Hyliion moves24 Sep 2025 21:06
United States Environmental Protection Agency (EPA) has issued a determination confirming that Hyliion’s KARNO™ Power Module is not regulated as an internal combustion engine under existing federal law and regulations. Instead, the KARNO Power Module will primarily be subject to local air permitting requirements applicable to power generation installations.
Hyliion Holdings recently announced that Darrell Preble has joined Hyliion as the vice president of operations. He will be responsible for scaling Hyliion’s manufacturing infrastructure to bring the KARNO Power Modules to market efficiently and cost-effectively.
Preble brings experience from the energy industry, with a track record of building scalable operations and driving operational excellence. Prior to joining Hyliion, he held senior leadership positions at Cummins and Husky Technologies, where he oversaw large-scale production initiatives and implemented supply chains that supported commercialization.
“As we prepare to go to market, strengthening our operational capabilities is critical,” Thomas Healy, founder and CEO of Hyliion, said. “Adding Darrell to our leadership team reinforces our ability to scale efficiently, optimize costs, and ensure that the KARNO technology can be deployed across industries at a manageable pace.”