The Toyota CARB ZEP-certified powertrain kit is now ready for commercialization, with production slated to start for customers later this year at the company’s Kentucky manufacturing plant. This newest generation of powertrain reflects learnings and improvements in things such as energy efficiency, package size from extensive real-world testing and development from the company’s fuel cell development engineering team, Toyota said. “Fuel cell electric powertrains are advantageous for heavy- and medium-duty transport when compared to other all-electric options, such as battery electric, as they are often lighter to allow for more payload, and they offer more uptime thanks to fueling times that are much closer to conventional diesel powertrains,” according to Toyota.