Megapack 3 starting production.Congrats Tesla Megapack team!Tesla Megapack (@Tesla_Megapack):Megapack 3 is officially rolling off the line at our newest Megafactory in Brookshire, Texas!The factory went from groundbreaking to operation in just 16 months & has a designed capacity of 50 GWh/year dedicated to Megapack 3 https://t.co/PJTyboJCcp ...