Tesla's Elon Musk posts photo of Semi trucks before first delivery

The Tesla Semi truck is ready to make its first delivery.

Tesla CEO Elon Musk on Wednesday posted a photo of two Semis before the electric big rigs embarked on a trip to transport battery packs from the company’s Gigafactory battery plant in Nevada to its car assembly facility in California.

Since its debut in November, the Tesla Semi has attracted orders from United Parcel Service, Anheuser-Busch InBev, Walmart, PepsiCo and other companies with large truck fleets. The Semi has an estimated range of 500 miles on one charge, and it can travel from zero to 60 miles per hour in five seconds without a trailer, according to Tesla.

The Semi is scheduled to enter production in 2019.