- L&T GreenTech
- Our Offerings
- Electrolysers
- Manufacturing & Testing
L&T Electrolysers has commenced commercial-scale manufacturing of alkaline electrolysers at its state-of-the-art facility in Hazira, Gujarat, India. Engineered to meet stringent European and international quality, safety, and industrial standards, the facility is designed to support gigawatt-scale green hydrogen projects for global markets.
Located within the A. M. Naik Heavy Engineering Complex, Hazira, the manufacturing facility reflects L&T’s globally recognised engineering excellence and execution capability.
The manufacturing ecosystem is designed for precision, efficiency, and scalability, delivering consistent, repeatable, and bankable outcomes. End-to-end in-house capabilities span fabrication, precision machining, automated component manufacturing, electrolyser cell and stack assembly, system integration, and full-capacity testing.
High levels of automation, robotics, and digitalisation ensure uniform quality, high throughput, and long-term reliability.
At L&T Electrolysers, we understand that rigorous testing and validation are fundamental to delivering reliable electrolyser performance in real operating environments. To ensure this, every product undergoes a structured testing approach—from development through full-scale deployment.
Our testing journey begins at the laboratory scale, where materials, electrochemical behaviour, and design concepts are validated to establish a strong technical foundation.
The next stage involves short-stack testing, enabling performance optimisation, durability assessment, and operating envelope validation under controlled conditions before scaling.
Our state-of-the-art Electrolyser Stack Testing Facility forms a critical pillar of our quality assurance, product validation, and technology development framework. The facility is designed to rigorously evaluate electrolyser stacks under controlled and real-world operating conditions, ensuring compliance with stringent performance, safety, and reliability standards prior to deployment.
The testing facility is equipped with advanced hydrotest and leak test stations to verify mechanical integrity and pressure containment across operating envelopes. A dedicated cathode activation area ensures precise conditioning and stabilisation of electrochemical performance. The centralised control room allows continuous monitoring, diagnostics, and performance analytics during the testing process. A specialised performance test area enables comprehensive validation of key parameters of the hydrogen production. Supporting utility systems are engineered to provide reliable power, cooling water, chilled water, nitrogen, instrument air and safety infrastructure, enabling repeatable and scalable testing operations.
Through this end-to-end testing capability, we ensure that every electrolyser stack manufactured here meets our exacting standards for performance, safety, and longevity.
The final and most critical phase is full-scale electrolyser stack testing, conducted in our state-of-the-art in-house testing facility, simulating real plant operating conditions prior to customer delivery.
Each stack undergoes hydrotest and leak testing to verify mechanical integrity and pressure containment, followed by cathode activation and conditioning to ensure stable, repeatable hydrogen production.
Testing is continuously supervised from a centralised control room, providing real-time diagnostics, performance analytics, and complete traceability.