Water Electrolysis Machine Market to Grow to USD 23.4 Billion by 2035, CAGR 7.2

The global water electrolysis machine market is set to experience significant expansion from 2025 to 2035, fueled by the rising demand for clean hydrogen and the accelerating transition to sustainable energy systems. Valued at USD 11.7 billion in 2025, the market is projected to reach approximately USD 23.4 billion by 2035, growing at a steady CAGR of 7.2% over the forecast period.

The global water electrolysis machine market is witnessing significant momentum, driven by the urgent need for cleaner energy alternatives, decarbonization efforts across industries, and the rapid expansion of green hydrogen infrastructure. Water electrolysis machines, which use electricity to split water into hydrogen and oxygen, are at the forefront of sustainable hydrogen production. As nations aim for net-zero carbon goals and reduce their reliance on fossil fuels, the deployment of electrolysis technologies has taken center stage.

Unlock Key Market Trends: Get Your Sample Report!

Key Industry Highlights

Growing Emphasis on Green Hydrogen: With countries like Germany, Japan, South Korea, and India prioritizing hydrogen roadmaps, green hydrogen is gaining traction as a viable solution for decarbonizing sectors like steel, chemicals, and heavy transportation.
Technological Advancements: Ongoing innovations in proton exchange membrane (PEM), alkaline, and solid oxide electrolyzers are improving efficiency, scalability, and cost-competitiveness.
Public and Private Investments: Substantial investments from governments (e.g., the European Union’s Hydrogen Strategy) and private players (e.g., Siemens Energy, Nel ASA, Plug Power) are providing the capital and confidence required for market expansion.
Integration with Renewable Energy: Coupling water electrolysis machines with solar and wind power is being increasingly adopted, allowing large-scale, clean hydrogen production and grid balancing capabilities.

Collaboration Between Small Market Players to Strengthen Product Portfolio

The competitive landscape is witnessing an uptick in partnerships, joint ventures, and strategic alliances among smaller and emerging market participants. These collaborations are instrumental in accelerating product development, improving technology integration, and enhancing value propositions.

Start-ups and SMEs are increasingly collaborating with research institutions, renewable energy providers, and industrial hydrogen users to develop customized, modular electrolysis solutions. By pooling R&D capabilities and accessing wider distribution networks, these players are able to compete more effectively with industry giants. For instance, several regional start-ups are entering agreements to co-develop containerized electrolysis systems tailored for on-site hydrogen generation, especially for remote locations and microgrids.

Additionally, technology sharing and co-investment models are being utilized to reduce capital burdens and speed up time-to-market for novel electrolysis units. This trend not only promotes innovation but also diversifies the product portfolios of smaller players, allowing them to meet the specific demands of sectors like pharmaceuticals, semiconductors, and mobility solutions.

Market Concentration

While the market remains moderately fragmented, a few key players hold significant shares owing to their established presence, extensive patent portfolios, and vertically integrated hydrogen solutions. Companies like ITM Power, Nel Hydrogen, Siemens Energy, Plug Power, and Cummins Inc. are dominant contributors, with consistent investments in manufacturing capacity expansion, electrolyzer scaling, and international hydrogen partnerships.

However, barriers to entry are gradually reducing due to technological democratization and supportive policy environments. As a result, newer players, including local and regional manufacturers, are entering the market with cost-effective and application-specific offerings, gradually shifting the balance towards a more competitive ecosystem.

Country-wise Insights

Germany: Germany is a key player in Europe’s hydrogen economy, with multiple giga-projects for green hydrogen production underway. The country is also home to prominent manufacturers and has implemented strong hydrogen policies under its “National Hydrogen Strategy.”
India: India is emerging as a strategic market for water electrolysis machines, driven by government initiatives like the National Green Hydrogen Mission. The abundance of solar energy in the country is enabling cost-effective electrolysis projects, particularly in industrial belts.
South Korea: South Korea’s roadmap to become a global hydrogen economy by 2040 includes ambitious targets for fuel cell vehicles, hydrogen refueling stations, and localized electrolysis infrastructure. Domestic companies are investing heavily in R&D to enhance electrolyzer output.
United States: The U.S. market is growing rapidly due to initiatives like the Bipartisan Infrastructure Law and the Inflation Reduction Act, which allocate billions for clean hydrogen development. Large-scale renewable hydrogen projects are underway in California, Texas, and the Midwest.

Competition Outlook

The global water electrolysis machine market features a mix of multinational corporations and agile startups competing across various technology segments, including: