Technology. Green Hydrogen & Electrolyzers

Green hydrogen engineering, from electrolyzer cell to plant.

We help technology developers and industrials design, integrate and commission green hydrogen systems, alkaline, PEM, AEM and SOEC, at pilot through industrial scale.

How Ionect plugs in

Engineering, not explanation.

Ionect provides engineering and hands-on technology development for green hydrogen projects across the full electrolyzer stack, alkaline, PEM, AEM and SOEC. We support technology developers scaling new electrolyzer designs and industrials integrating hydrogen into existing operations, from cell-level engineering to balance-of-plant and commissioning.

Where Ionect plugs in

Six capabilities, across the hydrogen value chain.

Cell, stack & system selection

Structured trade-offs between alkaline, PEM, AEM and SOEC, scoped to your project drivers.

Balance-of-plant design & integration

Water treatment, gas conditioning, compression, storage and tie-ins to the host site.

Pilot & modular electrolyzer systems

Skidded and containerised hydrogen units engineered for repeatability and field deployment.

Commissioning, troubleshooting & de-bottlenecking

Hands-on support on site to bring electrolyzer systems into stable, specified operation.

Independent design & performance review

Third-party scrutiny of vendor claims, system design and operational performance.

Techno-economic assessment

CAPEX, OPEX and LCOH for hydrogen projects, with sensitivities investors actually trust.

Electrolyzer technologies

Alkaline, PEM, AEM and SOEC, compared.

Four electrolyzer families, each with different strengths. The right choice depends on load profile, scale, purity, pressure and the maturity tolerance of the project.

Alkaline (AEL)

Most mature electrolyzer technology, KOH electrolyte, robust for steady baseload operation.

Maturity
Commercial
Typical scale
MW to >100 MW
Where Ionect adds value
System integration, balance-of-plant, large-scale plant engineering and commissioning.

PEM

Proton-exchange membrane stacks, fast dynamics, high-pressure and high-purity output.

Maturity
Commercial
Typical scale
kW to tens of MW
Where Ionect adds value
Integration with variable renewables, dynamic operation studies, modular system design.

AEM

Anion-exchange membrane, lower-cost materials, PEM-like behaviour, smaller track record.

Maturity
Commercial-emerging
Typical scale
kW to low MW
Where Ionect adds value
Scale-up engineering, pilot integration and independent performance assessment.

SOEC

Solid-oxide high-temperature electrolysis, highest efficiency where waste heat is available.

Maturity
Pre-commercial / pilot
Typical scale
kW to early MW
Where Ionect adds value
Heat integration with downstream processes, pilot design and feasibility studies.

We are vendor-independent, we help you choose the right technology for the project, not the one we're tied to.

Who we serve in green hydrogen

Two audiences, one engineering team.

For startups & innovators

You're developing a new electrolyzer technology or a hydrogen-based process.

We bring hands-on electrolyzer experience to your pilot, integration and commissioning, from novel cell chemistries and AEM scale-up to Solhyd-style developer pilots.

  • Pilot system design and modular integration
  • Scale-up of novel cell and stack designs
  • On-site commissioning and troubleshooting
For industrials

You're evaluating hydrogen for decarbonisation.

We size the system, select the technology, and produce the engineering basis before you commit capital, for captive hydrogen in chemical processes, ammonia, refining and mobility hubs.

  • System sizing and technology selection
  • Integration with existing utilities and process
  • Independent engineering basis ahead of FID
Common questions we get asked

Hydrogen project decisions, answered.

Which electrolyzer technology should I choose for my project?+

It depends on the load profile, scale, footprint, water and utility availability, downstream pressure and purity requirements, and the maturity tolerance of your project. Alkaline is the most mature and lowest-CAPEX choice for steady, large-scale baseload hydrogen. PEM offers fast dynamics and high-pressure output, ideal for variable renewable input. AEM is emerging as a lower-cost alternative to PEM but with a smaller commercial track record. SOEC is the most efficient at high temperatures but still pre-commercial at scale and best suited where waste heat is available. We run a structured trade-off against your specific drivers, so the choice is defendable to investors and regulators.

Can you work alongside our existing electrolyzer vendor?+

Yes. We frequently act as the independent engineering partner alongside an OEM, focused on balance-of-plant, integration with the host site, and the interfaces the vendor doesn't cover. We have no commercial ties to electrolyzer suppliers, so our role complements rather than competes with theirs.

How do you handle balance-of-plant for high-pressure or high-purity hydrogen?+

Through deliberate design of compression, purification (deoxo, drying), buffer storage and metering, sized to the downstream specification. We address material compatibility, leak management, ATEX zoning and venting from the start, not as an afterthought to the stack selection.

Do you support both green hydrogen and blue/grey-to-green transition projects?+

Yes. Many industrial sites today run on grey or blue hydrogen and need a credible path to partial or full green substitution. We help define the staged transition, co-existence with existing supply, integration with renewables or PPAs, and the engineering required at each step.

Can you take a hydrogen project from feasibility through commissioning?+

Yes. Feasibility and techno-economic assessment, conceptual and front-end engineering, pilot and modular system development, and on-site commissioning and troubleshooting are all in scope. For detailed engineering and EPC execution we typically hand the basis of design to a larger partner and stay involved as technical owner.

Are you tied to any electrolyzer manufacturer?+

No. Ionect is fully vendor-independent. Recommendations are made on technical and economic merit against the project's drivers, with the criteria documented so the reasoning is transparent to your board, investors or regulators.

Considering hydrogen for your project or developing a new hydrogen technology? Talk to us.

Discuss a hydrogen project