Thinking about investing in hydrogen technology, but not sure which Indian electrolyser manufacturer is right for you? You’re not alone. With dozens of new factories and brands popping up, sifting through the options can feel overwhelming. Finding the best supplier isn’t just about cost—it’s about quality, reliability, and future-proofing your green energy ambitions. Working with a top factory means smoother operations, less downtime, and faster innovation. Curious which Indian manufacturers truly stand out?

Let’s dive in and compare the top contenders side-by-side, so you can make a confident, informed choice!

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Top 10 Hydrogen Electrolyzer Manufacturers in India

Product Details:
The company manufactures and supplies hydrogen electrolyzers for green hydrogen production, focusing on both Alkaline and Proton Exchange Membrane (PEM) technologies. Their offerings cater to various capacities suitable for industrial and commercial applications.

Technical Parameters:
– Alkaline and PEM electrolyzer technologies
– Production capacities ranging from small modular units to large-scale
– High efficiency and purity hydrogen output capabilities

Application Scenarios:
– Green hydrogen production for refineries and petrochemical industries
– Hydrogen supply for energy storage and grid balancing
– Decarbonization of industrial processes such as steel manufacturing

Pros:
– Support for multiple electrolyzer technologies (Alkaline and PEM)
– Scalable solutions suitable for diverse industrial needs
– Focus on high efficiency and green hydrogen generation

Cons:
– May require significant capital investment for large-scale deployment
– Operational and maintenance requirements depending on technology type

Top 15 Hydrogen Electrolyzer Manufacturers (By Capacity) | 2025

Best Green hydrogen electrolyzer manufacturers in India

Product Details:
Hydrogen electrolyzers manufactured by leading Indian companies and startups, including advanced alkaline and PEM electrolyzers, used to generate hydrogen from water via electrolysis for green hydrogen production. Products include gigafactory-scale electrolyzers (e.g., Ohmium LotusTM PEM electrolyzer) and capacity-expansion plans by major industry players. Intended for large-scale, renewable energy-powered hydrogen generation.

Technical Parameters:
– Electrolyzer capacities: Initial manufacturing capacities up to 500 MW/year,
– Includes both alkaline and PEM (Proton Exchange Membrane) electrolyzers, with
– Use of 100% renewable energy sources for hydrogen production

Application Scenarios:
– Transportation industry (fuel cells, clean mobility)
– Oil and gas industry (refining, blending)
– Manufacturing and fertilizer industry
– Steel and chemical industry

Pros:
– Increased efficiency in hydrogen production
– Environmentally friendly—supports clean, green hydrogen using renewable power
– Dependable and safe compared to conventional sources of energy
– Supports India’s goal to become a green hydrogen hub and net energy exporter

Cons:
– Market and manufacturing capacity in India still at an initial/early stage
– Current electrolyzer capacity is not sufficient to meet ambitious net zero or

Ohmium launches India’s first green hydrogen electrolyzer gigafactory

Product Details:
Ohmium manufactures Indian-made Proton Exchange Membrane (PEM) hydrogen electrolyzers designed for green hydrogen production, with end-to-end domestic manufacturing in India, initially at a 0.5 GW (500 MW) per year gigafactory in Bengaluru and with plans to scale to 2 GW (2000 MW) per year.

Technical Parameters:
– Proton Exchange Membrane (PEM) technology for hydrogen electrolyzers
– Initial manufacturing capacity: 0.5 GW (500 MW) per year
– Scalable to 2 GW (2000 MW) per year manufacturing capacity
– Modular design for distributed and scalable deployment

Application Scenarios:
– Fertilizer production
– Refinery processing
– Steel production
– Transportation: both methanol blending in conventional vehicles and direct use

Pros:
– Enables production of pollution-free green hydrogen with zero carbon footprint
– Reduces reliance on imported electrolyzers and supports domestic manufacturing
– Modular and scalable design for flexible deployment
– Applicable across diverse industries and supports India’s clean energy

Cons:
– Initial manufacturing capacity limited to 0.5 GW/year until scaled up
– No specific cost, efficiency, or durability data provided in the source

Top Green Hydrogen Electrolyzer Manufacturers in India

Product Details:
Green hydrogen electrolyzers that split water into hydrogen and oxygen using renewable electricity, aiming for sustainable and carbon-free hydrogen production.

Technical Parameters:
– Support for renewable energy sources such as solar, wind, and hydroelectric
– Variety of electrolyzer technologies (PEM, alkaline, etc.)
– System efficiency and purity of hydrogen produced vary depending on technology

Application Scenarios:
– Industrial-scale hydrogen production
– Integration with renewable energy plants for energy storage and grid balancing
– Use in the development of a hydrogen economy and as an alternative fuel
– Potential for smaller-scale or residential energy storage applications

Pros:
– Enables carbon-free hydrogen generation
– Promotes use of renewable energy sources
– Supports India’s strategic goals towards a green hydrogen economy

Cons:
– Cost of hydrogen production via electrolysis can be higher than conventional
– Requires significant energy and infrastructure investment

Hydrogen Technology Company in India | OEM for PEM Electrolysers

Product Details:
GreenH Electrolysis manufactures electrolysers using PEM technology for the production of green hydrogen. Solutions include plug & play electrolysers, hydrogen refueling stations, hydrogen blending solutions, integrated solutions for large capacities, and development of green hydrogen plants. The company operates a 1000 MW electrolyser plant (100 MW operational phase) in India.

