Independent Energy System Integrator

WE LET
ENERGY FLOW

From idea to operation.

We develop, integrate and realise energy systems that work - technically, commercially, safely and in the real world.

IndependentTechnology & supplier neutral
IntegratedOne working system
Delivery focusedFrom concept to operation
7hydrogen production & refuelling projects
10 MWelargest electrolyser development
2,000 kg/daylargest HRS capacity in portfolio
6+collective energy-hub developments
SafeSolidSimpleStandardTechnology independentLifecycle driven
What Hystream does

Advice and engineering are means. Realisation is the goal.

Hystream can solve one critical project issue, deliver a product, or take responsibility across the full trajectory. Everything we do is aimed at one safe, reliable and workable system.

Expert support

Feasibility studies, business cases, subsidy applications, permitting, safety, engineering, commissioning, troubleshooting, training or another critical project component.

Integrated delivery

From first idea to operation, coordinating interfaces, partners, technology choices, safety, subsidies and delivery.

Products & solutions

Hystream products or selected third-party technology, supplied stand-alone or integrated into a complete system.

From idea to operation

One integrated development path

Clients retain freedom of technology and suppliers. Hystream can lead the complete trajectory or step in exactly where a project needs us most.

1Feasibility study & business caseDemand, production, CAPEX/OPEX, offtake
2Funding & subsidiesSubsidy applications, financing, commercial structure
3Permitting & safetyEnvironment, QRA, fire safety, HAZID/HAZOP, ATEX
4FEED & engineeringPFD, P&ID, specifications, interfaces
5Procurement / EPCMTendering, vendor alignment, construction management
6CommissioningFAT/SAT, start-up, PSSR, safety verification
7OperationO&M support and performance improvement
Subsidies & funding

Funding is part of making projects happen.

Hystream supports subsidy strategy and applications as part of project development. Recent results include successful SWIM applications for Woerden in 2025 and Ede in 2026, with Ede ranked #1.

A technically strong project still needs the right financial route to become reality.

Recent SWIM track record

2025 - Woerden HRS
SWIM subsidy successfully granted.

2026 - Ede HRS & electrolysis
SWIM subsidy successfully granted - #1 in the ranking.

Training & courses

From project knowledge to practical training.

Hystream also provides training on hydrogen safety and practical application. We offer in-company sessions and contribute to external courses for professionals who need practical, directly applicable knowledge.

Hystream training

Training can cover hydrogen basics, safe use, project interfaces, commissioning and operational awareness - always tailored to the audience and the real-world application.

Ask about training

Innovam + Hystream

Want to join the joint Innovam and Hystream hydrogen course? Use the button below to go directly to the course information page.

View Innovam + Hystream course

In-house reference

Hystream successfully delivered an in-house training for Verboon Maasland on the safe use of hydrogen generator sets.

Products

Hystream-developed building blocks

Products grow from real project challenges and can be used stand-alone or as part of a larger system.

Hystream Battery
Proprietary development

Hystream Batteryâ„¢

Semi-mobile hydrogen production, compression, storage and dispensing platform.

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Hystream CUBE Bundle
Commercially available

Hystream CUBE Bundleâ„¢

Compact high-pressure mobile hydrogen storage with quick-connect couplings.

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ZEBRA
Decision Making Tool

ZEBRAâ„¢

Optimises PV and battery sizing including the complete economic and financial optimum.

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The human side of energy projects

Technology connects assets. People make projects work.

A project can make perfect sense on paper and still fail without commitment, trust and positive momentum. Hystream manages the dynamics between entrepreneurs, authorities, residents, suppliers and other stakeholders - proactively and reactively.

TechnologyEconomicsSafetyRegulationHuman Energy
Selected projects

Built experience, not only studies

Operational assets and active developments give us a practical view of interfaces, safety, permitting, commissioning and long-term operation.

Dordrecht hydrogen station
Operational · 1,000 kg/day

Dordrecht

Underground hydrogen refuelling station.

Oude-Tonge hydrogen station
HRS operational · 1.0 MWe AEM

Oude-Tonge

1,000 kg/day HRS and AEM electrolysis.

Nieuwegein hydrogen production
Operational · 2.5 MWe PEM

Nieuwegein

Production and 1.1 km hydrogen pipeline.

Explore projects

How we work

Independent. Practical. Collaborative. Long-term. Human.

IndependentWe choose what fits the project.
PracticalRealisation over reports for their own sake.
CollaborativeIf you can share, you can multiply.
Long-termLifecycle value over lowest initial CAPEX.
HumanWe follow the energy in the system and in the people.

Do you have an energy challenge?

One technical question, a product, a stalled project or a complete trajectory - tell us what needs to work.

Contact Hystream