Que: What is the company's long-term vision for the hydrogen economy in India?

Ans: GreenH is primarily an electrolyser manufacturing company. We also develop projects where we sell hydrogen as a molecule against an off-taker agreements. At GreenH, we are employing PEM technology, and in the future, we plan to introduce alkaline and other game-changing technologies such as AEM and SOEC.

Essentially, GreenH aims to position itself as a provider of customised solutions across all four technologies. We are not tied to any specific technology; instead, we can tailor solutions for our customers using any of the four commercial technologies. At GreenH, we want to address the challenge of decarbonisation and the transition of India’s energy systems.

With this goal in mind, we want to provide the best technological solutions for electrolysers currently available in the market. Additionally, we aim to work with all stakeholders to make green hydrogen viable for mass adoption— starting with mobility, Oil & Gas and subsequently hard-to-abate sectors such as steel and cement industries. We are also targeting sectors where hydrogen is already in use, such as refineries and fertilisers, where most of the present-day grey hydrogen is consumed.

We aim to serve all these areas with our state-of-the-art solutions, playing a vital role in the global effort towards deep decarbonisation and energy transition.

Que: Your first one megawatt PEM electrolyser is now installed. What makes PEM electrolyser technology unique compared to other electrolysis methods?

Ans: We have installed a one-megawatt PEM electrolyser with all the necessary systems which essentially is a Hydrogen Refuelling Station (HRS). The HRS is under commissioning now. It will be operational once the hydrogen train arrives, we will integrate the system, and it will become operational. Hopefully, it should be functional in the next few weeks.

So, how is PEM different? We have employed PEM technology because its biggest advantage is that it integrates well with renewable energy. Renewable energy is inherently intermittent, making it difficult for other technologies to function efficiently.

For example, alkaline electrolysers operate with higher load, meaning they start working at around 50 percent capacity. In contrast, PEM electrolysers can start operating at just 10 percent capacity, which is a significant advantage. This means they can maximise the use of solar energy, which is only available for a limited period each day—from sunrise to sunset. PEM electrolysers enable maximum utilisation of solar energy.

Another major advantage is the ramp rates. Compared to alkaline electrolysers, which take longer to reach full operation, PEM technology can ramp up in a matter of minutes.

A third crucial benefit, especially in space-constrained industries like refineries, is that PEM electrolysers have a much smaller footprint than alkaline electrolysers. This makes them a more viable solution in such environments. The operation & maintenance costs of PEM electrolysers are quite lower, when compared with Alkaline electrolysers, thereby, contributing to an optimum levelised cost of hydrogen.

Que: The company aims to decarbonise hard-to-abate sectors. Which industries are showing the most interest in green hydrogen adoption?

Ans: There are two key sectors that we see as low-hanging fruit—industries that are both highly carbon-intensive and difficult to decarbonise. These are steel and cement.

The carbon credit scheme introduced in Europe is likely to impact these industries in India, particularly those exporting steel to Europe. One of the early adopters was Jindal Stainless Steel, which has already set up a plant. We expect others to follow suit.

Steel, in particular, is among the hard-to-abate sectors that will adopt green hydrogen at an early stage. That is our understanding based on current industry trends.

Que: Are there any expansion plans or partnerships in the pipeline for GreenH?

Ans: Yes, of course. We are planning to expand because we see a significant market opportunity in India. Our next big target is launching alkaline technology next year, likely by mid-2026.

Following that, we plan to introduce two game-changing technologies—SOEC (solid oxide electrolyser cell) and AEM (Anion Exchange Membrane)—by 2027. We have a clear investment plan of approximately INR 280 crore, structured in two phases, to establish these new technologies and expand our business in India.

Regarding collaborations, there is nothing currently in the pipeline. At this stage, we are focusing on expanding our own business, capacity, and technological offerings.

Que: How do events like IEW contribute to growth and collaboration within the energy sector?

Ans: From my own experience, I can say that this event is an excellent opportunity for industry professionals like us. When I attended last year in Goa, I saw a lot of attractions and a strong industry presence.

IEW brings together all key stakeholders under one roof—buyers, producers, vendors, consultants—everyone in one place. You get to meet decision-makers, exchange ideas, and gain different perspectives on the industry's direction.

There is a lot of knowledge-sharing at such platforms, making them invaluable for industries like green hydrogen, where there is significant momentum and support from various quarters. It is an excellent opportunity to network with industry peers, competitors, and clients.