PEM Water Electrolyzer Systems for Green Hydrogen Production
HELE supplies PEM water electrolyzer systems for industrial, OEM and green hydrogen projects, with system configuration reviewed around hydrogen output, pressure, purity, power, control, water quality and project integration requirements.
What Defines the Right PEM Electrolyzer System
A PEM electrolyzer should be specified around the required hydrogen duty and project conditions—not hydrogen output alone.
The system configuration should be reviewed against hydrogen purity and pressure, operating profile, power source, water quality, cooling, control requirements, installation conditions and downstream hydrogen use.
Hydrogen Duty
Output · Purity · PressureDefine the required hydrogen production rate, product-gas specification and downstream pressure requirement.
Power & Operation
Power Supply · Load Profile · Operating HoursReview the available electrical supply, operating schedule and whether the system will operate continuously, intermittently or with variable renewable power.
Water & Thermal Conditions
Feed Water · Cooling · Ambient ConditionsConfirm available water quality, water-treatment requirements, cooling utilities and site operating conditions.
Controls & Integration
PLC · HMI · Interfaces · Safety RequirementsDefine the required control architecture, monitoring interface, system communication and project-specific safety requirements.
PEM Electrolyzer Systems We Supply
HELE supplies compact, skid-mounted, modular and containerized PEM electrolyzer systems for hydrogen production requirements from 0.01 to 300 Nm³/h across the S, H, C and M series. Final system selection should be based on hydrogen demand, operating conditions, available utilities and required supply scope.
S-Series Compact PEM Electrolyzer
Laboratory hydrogen production · Small hydrogen equipment · Pilot applications · Low-demand hydrogen supply
Compact cabinet / small integrated system
- Compact footprint for lower hydrogen demand
- Suitable for laboratory, pilot and small-scale system integration
H-Series Mid-Range PEM Electrolyzer
Fuel cell systems · Distributed energy systems · Microgrids · Industrial on-site hydrogen supply
Integrated / skid-mounted system
- Integrated configuration for mid-range hydrogen demand
- Suitable for distributed and industrial on-site hydrogen applications
C-Series Industrial PEM Electrolyzer
Hydrogen stations · Chemical processing · Polysilicon · Semiconductor and electronics industries
Industrial skid-mounted system
- Designed for industrial hydrogen-production applications
- Project-specific BoP and utility integration
M-Series High-Capacity PEM Electrolyzer
Large industrial hydrogen demand · Renewable hydrogen production · Energy storage · Hydrogen infrastructure
Modular / multi-skid system
- Modular architecture for higher-capacity hydrogen projects
- Suitable for multi-unit and project-scale system integration
Containerized PEM Electrolyzer
Renewable hydrogen projects · Outdoor installations · Remote sites · Industrial hydrogen production
Containerized PEM hydrogen-production system
- Pre-integrated containerized system layout
- Project-specific utility, control and site interfaces
Typical Series Performance Reference
| Parameter | Reference Value |
|---|---|
| Load Adjustment Range | 0–120% |
| Hydrogen Pressure | 0.1–3.5 MPa |
| Hydrogen Purity | ≥99.999% |
| DC Power Consumption | <4.4 kWh/Nm³ H₂ |
| Power Supply | 220 / 380 V, depending on configuration |
The values above are reference specifications for the S, H, C and M series. Final operating pressure, hydrogen purity, energy consumption, electrical configuration and other guaranteed performance values should be confirmed against the selected model and agreed operating conditions.
Not sure which PEM electrolyzer system fits your hydrogen project?
Share your hydrogen output, purity, pressure, power source, water quality, application, and installation requirements. Our team can help review a suitable PEM system configuration.
From PEM Stack to Complete Electrolyzer System
A PEM stack is the core hydrogen generation module, but a complete PEM electrolyzer system requires more than the stack itself. For stable hydrogen production, the stack must be integrated with water supply, power control, cooling, gas-liquid separation, safety monitoring, and system-level automation.
Hele Titanium supports PEM stack supply and complete PEM electrolyzer system integration according to hydrogen output, pressure, purity, application, power source, water quality, installation site, and project documentation requirements.
