Anheuser-Busch is reserving up to 800 of Nikola Motor Co.’s hydrogen-electric trucks, one of the largest orders so far for alternative-fuel vehicles as the company races with Tesla Inc. TSLA -5.55% and other manufacturers to move trucking away from diesel-guzzling big rigs. The U.S. subsidiary of Anheuser-Busch InBev SA BUD 2.05% plans to use the vehicles for long-haul deliveries from breweries to its distributors starting in 2020. Nikola says it will build 28 hydrogen stations along the routes of the beer maker’s so-called dedicated fleet, between 750 and 900 trucks that bear its branding but are generally owned and managed by outside carriers. Truck operators are increasingly looking at alternative-fuel vehicles as the technology in the field improves and pressures grow to cut operating costs and reduce emissions. Companies have been testing trucks that run on electricity or fuels such as compressed natural gas , but commercial operations generally […]