EKPO Fuel Cell Technologies NM20 Stack Debuts at IAA 2026

EKPO Fuel Cell Technologies NM20 Stack Debuts at IAA 2026

EKPO Fuel Cell Technologies NM20 is being unveiled as the latest generation of EKPO Fuel Cell Technologies GmbH's NM20 fuel cell stack at IAA Transportation 2026. The joint venture between ElringKlinger and OPmobility has redesigned and standardized the stack architecture to support easier integration into heavy-duty applications and industrial-scale production. The updated platform incorporates insights from ongoing technology projects and the close connection between development and manufacturing. EKPO's latest generation therefore focuses on reducing module size and weight while maintaining a power range suited to demanding transportation and stationary power applications.

Redesigned Architecture Reduces Module Size and Weight

The latest NM20 generation introduces a redesigned architecture intended to simplify integration into heavy-duty systems and support more scalable production. EKPO says the module volume has been reduced by approximately 20%, while the weight of the fully assembled module has decreased by 39 kg to 178 kg. The Cell Row Assembly, or CRA, is approximately 25% lighter as well. These changes are aimed at improving the packaging and weight characteristics of the fuel cell system while reflecting development lessons gained from technology projects and the integration of engineering activities with production processes.

NM20 Platform Offers More Than 400 kW

The NM20 family covers multiple output configurations for different heavy-duty and power-generation requirements. Its range includes a 323-cell single-stack module capable of delivering more than 200 kW, while the Max variant provides output above 300 kW. A 646-cell twin-stack module produces more than 400 kW. The stack is engineered for a service life of 25,000 operating hours and achieves efficiency ranging from 56% to 69%, depending on the operating range. This configuration strategy gives the platform a broad operating envelope for applications where sustained power, durability, and integration flexibility are important technical requirements.

Applications Extend Beyond Heavy-Duty Road Transport

The NM20 platform is designed for several demanding applications rather than being limited to road transportation. EKPO identifies heavy-duty road vehicles, rail transportation, and marine transportation among the intended areas of use. The technology is also designed for stationary power supply and backup power systems. This broad application scope places the stack architecture across both mobile and stationary power requirements, with the standardized design intended to support integration into different system environments. The combination of output options, operating life, and efficiency characteristics is central to the platform's positioning across these applications.

Lightweight Module Delivers More Than 200 kW

Alongside the latest NM20 generation, EKPO Fuel Cell Technologies GmbH is showcasing a lightweight fuel cell stack module that delivers more than 200 kW while weighing 38 kg. The module has a power density exceeding 5 kW/kg, highlighting the company's focus on reducing mass while maintaining high power output. This lightweight demonstrator complements the broader NM20 platform by illustrating another approach to improving fuel cell system packaging and power density. Together, the showcased technologies emphasize EKPO's development focus on fuel cell solutions for applications where power, weight, durability, and integration requirements must be balanced.

Industry Impact & Outlook

The latest NM20 generation could strengthen EKPO Fuel Cell Technologies GmbH's position in fuel cell applications where reduced system mass, compact packaging, long operating life, and high power output are important. The 200 kW-plus single-stack configuration, higher-output variants, and twin-stack architecture provide options across heavy-duty transportation and stationary power uses, while the standardized design may simplify integration and production scaling. The most relevant next steps will depend on how the technology progresses through development projects and into application programs. Its potential significance lies in combining substantial power capability with lower module weight and volume for demanding operating environments.

Frequently Asked Questions

What is the latest EKPO NM20 fuel cell stack designed for?
The latest NM20 generation is designed for heavy-duty road, rail, and marine transportation, as well as stationary power supply and backup power systems. Its standardized architecture is intended to simplify integration into demanding applications and support industrial-scale production. The platform includes several configurations, ranging from a 323-cell single-stack module delivering more than 200 kW to a 646-cell twin-stack module producing more than 400 kW. EKPO also specifies a service life of 25,000 operating hours and efficiency between 56% and 69%, depending on the operating range.

How much lighter is the new NM20 module?
The fully assembled NM20 module has been reduced in weight by 39 kg, bringing its weight to 178 kg, while its overall volume has decreased by approximately 20%. The Cell Row Assembly is also approximately 25% lighter. These reductions accompany the redesigned and standardized architecture introduced for the latest generation. EKPO is additionally displaying a separate lightweight fuel cell stack module that delivers more than 200 kW from a 38 kg module and achieves a power density of more than 5 kW/kg, demonstrating another emphasis on reducing mass while maintaining substantial power output.