Tesla has announced that yet again, the all-electric Tesla Semi will be delayed with production and deliveries now penciled in for 2021.

When the Tesla Semi was first presented to the world by Elon Musk at a ceremony in California back in November 2017, the electric automaker said the first customer deliveries would start in 2019. Last year, it revealed deliveries would be pushed back to “limited volumes” in 2020, but that will no longer happen either.

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Tesla confirmed the delay of the Semi in a statement regarding its first-quarter financial results. “We are shifting our first Tesla Semi deliveries to 2021,” it said without providing more details.

The delay of the Tesla Semi is unfortunate for those who have already placed an order for it, including large companies such as Walmart, Pepsi, Anheuser-Busch, FedEx, UPS, DHL, Sysco and more. At the same time, this delay isn’t all that surprising considering Tesla’s history of launching vehicles later than initially promised – although, to Tesla’s credit, the Model Y arrived well ahead of schedule.

Few additional technical specifications have been announced about the Semi since its 2017 unveiling. At the time, Tesla said it would be offered in 300 mile (482 km) and 500 mile (804 km) guises. However, Elon Musk has since stated that testing shows the production-ready Semi will actually have a range closer to 600 miles (965 km) when towing a load.

Tesla recently completed its winter testing program for the Semi at its facility in Alaska.

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