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The orders give Tesla a much needed financial boost.

Tesla's electric semi won't be available until 2019, but more and more companies are placing bets on it. Anheuser-Busch and Sysco are the latest to announced orders.

Beer giant Anheuser-Busch earlier this week ordered 40 semi trucks from Tesla. It's not clear whether the order is for the 300-mile range trucks costing $150,000 a pop, the 500-mile range versions at $180,000 each, or the "Founders Series" first run examples costing $200,000 per. The trucks align with the company's plan for reducing carbon emissions by 30 percent by 2025.

The Anheuser-Busch order was the largest at the time, but it was quickly followed up by restaurant supplier Sysco, who placed an order of 50 Tesla trucks. While a small fraction of the company's 7,000-strong fleet, it is part of the company's environmental impact reduction goals. Sysco's president and COO Tome Bené also said that he wanted to spur enthusiasm for the technology.

The trucks will include the autonomous and "train" technology that will allow several trucks to follow one leader with a human driver. Tesla says the trucks will pay for themselves after two years, thanks to reduced fuel and maintenance costs.

Anheuser-Busch and Sysco join Walmart, Meijer, and JB Hunt as early adopters of Tesla's electric semis.