INNIO Group (specializing in gas engine technology) and the Net Zero Innovation Hub (a pan-European collaborative) for Data Centers have successfully demonstrated backup power for data centers using 100% hydrogen-fueled gas engines at the 3 MW scale, with technical experts from Microsoft, Google, and Data4 present to witness live testing at INNIO's research facility.

A Landmark Test in Hydrogen Power

The demonstration was conducted at INNIO's research facility and centered on the company's Jenbacher gas engine technology running entirely on hydrogen. During the test, the engine met the demanding response profiles required for mission-critical data center operations. Validation was carried out using various AI load profiles and large, rapid load fluctuations designed to simulate real-world data center conditions.

Technical experts from Microsoft, Google, and Data4 assessed the engine's performance against operational data center requirements and confirmed that hydrogen engines represent a promising pathway for backup and prime power needs for next-generation, high-demand data centers.

INNIO's natural gas engines have long been recognized for their rapid start-up capabilities, strong transient response, and stable performance. According to the companies, these same performance characteristics were successfully demonstrated using hydrogen as the sole fuel source at the 3 MW scale.

How the Hub's Collaborative Model Drove the Demonstration

The test was conducted as part of the Net Zero Innovation Hub for Data Centers' structured, collaborative process for scaling innovation.

The Hub, which is led by Danfoss, Data4, Google, Microsoft, Schneider Electric, and Vertiv, operates by bringing together data center industry leaders to jointly define requirements for new technologies intended for large-scale deployment.

Following a global Request for Information focused on low-carbon backup solutions, hydrogen and clean fuels were selected as a pathway to substitute diesel backup generators.

INNIO's Jenbacher gas engine technology was subsequently chosen for megawatt-scale validation, and the company prepared and executed the test in collaboration with the Hub's technical team.

That team includes industry partners Data4, Google, Microsoft, Schneider Electric, and Vertiv. Alberto Ravagni, CEO of the Net Zero Innovation Hub for Data Centers, said the successful test validates not only a scalable clean backup solution but also the novel collaborative Hub approach to accelerating the adoption of innovative solutions in the data center industry.

The Industry Pressure Driving the Search for Diesel Alternatives

The urgency behind this demonstration is rooted in the rapid growth of AI-driven data center demand. Industry analysts anticipate that behind-the-meter and hybrid energy systems in new-build data centers will increase from 10 to 20 percent in 2025 to 50 to 60 percent by 2030.

That projected surge is placing pressure on data center operators to find scalable, low-carbon alternatives to diesel-based backup systems.

Data center operators are simultaneously prioritizing supply certainty, rapid deployment, and decarbonization, according to the announcement.

Hydrogen-powered behind-the-meter backup power solutions are being positioned as a pathway that could address all three priorities, enabling faster data center deployment alongside grid integration and grid stabilization.

Dr. Olaf Berlien, President and CEO of INNIO Group, stated that data centers are the backbone of the digital economy and that the validation test demonstrates the company's technology delivers the transient performance, resilience, and flexibility data centers require, even when operating on 100% hydrogen.

What Comes Next for Hydrogen Backup Power

INNIO Group and the Net Zero Innovation Hub for Data Centers have indicated plans to continue collaborating on scaling the solution beyond this initial demonstration.

The companies identified a set of critical enablers that will need to be addressed in subsequent phases of development, including fuel availability, infrastructure, storage, permitting, dual-fuel capabilities, and integration within the data center architecture.

The Hub's model is specifically designed to de-risk innovation by removing technical, commercial, regulatory, and financial barriers. Its goal, as stated by the organization, is to support sustainable data center growth while enabling the transition toward a net-zero future.

INNIO Group, which operates the Jenbacher and Waukesha product brands as well as its AI-powered myplant digital platform, positions itself as a provider of flexible, scalable, and resilient energy solutions for applications including data center power infrastructure, distributed power generation, and compression.

The company is headquartered in Jenbach, Austria, while the Net Zero Innovation Hub for Data Centers is based in Fredericia, Denmark.

The demonstration marks a significant technical milestone in efforts to move data center backup power away from diesel generation, though the companies acknowledged that a range of infrastructure and logistical challenges remain to be resolved before hydrogen backup systems can be deployed at a commercial scale across the industry.

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