Technical Parameters:
– PEM technology-based electrolysers
– State-of-the-art 1000 MW electrolyser manufacturing plant in India (first 100
– R&D pipeline includes AEM & SOEC technology
– Uses renewable electricity (solar, wind, hydropower) to power electrolysis

Application Scenarios:
– Mobility solutions (hydrogen refueling for vehicles, heavy transport)
– Industrial solutions (industries requiring high heat or hydrogen as feedstock,
– Integrated energy storage and grid balancing (power-to-X solutions)
– Development of green hydrogen plants for renewable energy integration

Pros:
– Enables clean, safe, and renewable hydrogen production with zero direct
– Supports deep decarbonization and energy transition agendas
– Facilitates long-term energy storage, balancing intermittent renewables
– Suitable for hard-to-decarbonize sectors and heavy transport

Cons:
– Higher production costs compared to hydrogen from fossil fuels due to reliance
– Significant investment required for infrastructure for large-scale production,
– Renewable electricity can be more expensive and less predictable than

Top 60 Hydrogen Production Companies in India (2025) | ensun

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homiHydrogen – We Build Electrolysers

Product Details:
homiHydrogen manufactures electrolysers based on all major commercially available technologies including AEM, SOE, AMSE, PEM, and AWE, providing solutions from kilowatt to gigawatt scale along with commissioning and maintenance services.

Technical Parameters:
– Offers electrolysers with AEM (Anion Exchange Membrane), SOE (Solid Oxide
– Customised electrolyser solutions ranging from kilowatt (KW) to gigawatt (GW)
– Deep R&D expertise with a collective experience of over 3 million hours

Application Scenarios:
– Hydrogen production using renewable energy sources (green hydrogen generation)
– Industrial-scale hydrogen applications in both domestic (India) and

Pros:
– Only Indian manufacturer offering the full range of all commercially available
– Extensive R&D and installation experience, both in India and overseas
– Ability to provide customised solutions for diverse scale requirements (KW to
– Focused on green hydrogen, leveraging renewable energy sources

The Best Hydrogen Plant Manufacturers Company in India, Top 10 hydrogen …

Product Details:
HGPL offers technology-based manufacturing and supply of Green Hydrogen (Alkaline Water electrolysis) balance of plants, including Gas Lye Separator units and Hydrogen Purification (Deoxo Dryer) Units. The company also provides on-site hydrogen plants (from water and hydrocarbons), EPC/Turnkey services, construction and piping, and manufactures PSA Nitrogen & Oxygen plants, solvent dehydration units, and a variety of pressure vessels and heat exchangers.

Technical Parameters:
– Green Hydrogen generation with up to 99.999% purity.
– Utilizes Alkaline Water Electrolysis with European technology, modular and
– Balance of plant units operated with PLC-based control panel for safe and fully
– ISO 9001:2015 certified manufacturing capabilities for pressure vessels, heat

Application Scenarios:
– Industrial hydrogen supply and purification.
– Renewable energy integration and green hydrogen production.
– Fuel and mobility sectors, including hydrogen fuel cell vehicles.
– On-site hydrogen generation for large-scale industrial and energy applications.

Pros:
– High-purity hydrogen production (up to 99.999%).
– Modular, skid-based, and scalable systems suitable for different capacities and
– Turnkey/EPC services covering full project execution, including design,
– In-house manufacturing certified to international standards (ISO 9001:2015).

Cons:
– High energy consumption required for green hydrogen production, especially via
– Safety concerns due to hydrogen’s volatility and flammability, necessitating

Comparison Table

Frequently Asked Questions (FAQs)

How can I find reliable hydrogen electrolyser manufacturers in India?
Start by searching industry directories, attending renewable energy trade shows, and exploring associations like the Indian Hydrogen Alliance. Online platforms such as IndiaMART or company websites also provide manufacturer details. Request references and case studies to verify reliability.

What should I consider when choosing an electrolyser manufacturer?
Check their technical expertise, production capacity, certification standards, and after-sales support. It’s important to assess their experience with projects similar to yours and ensure they follow internationally recognized safety and quality protocols.

How do I evaluate the product quality of a manufacturer?
Ask for technical specifications, performance data, warranty details, and third-party certifications. Consider arranging a factory visit or virtual tour to inspect manufacturing practices and quality control procedures.

What affects the pricing of hydrogen electrolysers in India?
Pricing varies based on capacity, technology type (PEM or alkaline), customization, and included support services. Bulk orders, local sourcing, and long-term contracts may also influence costs. Always compare multiple quotes before making a decision.

Do Indian manufacturers offer installation and maintenance support?
Many reputable manufacturers provide end-to-end solutions, including installation, commissioning, and ongoing maintenance. Be sure to clarify service inclusions and after-sales support before finalizing your supplier to ensure smooth operation.