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HANOVER, Germany — Daimler Truck CEO Martin Daum said his company is pursuing a clean-energy strategy built around electric and fuel cell technology, setting aside natural gas as a component of the plan.

It was a bit surprising when Cruise, the autonomous vehicle startup that’s 80% owned by General Motors, said it planned to expand its robotaxi service to Phoenix and Austin over the next three months.

The Pennsylvania Turnpike is jumping into solar energy production to power its maintenance and office buildings with a long-term goal: using solar-generated power to electrify portions of the toll road so electric vehicles can charge as they travel.

Aurora Innovation Inc. CEO Chris Urmson recently laid out a range of options for the self-driving company to respond to worsening market conditions and partners pushing out timelines, including a possible sale to Apple Inc. or Microsoft Corp., according to a document seen by Bloomberg.

Tesla Inc. is plotting a potential lithium refinery on the gulf coast of Texas, a move that would bolster the company’s battery production efforts and further expand its footprint in the state.

U.S. aviation regulators approved designs for the first flying drone built specifically for shipping packages, a major step forward for the fledgling remote delivery industry.

Autonomous truck developer Locomation announced an eight-year agreement with El Reno, Okla.-based Stevens Trucking Co. to provide the carrier with its human-guided Level 2 autonomous relay convoy turnkey system.

Gatik, a California-based autonomous trucking company, will begin a Dallas route in partnership with century-old business equipment firm Pitney Bowes.

DroneUp, the sole drone partner of Walmart, announced plans to expand its headquarters and establish a research and training facility outside Petersburg, Va., creating 655 new jobs.