AUSTIN, Texas–(BUSINESS WIRE)–Hyliion Holdings Corp. (NYSE American: HYLN), a developer of modular power plant technology, today announced that Hyliion will showcase the KARNO technology and participate in the 2026 Pennsylvania Defense and Innovation Summit at the U.S. Army War College on July 14 and 15. Thomas Healy, Founder and Chief Executive Officer of Hyliion will join this invitation-only gathering hosted by Senator Dave McCormick (R-PA). Remarks at the summit are expected from Presiden