The World Hydrogen Summit & Exhibition 2026 in Rotterdam: the must-attend event to accelerate the green hydrogen revolution
As the world accelerates its energy transition to limit global warming to 1.5°C, green hydrogen is emerging as a key solution for decarbonizing hard-to-electrify sectors such as heavy industry, maritime transport, and aviation. Against this backdrop, the World Hydrogen Summit & Exhibition, to be held in Rotterdam from May 19 to 21, 2026, is positioning itself as the global gathering where major industrial decisions, strategic partnerships, and technological breakthroughs necessary to realize this ambition will be made. Organized by the Sustainable Energy Council and RX Global, in collaboration with Dutch authorities and the Port of Rotterdam, the event brings together each year the most influential players in the sector, from policymakers to innovators and investors. With more than 10,000 experts expected, the 2026 edition promises to be a turning point, notably with the introduction of two new dedicated zones: CCUS World and Energy Storage World, which further expand the possibilities for a decarbonized economy.
Hydrogen, often described as the "blue blood" of the energy transition, is not a miracle solution, but its potential is immense. Unlike fossil fuels, green hydrogen—produced through electrolysis using renewable energy—does not emit CO₂ during use. Yet its production remains largely carbon-intensive today, as it is primarily derived from natural gas (gray hydrogen or blue hydrogen with CO₂ capture). According to the latest projections from the International Energy Agency (IEA), achieving climate goals will require green hydrogen’s share of global production to rise from less than 1% today to nearly 20% by 2030. This represents a colossal challenge, both technologically and economically. Production costs must be halved to become competitive with fossil fuels, and transport and storage infrastructure must be massively developed. It is precisely these challenges that the World Hydrogen Summit addresses, providing a unique platform to assess progress and identify bottlenecks to overcome.
The 2026 edition marks a major evolution with the addition of two new thematic zones: CCUS World and Energy Storage World. The first, dedicated to carbon capture, utilization, and storage (CCUS), addresses a critical need: enabling blue hydrogen to play a transitional role while reducing its carbon footprint. CCUS technologies, though controversial due to their cost and limited efficiency, could mature through the massive investments announced in the coming years. In the United States, for example, the Inflation Reduction Act allocates $3.5 billion to regional CCUS hubs, while the European Union has launched large-scale infrastructure development calls for projects. The second zone, Energy Storage World, highlights another pillar of the transition: energy storage. Hydrogen, with its ability to store large amounts of energy over long periods, could become an indispensable complement to batteries for balancing power grids, especially in regions where renewables are intermittent. Pilot projects are multiplying, such as in Australia, where wind and solar farms power electrolyzers to produce hydrogen for export to Japan, or in Germany, where salt caverns are used to store hydrogen underground.
Beyond technological innovation, the Rotterdam summit will also provide an opportunity to take stock of public policies and financial mechanisms supporting hydrogen deployment. Subsidies, guaranteed purchase tariffs, and environmental standards play a decisive role in accelerating projects. For example, the European Union adopted an ambitious hydrogen strategy in 2023, aiming to produce 10 million tons of green hydrogen annually by 2030, while importing an additional 10 million tons. These goals come with massive public funding, such as the €3 billion from the Innovation Fund or public-private partnerships to develop hydrogen corridors between Europe and North Africa. Similarly, in the United States, tax credits for green hydrogen production (up to $3 per kilogram) have already attracted billions of dollars in investment in electrolyzer gigafactories. These initiatives show that hydrogen is no longer just a future technology but an industrial reality in the making, where the political and economic choices of the coming years will be decisive.
However, challenges remain significant. One of the main obstacles is water, a vital resource for green hydrogen production. A 1 MW electrolyzer requires about 9 liters of water per kilogram of hydrogen produced, or nearly 10,000 liters per ton. In a context of growing water stress, particularly in arid regions where green hydrogen projects are developing (such as Australia or the Middle East), this dependency raises questions. Solutions are emerging, such as the use of desalinated seawater or wastewater recovery, but their large-scale deployment remains limited. Additionally, safety is a critical issue: hydrogen is highly flammable, and its handling requires adapted infrastructure to prevent explosion risks. Safety standards, still being harmonized internationally, will need to be strengthened to ensure widespread adoption. Finally, the social acceptability of hydrogen projects must not be underestimated. Local communities, especially those living near production or transport sites, must be involved in decision-making to avoid conflicts, as has been the case with some wind or gas projects.
The World Hydrogen Summit 2026 will therefore be much more than a trade show: it will be a laboratory for concrete solutions to overcome these challenges. Attendees will be able to discover the latest innovations in high-temperature electrolyzers, gas separation membranes, and hydrogen compression and transport systems. Panel discussions will address topics such as the harmonization of international standards, optimization of value chains, and viable business models to make hydrogen competitive. Partnerships announced during the event could give rise to flagship projects, such as export corridors between Europe and Latin America or industrial hubs integrating green hydrogen production, CCUS, and energy storage. Rotterdam, with its strategic port and logistics expertise, is positioning itself as a key player in this new economy, with projects like H2-Fifty, which aims to produce 500,000 tons of green hydrogen annually by 2027.
In conclusion, the World Hydrogen Summit & Exhibition 2026 in Rotterdam is set to be a pivotal moment for the hydrogen industry. As climate commitments multiply and investments pour in, this event will be the stage where major decisions shaping the energy landscape for decades to come will be made. Between technological hopes and industrial realities, between political ambitions and economic constraints, green hydrogen represents both an unprecedented opportunity and a colossal challenge. The coming years will be decisive in determining whether this seemingly simple molecule can truly become the driver of a successful energy transition. One thing is certain: without hydrogen, the decarbonization of certain sectors will be impossible. And without international collaboration, innovation, and political will, its deployment will remain a mirage. The Rotterdam summit will therefore be much more than a showcase: it will be a full-scale test for the future of our planet.