GreenH Electrolysis positions itself as a full-stack green hydrogen solutions provider. How does this differentiate the company from a pure electrolyser manufacturer and what market gap is it specifically trying to address?

GreenH was created to address a clear gap in India’s hydrogen ecosystem — the lack of end-to-end, execution-ready green hydrogen solutions. While pure electrolyser manufacturers typically stop at supplying stacks or skids, GreenH integrates electrolyser manufacturing, system engineering, EPC, commissioning, and long-term O&M under one roof. This full-stack approach is critical in India, where customers are often new to hydrogen and need performance-guaranteed solutions rather than individual components. By owning the system integration and lifecycle performance, GreenH reduces project risk, accelerates deployment timelines, and enables customers to move from pilot to scale.

GreenH has set up state-of-the-art 1,000 MW electrolyser plant in Reliance MET Industrial Park, Jhajjar. What is the current and planned manufacturing capacity of this facility over the next 2–3 years?

GreenH’s Jhajjar facility has an initial manufacturing capacity of 100 MW per year, designed with a modular layout that allows rapid scaling to gigawatt-scale production as market demand accelerates. Over the next 2–3 years, capacity expansion will be market-linked, ensuring capital discipline while remaining ready to support India’s National Green Hydrogen Mission. Importantly, the facility is future-proofed to accommodate next-generation technologies, including AEM and SOEC, aligned with ongoing R&D within the H2B2 Electrolysis Technologies group.

What performance benchmarks has GreenH’s 1 MW PEM electrolyser achieved in real-world operating conditions? How critical is indigenous manufacturing for meeting India’s green hydrogen cost targets?

Indigenous manufacturing is absolutely central to meeting India’s green hydrogen cost targets. Local production reduces import dependency, logistics costs, and currency exposure, while enabling faster customization for Indian operating conditions. Over time, localisation also unlocks cost reduction through supply chain development, learning curves, and service efficiency, all of which are essential to achieving globally competitive hydrogen costs.

H2B2, your parent company, has been among the early movers in executing green hydrogen projects globally. What are the key strategic and execution learnings that the Indian operations are drawing from H2B2’s experience across the US, Europe, Latin America, Asia, and Asia-Pacific?  

H2B2’s global project experience, with over 19 installations worldwide, has provided invaluable learnings in system design, project execution, and long-term operability. Moreover, all this knowledge is brought forward from EPC and O&M activities, to design and engineering early stages, on a virtuoso cycle. Indian operations benefit directly from proven approaches to stack configuration, balance-of-plant optimisation, safety engineering, and performance monitoring across diverse regulatory and climatic conditions.

How competitive are GreenH’s PEM electrolysers in terms of efficiency, durability, and cost compared to imported systems?

GreenH’s PEM electrolysers are globally competitive on safety, efficiency, reliability and durability, with performance benchmarks comparable to established international OEMs. From a cost perspective, local manufacturing provides a clear advantage by reducing import duties, logistics costs, and lead times. Equally important is lifecycle economics — proximity of service teams, faster spares availability, and integrated O&M significantly lower total cost of ownership compared to imported systems.

What were the key technical and commercial challenges in setting up India-based PEM electrolyser manufacturing?

From a technical standpoint, achieving consistent quality in precision manufacturing, especially for stacks and critical balance-of-plant components, required close supplier development and rigorous qualification processes. Commercially, the challenge was balancing early-stage market volumes with capital-intensive manufacturing. GreenH addressed this by adopting a scalable, modular factory design and leveraging H2B2’s proven technology to accelerate time to market while managing risk.

GreenH is building hydrogen production and refuelling station for India’s first hydrogen-powered train. How does this collaboration help Indian Railways reduce emissions, fuel costs, and operational dependence on diesel?

The hydrogen production and refuelling station enables Indian Railways to replace diesel with a zero-emission fuel, directly reducing CO? emissions and local air pollutants. Over time, green hydrogen also offers greater price stability compared to diesel, which is exposed to global fuel price volatility. Additionally, domestically produced hydrogen strengthens India’s energy security by reducing reliance on imported fossil fuels.

What outcomes have emerged so far from the hydrogen production and refuelling station being built by GreenH for Indian Railways? How scalable is this hydrogen refuelling model for wider rail, bus, or heavy-duty mobility deployment?

Indian Railways project is currently under commissioning and expected to be operational soon, serving as a critical real-world validation platform for hydrogen mobility in India. The modular design of the production and refuelling infrastructure makes it highly scalable, not only for rail applications but also for buses, trucks, and other heavy-duty mobility segments, where centralized hydrogen hubs can serve multiple fleets.

From GreenH’s perspective, how does working with Indian Railways accelerate technology validation and market adoption for indigenous PEM electrolysers?

Indian Railways provides a high-duty, mission-critical operating environment, which is ideal for validating electrolyser performance, reliability, and safety at scale. Successful deployment builds confidence among other public and private sector users, and accelerates broader market adoption of indigenous electrolysis technology.

How GreenH does customizes electrolyser and refuelling solutions for different mobility use cases such as trains, buses, and trucks?

GreenH customizes solutions based on duty cycle, refuelling pressure, footprint constraints, and redundancy requirements. While the core electrolyser technology remains standardised, balance-of-plant, storage, and dispensing systems are tailored to meet the specific operational needs of each mobility segment.

Beyond manufacturing, GreenH is offering EPC and O&M services. How important is systems integration to successful hydrogen project deployment? What capabilities has GreenH developed to ensure high uptime and reliability of hydrogen plants?

Systems integration is fundamental to hydrogen projects success. Electrolysers (or any other piece of equipment) do not operate in isolation — performance depends on how well power electronics, water treatment, compression, storage, and controls are integrated. GreenH has developed strong EPC and O&M capabilities to ensure high uptime, safe operation, and predictable performance, which are critical for customer confidence and project bankability. Products and services are tailor-made for each and every hydrogen project, to optimize its utilization on this nascent market.

How is GreenH addressing key PEM challenges such as catalyst cost, stack lifetime, and water quality requirements? Is the company investing in R&D to move beyond PEM such as AEM or next-generation electrolysis technologies?

Beyond PEM, the GreenH and H2B2 group is actively investing in AEM and SOEC technologies to continue fostering technology development, positioning GreenH to adopt the most suitable electrolysis technology as use cases and economics evolve.

Where does GreenH aim to be in the green hydrogen value chain by 2030? Any expansion plans beyond India and does the company see export opportunities for Indian-made electrolysers?

By 2030, GreenH aims to be a leading integrated green hydrogen solutions provider, spanning manufacturing, EPC, O&M, and hydrogen infrastructure for industrial and mobility applications. India is expected to become a global manufacturing and export hub, and GreenH sees strong opportunities for exporting Indian-made electrolysers and derivatives such as green methanol, aligned with global decarbonisation demand.