PEM Stack
Balance of Plant
Complete System
PEM Stack
The electrochemical core where water is split into hydrogen and oxygen. Stack design, active area, cell number, materials, current density, and sealing quality affect output, efficiency, and stability.
Water Management
Provides purified water to the PEM stack and helps maintain stable operating conditions. Water quality, flow rate, filtration, circulation, and conductivity control should be reviewed according to system requirements.
Power Supply & Control
Converts and controls electrical input for stable stack operation. Power supply design, voltage-current control, PLC, HMI, monitoring logic, and automation interface affect system performance and usability.
Gas-Liquid Separation
Separates generated hydrogen and oxygen from water during operation. Separator design, drainage, drying, purification, pressure control, and downstream gas handling should match purity and pressure requirements.
Cooling & Thermal Management
Controls operating temperature to support stable stack performance. Cooling method, heat exchange, temperature monitoring, and thermal protection should be reviewed according to operating load and site conditions.
Safety & BoP Integration
Supports safe and reliable operation through hydrogen detection, ventilation, pressure protection, emergency shutdown, sensors, valves, piping, and system interlocks.
Engineering Note
Final system configuration should be reviewed according to hydrogen output, purity target, outlet pressure, power source, water quality, cooling condition, BoP requirements, automation interface, installation environment, and documentation needs.
What We Need to Review Your PEM Electrolyzer Project
Key Specifications to Confirm
Share the key project inputs below so we can review the suitable system configuration, operating conditions and supply scope for your PEM electrolyzer project.
Instead of selecting only by capacity, buyers should confirm how the complete PEM system will be integrated, operated, monitored, and documented for the project.
These technical factors directly affect system design, performance, stability, and integration.
| Selection Factor | What to Confirm | Why It Matters |
|---|---|---|
|
1. Hydrogen Requirement
|
Required Output · Nm³/h or kg/day · Operating Hours | Defines stack size, power rating, and overall system configuration. |
|
2. Product Gas
|
Purity · Outlet Pressure · Dew Point | Affects gas treatment, drying, purification, and application suitability. |
|
3. Power Supply
|
Voltage · Frequency · Grid / Renewable Source | Affects rectifier selection, control logic, efficiency, and operating stability. |
|
4. Water & Cooling
|
Feed Water Quality · Water Source · Cooling Utility | Water quality and cooling directly affect PEM stack performance and service reliability. |
|
5. Installation Conditions
|
Indoor / Outdoor · Ambient Conditions · Area Classification | Affects footprint, ventilation, safety design, and maintenance planning. |
These factors are important for project planning, quotation, logistics, and delivery.
| RFQ Factor | What to Confirm | Why It Matters |
|---|---|---|
|
1. Project Scope
|
BoP · Controls · Standards · Destination · Timeline | Supports engineering approval, procurement review, logistics, and delivery planning. |
Buyer Note
A strong RFQ should not only say “Please quote a PEM electrolyzer.”
A more useful request is:
“We need a PEM electrolyzer for [application], with [hydrogen output], [purity], [pressure], [operating hours], [power source], [water condition], [installation environment], and [control or safety requirements].”
Custom PEM Electrolyzer Engineering & Integration
PEM electrolyzer projects often require system-level adaptation around site interfaces, installation format, control architecture and project documentation.
HELE can review custom system requirements against the selected PEM electrolyzer configuration and agreed project scope.
System Format
Configure the system format according to required capacity, installation space, project layout and deployment conditions.
Site Interface
Review the utilities and mechanical interfaces required for integration with the project site.
Control Interface
Control and communication interfaces can be reviewed according to the required automation architecture.
OEM & Project Requirements
OEM integration, project drawings, identification and documentation can be reviewed according to the approved specification.
PEM Electrolyzer Applications
System selection depends on hydrogen demand, product-gas requirements, operating profile, available utilities and downstream integration.
Green Hydrogen Production
Renewable Power · Hydrogen Production · Energy Projects
PEM electrolyzer systems for hydrogen production using renewable or other project-defined electrical power sources.
Industrial On-Site Hydrogen
Process Gas · Plant Utility · Continuous Demand
On-site hydrogen generation for industrial processes and applications requiring controlled hydrogen supply.
