Hyliion and MMR Power Solutions Partner to Advance Deployment of KARNO Power Modules for Stationary Applications
Hyliion Holdings Corp. (NYSE American: HYLN), an innovator in sustainable electricity-producing technologies, has announced a major step forward in the commercialization of its flagship power generation solution. The company revealed it has entered into a non-binding Letter of Intent (LOI) with MMR Power Solutions, a division of MMR Group. This LOI outlines an initial plan for MMR to purchase and deploy three of Hyliion’s KARNO™ Power Modules, bringing up to 600 kilowatts (kW) of clean, stationary power generation to its industrial and commercial customers.
The proposed deployment of these units is expected to commence in the second half of 2026, setting the stage for Hyliion’s entrance into the market for stationary distributed energy solutions. This partnership marks a critical milestone in Hyliion’s journey from technology development to commercial deployment and demonstrates rising demand across multiple sectors for scalable, efficient, and lower-emission power systems.
A Partnership Grounded in Energy Innovation
MMR Group, the parent company of MMR Power Solutions, is a global leader in the engineering, construction, and integration of custom electrical and instrumentation solutions. With over 5,000 employees and more than $6 billion in successfully delivered projects, MMR operates across a broad spectrum of industrial sectors, including oil and gas, utilities, data centers, and complex manufacturing environments.
The LOI signifies a strong vote of confidence in Hyliion’s KARNO technology. Through this collaboration, MMR Power Solutions intends to incorporate the advanced power modules into select on-site energy projects where reliability, fuel flexibility, and emissions performance are paramount. This arrangement is expected to help MMR’s commercial and industrial clients meet their operational and sustainability targets, particularly in remote or distributed locations where conventional power grid access may be limited or unreliable.
KARNO™: A Next-Generation Linear Generator
At the heart of this agreement lies Hyliion’s groundbreaking KARNO Power Module—a linear generator system that represents a departure from conventional combustion-based power generation. Instead of relying on internal combustion engines or turbines, the KARNO system uses a sealed, linear heat engine architecture to produce electricity from a variety of fuel sources, including natural gas, hydrogen, biogas, and even industrial waste heat.
Designed for long-duration power needs, KARNO modules are expected to deliver significant advantages in several key performance areas:
- High Fuel Flexibility: Capable of running on more than 20 different fuels, including hydrogen and renewable gases.
- Lower Emissions: By eliminating internal combustion and enabling precise thermal management, KARNO reduces NOx and other pollutants.
- Enhanced Efficiency: The system achieves higher thermal-to-electric efficiency compared to legacy generator systems.
- Extended Uptime: Fewer moving parts and a sealed architecture lead to less maintenance and increased reliability in remote or demanding environments.
These features make the KARNO system especially well-suited for applications such as backup power, microgrids, off-grid operations, or any location where grid access is constrained and emissions reduction is a priority.
Strategic Value for MMR Power Solutions
MMR Power Solutions will evaluate the KARNO Power Modules for use across its growing portfolio of stationary power projects. These projects support a wide range of customer needs—from maintaining 24/7 operations at remote facilities to integrating power systems into broader energy management and resiliency strategies.
According to Brian Beaty, Director of Operations at MMR Power Solutions, the agreement represents a forward-looking opportunity:
“At MMR, our customers rely on us to deliver forward-looking power solutions that meet operational needs without compromising on reliability or efficiency. Hyliion’s KARNO technology is an exciting opportunity to introduce cleaner generation with the added benefit of fuel flexibility. We look forward to evaluating its performance and further integration into our portfolio of energy systems.”
Beyond its potential as a stand-alone power generation asset, the KARNO Power Module also has the capability to serve in combined heat and power (CHP) configurations. CHP, also known as cogeneration, involves capturing the thermal energy generated during electricity production and repurposing it for heating, industrial processes, or additional electricity generation—greatly improving overall system efficiency.
KARNO’s sealed and modular heat engine architecture is especially conducive to CHP integration. This advantage opens new doors for MMR to deploy highly efficient, localized energy systems that deliver both electricity and thermal energy in tandem—ideal for applications such as manufacturing plants, food processing facilities, and large campuses where heat and power demands overlap.
A Turning Point for Hyliion’s Commercialization Strategy
The LOI with MMR Power Solutions is part of Hyliion’s broader commercialization roadmap for the KARNO system. Following its 2023 acquisition of the KARNO intellectual property and development team from General Electric, Hyliion has made steady progress advancing the technology toward real-world deployments.
Hyliion Founder and CEO Thomas Healy emphasized the significance of the LOI as a signal of market readiness and industrial confidence in the technology:
“The LOI with MMR reflects growing industry demand for power solutions that combine efficiency with high reliability. We’re excited to partner with a company that deeply understands on-site power generation and is focused on delivering dependable, lower-emission power to its customers.”
Hyliion’s near-term focus includes completing prototype testing, obtaining necessary certifications, and scaling manufacturing capabilities to support commercial delivery in 2026 and beyond. The initial deployment with MMR Power Solutions is anticipated to be a key validation step—providing essential performance data and customer feedback to inform future deployments, refinements, and broader adoption.
A Glimpse at What’s Ahead
While the current LOI is non-binding and remains subject to the negotiation and execution of a definitive purchase agreement, it reflects serious intent from both parties to collaborate in the deployment and evaluation of this new power generation platform. The agreement may also pave the way for expanded use cases, potentially leading to larger-scale purchases or integration of KARNO modules into MMR’s standard energy solutions offering.
The growing importance of decentralized, reliable, and low-emission power systems—especially in critical infrastructure, industrial, and remote operations—has created fertile ground for innovation. As businesses and governments alike pursue decarbonization strategies, scalable technologies like the KARNO Power Module could play a pivotal role in meeting energy reliability and emissions goals.
