Interview with Giulio Telleschi, VP Engineering at Enapter

As Vice President of Engineering at Enapter, Giulio Telleschi leads a team of innovators dedicated to advancing green hydrogen technology. With a focus on developing and refining Anion Exchange Membrane (AEM) electrolyzers, Giulio and his team play a critical role in ensuring Enapter’s solutions are reliable, scalable, and ready for global deployment. By combining cutting-edge engineering with data-driven optimization, they continue to push the boundaries of efficiency and modularity in hydrogen production. In this interview, Giulio shares insights into the engineering processes, the advantages of Enapter’s technology, and the company’s commitment to quality and scalability.

Enapter is known for rigorous testing of its electrolyzers. Why is each stack tested twice before delivery, and what key criteria define quality assurance?

At Enapter, we design and manufacture our own stacks, giving us full control over their quality and reliability. By testing our stacks twice—once during production and again before delivery—we can detect early failures and ensure that only high-quality products reach our customers. Our quality assurance process focuses on system safety, including leak detection and compliance with international standards, as well as system reliability through tailored screening procedures. Furthermore, our modular design allows us to fully test the electrolyzers (regardless overall system’s power) before the deployment at Customer site; reducing risks and providing a smooth commissioning.

Enapter offers an extended warranty of up to five years. What enables this level of confidence in product longevity?

Our confidence comes from the extensive data we collect through cloud-based monitoring. By continuously analyzing system performance and usage, we can proactively optimize software and firmware through a Continuous Integration/Continuous Deployment (CI/CD) process. This approach helps us maintain the highest operational standards and support customers with long-term reliability.

What are the main advantages of Enapter’s AEM technology, particularly regarding redundancy and scalability?

One of our core strengths is the modularity of our Multicore systems. Each system consists of multiple stack modules, much like a server-based approach, ensuring maximum redundancy. If one module experiences an issue, the overall system continues running. The combination of redundancy and modularity allows to minimize both downtime and impact of issues. This design makes scaling hydrogen production seamless—from as little as 120 kW to multi-megawatt systems—while maintaining reliability and ease of maintenance. Our systems can run in automatic mode from 3% to 100% production capacity, ensuring efficient operations at any scale.

How does Enapter support companies in scaling their hydrogen projects efficiently?

Enapter’s electrolyzers are designed for quick deployment. Our plug-and-play Multicore solutions come in containerized formats, making integration into existing infrastructure straightforward. With short lead times and a highly modular approach, companies can scale their hydrogen production as demand grows, without the complexities associated with traditional electrolyzers.

What measures are in place to ensure the fail-safety of Enapter’s electrolyzers?

Safety is a top priority for us. Our engineering team works closely with international regulatory bodies, including ISO committees, to align with the highest safety standards. Our systems incorporate fail-safety mechanisms such as automatic fault detection, redundant safety architectures, and high-integrity safety components. Additionally, our products regularly undergo third-party certification by entities like TÜV and Intertek.

How does digitalization enhance the monitoring and maintenance of Enapter’s systems?

Digitalization plays a crucial role in maintaining peak system performance. Our electrolyzers continuously generate operational data, which is stored in the cloud. We have accumulated over 2 million operational hours through cloud-based monitoring, which serves as proof of our systems’ stability. This wealth of data highlights our reliability in real-world applications, setting us apart from competitors. Customers benefit from real-time insights and remote diagnostics, allowing them to optimize their systems proactively. This also enables our support team to assist with troubleshooting and predictive maintenance, improving overall efficiency and reducing unexpected downtimes.

How is AI being used to optimize predictive maintenance and prevent failures?

We leverage AI in combination with our vast dataset from operational electrolyzers to refine predictive maintenance strategies. Our machine learning algorithms analyze usage patterns and potential failure points, enabling us to anticipate maintenance needs before issues arise. Importantly, our expert technicians continuously assess the reliability of these AI-driven insights, ensuring that our customers receive the most effective support and system optimization.

What challenges arise when scaling from small to large industrial applications, and how does Enapter address them?

Scaling up is a straightforward process with our modular Multicore design. By adding more units, we can achieve higher daily hydrogen production rates while maintaining system redundancy. Our containerized plug-and-play approach ensures easy integration into existing energy systems, including hydrogen storage and grids. The clear system boundaries and standardized interfaces simplify deployment, making large-scale hydrogen projects more accessible and efficient.

Thanks for your time, Giulio.