Renewable Energy Integration
Solar · Wind · Variable Power
PEM systems reviewed around variable power profiles, operating strategy, hydrogen storage and control requirements.
Hydrogen Refueling & Mobility Support
Hydrogen Generation · Storage Interface · Station Integration
Hydrogen-production systems reviewed against required purity, pressure, downstream compression and storage interfaces.
Research & Pilot Hydrogen Production
Pilot Plant · Demonstration · Development
Compact or project-specific PEM electrolyzer systems for pilot and development projects.
Need a Different PEM Product?
If you need a standalone PEM stack, hydrogen generator or PEM test platform rather than a complete PEM electrolyzer system, use the dedicated product page for that equipment.
PEM Electrolyzer Testing, FAT & Project Documentation
Inspection and FAT scope should be agreed according to the selected PEM electrolyzer configuration, operating requirements and project specification.
Stack Assembly & Sealing
Stack assembly, compression, sealing and interface conditions can be inspected against the confirmed product requirements.
Pressure & Leak Testing
Applicable water and gas circuits can be checked according to the agreed pressure and leak-test requirements.
Electrical & Control Testing
Power supply, control logic, PLC / HMI, alarms and applicable system responses can be reviewed during agreed system testing.
Hydrogen & Gas Handling
Applicable hydrogen-output, purity, separation, drying, purification and outlet-condition checks can be included according to project scope.
Safety Verification
Applicable detection, alarm, pressure-protection, shutdown and system-interlock functions can be reviewed according to the agreed configuration.
FAT & Documentation
Factory acceptance activities and project documentation can be prepared according to the approved inspection and documentation requirements.
Available Documentation May Include
- Technical Datasheet
- GA Drawing
- P&ID
- Wiring Diagram
- Operation Manual
- FAT Record
- Inspection Record
- Pressure / Leak Test Record
- Packing List
- Agreed Project Documents
Engineering Note: Final inspection methods, acceptance criteria and documentation scope should be confirmed before order release.
PEM Electrolyzer FAQ
Practical answers for hydrogen project developers, EPC firms, industrial operators, system integrators, research teams, and procurement buyers sourcing PEM electrolyzer systems or stacks.
What information is needed to quote a PEM electrolyzer?
What hydrogen output can HELE supply?
What hydrogen purity and outlet pressure are available?
What water quality does a PEM electrolyzer require?
What is included in a complete PEM electrolyzer system?
What FAT and technical documents can be provided?
Inside Our Manufacturing & Quality System
See how we produce, inspect, and document PEM electrolyzer systems as a direct manufacturing partner.
See how PEM electrolyzers move from component preparation and stack assembly to system integration, testing, and final shipment preparation.
Component Preparation
PEM Stack Assembly
System Integration
Final Packing & Release
A look inside the production areas where PEM electrolyzer stacks, hydrogen generation systems, control cabinets, piping modules, and system assemblies are prepared.
PEM Stack Assembly Area
System Integration Workshop
Electrical Control Assembly
Packing & Dispatch Area
Our inspection process verifies stack assembly quality, sealing performance, pressure resistance, electrical performance, hydrogen output, system control, and final documentation before shipment..
Stack Sealing Inspection
Pressure & Leak Testing
Electrical Performance Test
System Commissioning Check
Documentation and certification support are essential for industrial procurement, traceability, and project approval.
Documentation Support
Every order can be supported with comprehensive documentation:
- Mill Test Certificate (MTC)
- EN 10204 3.1
- Material Traceability
- ISO-managed Quality Process
- Third-Party Inspection Support
- ASTM / ASME Compliance
Material Traceability Records
ISO Quality Certification
Third-Party Inspection Support
Request a PEM Electrolyzer Technical Quote
Tell us your hydrogen requirement and project conditions so we can review the suitable PEM electrolyzer configuration, operating conditions and supply scope.
- Complete PEM Electrolyzer System Supply
- Custom Hydrogen Output, Pressure & System Integration
- FAT, Drawings & Project Documentation Available
Prefer email? sales@heletitanium.com