Welcome to our dedicated page for Hyliion Holdings Corporation news (Ticker: HYLN), a resource for investors and traders seeking the latest updates and insights on Hyliion Holdings Corporation stock.
Hyliion Holdings Corp. (HYLN) is a developer of electricity-producing technologies centered on its KARNO Power Module, a modular, fuel‑agnostic power generation system. Company news frequently highlights progress in testing, regulatory developments, and commercialization efforts for this distributed power platform.
Recent announcements have covered extended operational testing of KARNO units, including over 100 days of operation on a customer asset without unplanned hardware‑related downtime and successful completion of a mission‑representative U.S. Navy load profile. Hyliion also reports internal emissions testing results showing that the KARNO Power Module can meet stringent local air‑quality standards without exhaust aftertreatment.
Regulatory news includes confirmation from the U.S. Environmental Protection Agency that the KARNO technology is not regulated as an internal combustion engine under existing federal rules, which shapes the permitting pathway for future deployments. Additional updates describe fuel‑flexibility demonstrations, such as dynamic switching between natural gas and propane under load, and work on integrating the technology with high‑voltage DC architectures relevant to AI data centers.
Investors and observers following HYLN news can expect coverage of quarterly financial results, conference presentations, development contracts with organizations such as the Office of Naval Research, and operational milestones related to manufacturing and certification of the KARNO Power Module. This page aggregates those updates so readers can track how Hyliion’s technology, markets, and regulatory position are evolving over time.
Hyliion (NYSE American: HYLN) will report Q4 and FY 2025 financial results after market close on Tuesday, February 24, 2026, and will host a conference call and webcast on Wednesday, February 25, 2026.
Conference call is at 10:00 a.m. CT / 11:00 a.m. ET; an archived webcast will be posted on the company Investor Relations website.
Hyliion (NYSE American: HYLN) will present at the 2026 Needham Growth Conference on January 16, 2026. Founder & CEO Thomas Healy and CFO Jon Panzer will present at 9:30 a.m. ET. The presentation will be webcast live and available for replay, and Hyliion executives will be available for one-on-one meetings during the conference. For webcast registration or invitation requests, contact the conference email provided.
Hyliion (NYSE American: HYLN) completed the first phase of performance testing of its KARNO™ Power Module on a representative U.S. Navy load profile under a program funded by the Office of Naval Research.
The integrated system demonstrated load-following capability, reliability, and endurance during rapid load changes and high-stress conditions. Hyliion will next run operations under simulated ship-motion and complete several hundred additional run hours on dynamic profiles before at-sea demonstrations.
Hyliion (NYSE American: HYLN) announced a successful demonstration of dynamic fuel switching in its KARNO Power Module on November 17, 2025. The system transitioned between natural gas and propane while under load, maintaining continuous power generation without interruption, shutdown, or hardware changes.
The KARNO module is designed to operate on more than 20 fuel types (including natural gas, propane, diesel, hydrogen, and ammonia) with the software automatically detecting fuel changes and adjusting operating parameters in real time to sustain output and efficiency as commercialization expands.
Hyliion (NYSE: HYLN) reported Q3 2025 results and KARNO platform progress on November 11, 2025. The company posted Q3 revenue $0.8M and YTD revenue $2.8M, with a Q3 net loss $13.3M and YTD net loss $44M. Hyliion ended the quarter with $164.7M in cash and investments and expects ~$155M at year-end 2025.
Product milestones: >100 days operational testing with no unplanned hardware downtime, UL linear motor passed first-attempt tests, EPA determined KARNO is not federally regulated, fuel-flexible operation demonstrated, and nearly 500 non-binding LOIs executed. Commercialization is expected in 2026 with full product revenue beginning then.
Hyliion (NYSE American: HYLN) will report its Q3 2025 financial results after market close on Tuesday, November 11, 2025 and will host a conference call and webcast to discuss results, business, and outlook on Wednesday, November 12, 2025.
Conference call time: 10:00 a.m. CT / 11:00 a.m. ET on November 12, 2025. Online registration and live webcast links are provided, and an archived webcast will be available on Hyliion's Investor Relations website.
Hyliion (NYSE American: HYLN) reported that its KARNO™ Power Module completed 100 days of operation on a customer asset without any unplanned hardware-related downtime. The system, operated at Hyliion’s Cincinnati, Ohio facility, logged hundreds of start cycles and substantial runtime while undergoing validation across a wide range of load conditions.
Hyliion continued software refinements and system upgrades during the period; the company says the hardware showed strong robustness and low-maintenance design. Hyliion is preparing the KARNO Power Module for broader commercial deployment in 2026, highlighting additive manufacturing and fuel-agnostic capabilities for data centers, commercial and industrial sites, and microgrids.
Hyliion (NYSE American: HYLN) reported successful internal emissions testing of its KARNO Power Module on pipeline natural gas, achieving NOx <2.5 PPM and low single-digit PPM CO corrected to 15% oxygen — well below the SCAQMD Rule 1110.3 CO limit of 12 PPM, and achieved without aftertreatment or catalyst.
The release notes an EPA determination that KARNO is not regulated as an internal combustion engine, meaning federal approvals are not required and deployments will be governed by local air districts. The company positions the technology for commercial deployments across data centers, industrial sites, defense installations, and transport infrastructure.
Hyliion Holdings (NYSE American: HYLN) has appointed Darrell Preble as the new Vice President of Operations to oversee the manufacturing scale-up of its KARNO™ Power Module technology. Preble, who brings significant experience from senior roles at Cummins and Husky Technologies, will focus on building scalable operations and implementing efficient manufacturing processes.
The KARNO Power Module is a fuel-agnostic power generation solution designed for multiple applications including data centers, commercial facilities, and microgrids. The technology leverages additive manufacturing to deliver highly efficient, low-emissions power generation capabilities.
Hyliion Holdings (NYSE: HYLN) has received a significant regulatory clarification from the EPA regarding its KARNO™ Power Module. The EPA has determined that the innovative power generation technology will not be regulated as an internal combustion engine, instead falling under local air permitting requirements for power generation installations.
The KARNO™ Power Module is a fuel-agnostic linear generator capable of operating on over 20 different fuels, including natural gas, hydrogen, and ammonia. The technology is designed for various applications including data centers, defense installations, and transportation hubs, while meeting stringent emissions requirements including the South Coast Air Quality Management District's Rule 1110.3.
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