EVs, carmakers and their battery partners are planning to install 5.8 terawatt-hours of battery production capacity by 2030, according to data from Benchmark Mineral Intelligence and the manufacturers.

Tesla outlined a Battery plan to build 20 million EVs in 2030 using an estimated 3 terawatt-hours of batteries. However, this has been updated where Tesla plans to develop its own batteries to 1 TWh/year in the US alone and use terawatts hours of batteries from suppliers like CATL.

Every 10 million cars per year (50 kwh packs) needs 500 GWh/year of batteries.

Sourcing from CATL and others. Tesla could have enough batteries for 20 million cars by 2025. The number of electric cars that Tesla could produce would increase when they introduce the $30k car with double the production, lower weight and probably a 25 kwh battery pack.