Hyliion Strengthens Leadership Team with Appointment of Darrell Preble as Vice President of Operations to Scale KARNO™ Power Module Manufacturing
Hyliion Holdings Corp. (NYSE American: HYLN), a company dedicated to advancing sustainable electricity-producing technologies, announced today the appointment of Darrell Preble as Vice President of Operations. This strategic leadership move underscores Hyliion’s commitment to accelerating the commercialization of its breakthrough KARNO™ Power Modules and preparing the company for efficient, scalable growth in the energy sector.
Driving Operational Growth at a Critical Stage
As Vice President of Operations, Preble will take on the pivotal responsibility of scaling Hyliion’s manufacturing infrastructure. The company is rapidly moving from development and pilot testing of its KARNO modules into a stage that requires large-scale production to meet growing demand across industries. Preble’s role will involve ensuring that Hyliion’s manufacturing processes are not only capable of delivering volume but are also cost-efficient, flexible, and resilient in the face of global supply chain challenges.
The move comes at a time when energy innovation and decarbonization are at the forefront of industrial strategy. The KARNO Power Module is designed to provide highly efficient, fuel-flexible, and low-emissions power solutions for diverse applications, making manufacturing scale-up an essential part of Hyliion’s mission.
A Leader with Proven Experience
Preble brings with him a wealth of experience in the energy and technology manufacturing sectors. His career includes senior leadership roles at Cummins, a global leader in engines and power generation systems, and Husky Technologies, a company known for its advanced manufacturing solutions. At both organizations, Preble oversaw complex production environments, built scalable operational systems, and spearheaded the development of resilient supply chains to support global commercialization efforts.
These experiences directly align with the challenges Hyliion faces as it transitions from being a development-focused innovator into a commercially scaled provider of next-generation energy technology. Preble’s operational expertise and history of implementing cost-effective, quality-focused processes will be central to ensuring Hyliion’s success.
CEO Perspective: Building Momentum for Market Readiness
Thomas Healy, Founder and CEO of Hyliion, emphasized the importance of strengthening the company’s operations as it prepares for commercialization.
“As we prepare to go to market, strengthening our operational capabilities is critical,” said Healy. “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. His background in building and leading large-scale production systems gives us the confidence that we can deliver not only on innovation but also on execution.”
Healy noted that Hyliion is entering a defining moment in its evolution. While technological innovation has always been a core strength of the company, operational excellence is equally essential in order to deliver value to customers and maintain competitiveness in a rapidly shifting energy landscape.
The KARNO™ Power Module: A Versatile Solution for the Future
The KARNO Power Module is Hyliion’s flagship innovation, designed to change the way electricity is produced and used across sectors. Developed with the support of additive manufacturing, the module can be produced with high precision and flexibility, allowing Hyliion to refine designs quickly and efficiently as demand grows.
One of the key differentiators of the KARNO system is its fuel-agnostic design. The module can operate on more than 20 different fuel types—including hydrogen, natural gas, propane, ammonia, and other renewable fuels—making it uniquely versatile in addressing the diverse needs of global customers. This flexibility ensures that KARNO can deliver reliable power while supporting the broader transition to low- and zero-carbon energy sources.
In addition, the KARNO Power Module is engineered to provide highly efficient, near-zero emissions power, positioning it as a competitive alternative for traditional generators and engines. Target applications include data centers, which require constant, reliable power with minimal emissions; commercial and industrial facilities seeking resilient, efficient backup systems; and microgrids designed to support local, sustainable energy independence.
Preble’s Vision for Hyliion’s Future
In his first remarks as Vice President of Operations, Preble expressed excitement about joining Hyliion at such a transformative moment.
“I’m thrilled to join Hyliion at this pivotal time,” said Preble. “The KARNO Power Module represents a new way to produce and utilize electricity. I look forward to building the operational foundation that will help Hyliion to scale, deliver value to our customers, and accelerate the adoption of this groundbreaking technology.”
Preble noted that his primary focus will be to align manufacturing processes with Hyliion’s strategic vision. This means ensuring cost optimization, streamlining production, strengthening supplier relationships, and implementing best practices that can support both rapid growth and long-term resilience.
A Step Toward Broader Energy Transformation
Hyliion’s decision to expand its leadership team with a focus on operations reflects broader trends across the energy industry. As global stakeholders push for cleaner and more resilient power solutions, companies like Hyliion are working not only to innovate technologically but also to ensure that innovations are accessible and deployable at scale.
The addition of Darrell Preble to the team signals Hyliion’s readiness to make that transition. By pairing its cutting-edge KARNO technology with robust manufacturing capabilities, the company is setting the stage for meaningful contributions to energy transformation worldwide.
