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An energy transition is underway. Solar and wind are being added in ever-greater numbers. Electric vehicles are becoming more commonplace. Meanwhile, policy makers are grappling with the right mix of policies to pay for it all.

Cie. Maritime Belge SA has built the first commercial ship that runs on hydrogen and produces zero pollution, taking the world a step closer to cargo without emissions.

The millions of small civilian drones plying the nation’s skies can cause significant damage to airliners and business jets in a midair collision, new research commissioned by the Federal Aviation Administration concluded.

An Uber Technologies Inc. whistleblower made explosive allegations that a company team stole trade secrets to gain an edge over rivals, prompting a judge to further delay the ride-hailing company’s trial with Waymo.

Tesla Inc. said the expected price for its all-electric Class 8 truck will range from $150,000 to $200,000.

Mercedes-Benz, conducting the biggest test using drones to ship everyday items such as ground coffee and cellphones, said the mini-aircraft completed 100 drop-offs to strategically placed vans in Zurich with a perfect safety record, and more deliveries are planned for next year.

Nikola Motor Co. plans to locate its emerging network of hydrogen fueling stations to accommodate the logistics network of a major manufacturer, according to the truck maker, which did not identify the manufacturer.

Ryder System Inc. awarded a four-year fueling contract to Clean Energy Fuels Corp. to supply Ryder’s fleet of liquefied natural gas heavy-duty trucks serving Toyota Motor Manufacturing’s plant in Georgetown, Ky., Toyota’s largest production facility in North America.