KEY POINTSTesla CEO Elon Musk led an event to kick off deliveries of the company’s Semi, a heavy-duty electric truck, on Thursday.Tesla first showed off the design of the Semi in late 2017. It began producing the trucks in Nevada this year.Tesla Semi is not the only fully electric Class 8 vehicle on offer at this point. Competitors include Volvo, Daimler and even Nikola.Tesla CEO Elon Musk kicked off deliveries of the company’s first few production Semi trucks on Thursday, speaking on stage at the company’s factory in Sparks, Nevada, with Dan Priestly, the company’s senior manager for Semi truck engineering.As CNBC previously reported, Tesla set up lines and started production of the Semi outside of Reno this year at the site where it primarily makes the battery cells, drive units, and battery packs that power its cars. Musk and Tesla did not say on Thursday how many Semis it is delivering.CNBC.com