Tesla Chief Executive Elon Musk delivered the company’s first heavy-duty Semi on Thursday to PepsiCo without offering updated forecasts for the cargo-hauling truck’s pricing or production plans. Musk, who appeared onstage at an event at Tesla’s Nevada plant, said the battery-powered, long-haul truck would reduce highway emissions, outperform existing diesel models on power and safety and spin-off a fast-charging technology Tesla would use in its upcoming Cybertruck pickup. “If you’re a trucker and you want the most badass rig on the road, this is it,” Musk said, noting that it was five years since Tesla had announced it was developing the all-electric truck. Still, industry experts remain skeptical that battery electric trucks can take the strain of hauling hefty loads for hundreds of miles economically. Tesla did not announce pricing for the Semi at the Thursday event, provide details on variants of the truck it had initially projected or supply a forecast for deliveries to PepsiCo or other customers. Tesla said it would begin using the Semi to ship parts to its plant in Fremont, …