about Tesla’s standing in the electric car race on Wednesday when the serial entrepreneur convenes an investor day.

Invoking his trademark flare, Musk promised to reveal “Master Plan 3” at the gathering, entailing “the path to a fully sustainable energy future for Earth,” he said on Twitter in early February.

The event, which will be held at Tesla’s factory in Texas, will be webcast at 2100 GMT on Wednesday.

Caldwell would like to see more clues on how Tesla plans to boost production. Other key watch items include a concrete plan to release a more affordable electric vehicle (for around $25,000), as well as a new vehicle model after the last Tesla launch in 2020.

The gathering comes as Tesla attempts to guard its advantage in EVs as it faces intensifying competition in the market.