Everfuel Launches HySynergy Low-Carbon Hydrogen Plant in Denmark

An Operational Milestone in Green Hydrogen Production

When Denmark threw open the doors of HySynergy on November 3, 2025, it wasn’t just another ribbon-cutting—it marked a huge step toward sustainable energy. Nestled in Fredericia and run by Everfuel, this low-carbon hydrogen plant is one of only four pumping out green hydrogen in Europe today. In phase one, eight Proton Exchange Membrane (PEM) electrolysers—all juiced by solar and wind—are set to churn out roughly eight tonnes of H₂ each day. That clean hydrogen won’t just stay local: it’ll feed a nearby refinery and head across the border to industrial partners in Germany, showing that hydrogen production can truly weave together different regions and sectors.

How PEM Electrolysis Powers HySynergy

At its core, PEM electrolysis is elegantly simple yet powerful—splitting water into hydrogen and oxygen with renewable electricity:

• Electricity from adjacent wind farms and solar panels flows into the PEM stacks.
• Water is introduced, and under an electrical current, hydrogen bubbles up at the cathode while oxygen forms at the anode.
• The separated hydrogen is then pressurized and piped off to end users.

Because every electron comes from renewables, the end product qualifies as genuine green hydrogen, sidestepping any lifecycle carbon emissions.

Strategic and Regional Context

Fredericia, founded in 1650, is a classic industrial port city in western Denmark with about 41,680 residents. Its deep-water harbor, existing pipeline network, and strategic spot on the map made it a no-brainer for hydrogen infrastructure. Everfuel, launched in 2019 by CEO Jakob Korsgaard, owns 51% of the project and has rallied utilities and regional manufacturers to roll out renewable hydrogen at scale—fueling a wave of industrial decarbonization across Northern Europe.

From Grey to Green: Hydrogen’s Evolution

Most hydrogen today is “grey,” made by steam methane reforming and releasing about ten kilos of CO₂ for every kilo of H₂. Even “blue” hydrogen—with carbon capture—can’t shake a hefty footprint. Only true green hydrogen—produced by electrolysis powered entirely by renewables—can claim zero emissions. Despite generous incentives and lofty climate pledges, green hydrogen has barely scratched 1% of global output, hamstrung by high power bills and pricey electrolysers.

Collateral Benefits and Remaining Hurdles

Getting HySynergy up and running does more than decarbonize—it:

• Kicks off new, specialized jobs in operations and maintenance.
• Encourages fresh investment in hydrogen pipelines and refueling stations.
• Serves as a living lab for syncing variable renewables with heavy-duty industrial demand.

But hurdles remain: electrolysers are still more expensive than traditional gear, critical materials like platinum-group metals can bottleneck supplies, and the project needs steady political and financial backing—otherwise, green hydrogen risks getting undercut by cheaper, fossil-derived alternatives.

A Global Check: Europe vs. China

Europe likes to claim the mantle of green hydrogen trailblazer, but China has quietly outpaced it in electrolyser installations, thanks to top-down coordination and lower manufacturing costs. Europe’s patchwork of permits and balkanized energy markets have slowed things down. That said, the continent’s high share of renewables and tough emission standards could pay dividends—provided it scales projects like HySynergy and simplifies regulations.

Business Implications and Market Positioning

Beyond slashing emissions, hydrogen is vital for industries that can’t be plugged in directly—think chemicals, refineries, and heavy transport. HySynergy’s opening 20 MW capacity, set to skyrocket to 350 MW down the road, crowns Everfuel as a heavyweight in the emerging hydrogen infrastructure game. By serving local plants and German partners, the project also pioneers cross-border energy trade—just what the EU’s integrated market ordered.

Policy Drivers and European Landscape

Denmark’s green ambition sits squarely within the EU’s Renewable Energy Directive (RED III), which sets clear goals for renewables and low-carbon hydrogen. According to the International Energy Agency, Europe currently hosts only four sub-megawatt low-carbon hydrogen plants. With HySynergy’s first phase already at 20 MW, Denmark shows how smart policy and private investment can catapult Europe’s hydrogen capacity forward.

The Road Ahead

• Will electrolyser costs and electricity prices keep dropping, making green hydrogen truly cost-competitive?
• Can supply chains and production lines scale fast enough for that 350 MW target?
• How resilient is the business model if political winds shift?

HySynergy could end up as the blueprint for Europe’s hydrogen future, but its lasting impact hinges on tech costs, regulatory consistency, and robust market demand. One thing’s for sure: the chapter on green hydrogen is just getting started.