Heavy Duty Trucking Logo
MenuMENU
SearchSEARCH

Hyliion Unveils Fuel-Agnostic Hypertruck

Hyliion's new Hypertruck Karno demonstration vehicle can use a variety of fuels to extend battery-electric range.

May 8, 2023
Hyliion Unveils Fuel-Agnostic Hypertruck

The Hyliion Karno generator is capable of operating on over 20 different fuels, including hydrogen, natural gas, propane, ammonia, and conventional fuels, according to Thomas Healy, founder and CEO of the company.

Photo: Jack Roberts

2 min to read


Hyliion unveiled its Hypertruck Karno demonstration vehicle at the Advanced Clean Transportation Expo in Anaheim, California.

According to Thomas Healy, founder and CEO of Hyliion, the semi-truck employs a first-of-its-kind electric range extender powertrain that can be refueled with both hydrogen and natural gas.

Ad Loading...

Healy said the Karno generator is expected to show an improvement in fuel efficiency and a significantly lower emissions profile versus conventional generators. Additionally, he said that the next-generation Karno generator can operate on more than 20 different fuel sources, including hydrogen, and initial testing indicates it’s expected to comply with current and foreseeable emissions standards.

“At Hyliion, we are delivering practical solutions that cater to fleets' current needs while continually developing cutting-edge products that seize the opportunities of tomorrow,” Healy added. “While our focus remains on the 2023 production launch of the Hypertruck ERX, a renewable natural gas electric range extender powertrain, we are also developing the Hypertruck Karno as part of our transition to offer fleets fuel flexibility.”

Hyliion acquired the Karno generator technology from GE Additive last August to provide a next-generation generator for integration into its powertrain platform and to be used for distributed grid stationary power applications. The Karno technology is a linear motor heat generator that leverages advanced 3D metal printed components and proprietary flameless oxidation technology to produce clean electricity.

Ad Loading...

Healy said the Hypertruck Karno vehicle showcased at ACT Expo is intended for product demonstration at the event and will be subsequently used for continued development, testing, and validation.

More Equipment

Khaki-colored autonomous Peterbilt truck hauling triple trailers loaded with frac sand for Atlas Energy Solutions in the Permian Basin.
Equipmentby News/Media ReleaseJuly 31, 2026

Atlas Expands Kodiak Driverless Truck Fleet in Permian Basin

Atlas Energy Solutions is expanding autonomous frac sand hauling in the Permian Basin with a second load-out location and plans for 100 driverless trucks by mid-2027.

Read More →
Equipmentby Jim ParkJuly 30, 2026

Putting Mack’s Command Steer to the Test

A test drive of Mack’s Command Steer active steering system evaluates how it can make truck driving easier and less tiring.

Read More →
Photo of Volvo VNL truck on highway with illustration of software over the air updates
Equipmentby News/Media ReleaseJuly 27, 2026

Mack, Volvo Expand DEF Derate Software Updates

The updated software gives Mack and Volvo truck owners more time to address DEF-related issues before the engine derates or the vehicle goes into reduced-speed inducement, following new EPA guidance.

Read More →
Ad Loading...
Graphic showing Rush and MCT logos with blue tractor pulling white refrigerated trailer in the background
Maintenanceby News/Media ReleaseJuly 24, 2026

Rush, MCT Team Up to Grow Refrigeration Service Network

The joint venture will operate MCT's network of Carrier Transicold dealerships and mobile service locations, with the companies promising greater service capacity and uptime for refrigerated fleets.

Read More →
EquipmentJuly 23, 2026

Cummins Adjusts 2027 Engine Rollout After EPA Proposal

The engine maker will gradually introduce its new Model Year 2027 diesel engines while continuing to offer current models during the transition, citing the EPA's proposed emissions rule changes.

Read More →
Blue International heavy-duty truck with Aurora driverless truck software coming head-on on an interstate highway
Equipmentby Deborah LockridgeJuly 22, 2026

Aurora Rolls Out Next Generation of Driverless Trucks for Commercial Freight

Aurora's latest autonomous trucks it's rolling out with International feature lower-cost hardware designed for a million miles as the company expands commercial driverless freight operations across the U.S. Sun Belt.

Read More →
Ad Loading...
YouTube thumbnail with Ingrid Brown, red Peterbilt truck behind her, and the words Classic Custom: Peterbilt 589: Heavy Duty Trucking Spotlight
Equipmentby Wayne ParhamJuly 20, 2026

Peterbilt 589 Spotlight: A Close Look at a Custom Working Truck [Video]

There's more to this customized Peterbilt Model 589 and Great Dane refrigerated trailer than chrome and stainless (although there's plenty of that too!) A veteran driver explains the design choices and practical features behind this working truck.

Read More →
Continental ContiTread HDL 5 EP
Equipmentby News/Media ReleaseJuly 16, 2026

Continental Expands Retread Lineup With New ContiTread HDL 5 EP

New long-haul drive retread is designed to improve fuel efficiency, extend tread life, and lower fleets' cost per mile.

Read More →
Four men in suits on the National Mall with giant video screen showing capitol building in the background
Equipmentby Deborah LockridgeJuly 10, 2026

EPA Proposal Could Ease 2027 Truck Costs and Buying Uncertainty

The proposal doesn't change the tougher NOx standard, but it would revise key implementation requirements that manufacturers say have driven up costs and complicated fleet purchasing decisions.

Read More →
Ad Loading...
Illustration showing Paccar MX engine with sketch illustration of DEF fill tank in background
Equipmentby Deborah LockridgeJuly 7, 2026

Cummins, Paccar Ease DEF Derates After EPA Guidance

Updated diesel engine software gives truck operators more time to address emissions-system issues while staying compliant with EPA emissions standards.

Read More →