Two for the price of one is Tesla’s philosophy when it comes to investing in extending its Nevada gigafactory. The Nevada gigafactory doesn’t build cars, it focuses on battery packs and energy-storage products, such as Tesla’s Powerwall. When the Nevada extension is completed, the facility will house and build full-scale Tesla Semi-truck production and a 100 GWh 4680 cell factory. The latter will produce enough batteries for 1.5 million light-duty vehicles annually.

The announcement was made Tuesday, January 24. The investment will increase the Nevada Giagfactory’s footprint by up to 4m sq ft and create 3,000 new jobs. Tesla has already invested $6.2BN in the Nevada facility since it opened in 2014. The Tesla Semi is 5 years behind schedule due to numerous delays, and development has been plagued by technical challenges.

The Tesla Semi is able to travel 500 miles on a single battery charge and when fully loaded it can muster speeds of 65mph. The Semi adopts the three-motor setup currently used in the Plaid Model S and Model X.

Tesla says that a single motor is about the size of a football, and all three electric motors combine to provide total system output that is three times more powerful than a diesel truck.