HVDD HVDE HVDF HVDG HVDH PEM Electrolyzer Series Industrial PEM Hydrogen Generator

Hyvoda five-series pem hydrogen generator delivers hydrogen capacity from 0.5 to 250 Nm³/h. Self-developed PEM electrolysis technology accommodates intermittent new energy power, serving global green hydrogen construction and industrial hydrogen demand scenarios.

Features

Built on mature hydrogen generator pem water electrolysis technology
Five series cover 0.5 to 250 Nm³/h full hydrogen production range
Adapt to fluctuating power output of Wind Solar Hybrid System
No alkaline electrolyte required to cut daily maintenance costs
PLC intelligent control supports 24h unattended continuous operation
Multi safety interlocks for overheat, water shortage and gas overpressure
Specific energy consumption controlled below 4.4 kWh per cubic meter hydrogen
Core electrolytic stack service life no less than 50000 working hours

Applications

On-site construction of renewable hydrogen production plants worldwide
Hydrogen supply for Fuel Cell Power Plants testing and operation
Industrial raw hydrogen for chemical, semiconductor manufacturing industries
New energy storage via converting power into Renewable Hydrogen
Front-end gas source supply for hydrogen fuel stations
Supporting projects for global Industrial Decarbonization objectives
Energy matching for large-scale new energy power storage stations

Working Principle

Every pem hydrogen generator in HVDD, HVDE, HVDF, HVDG, HVDH series adopts PEM water electrolysis reaction as the core operating logic. Direct current is applied to both sides of membrane electrode assemblies inside the electrolytic stack, which drives deionized ultrapure water to split into hydrogen gas at cathode and oxygen gas at anode respectively.

The solid proton exchange membrane inside the unit only allows hydrogen protons to pass through, physically separating hydrogen and oxygen completely to avoid gas cross-mixing risks during continuous operation. Compared with Alkaline Electrolyzer devices, this structural form requires no periodic filling, replacement or maintenance of liquid alkaline electrolyte, which greatly lowers long-term operational workload and eliminates internal pipeline corrosion caused by alkaline solution.

The internal circulating water loop driven by built-in pumps maintains the entire electrolysis system running steadily within 40 ℃ to 60 ℃. This fixed temperature window balances electrolysis reaction efficiency and the aging speed of internal membrane components, extending the stable service cycle of the pem hydrogen generator core parts. The whole system only consumes electricity and ultrapure water as raw materials, no harmful byproducts are discharged, which matches the construction standards of green hydrogen plant and Clean Energy Storage Solutions.

The flexible load adjustment capability of hydrogen generator pem enables seamless docking with Wind Solar Hybrid System. When wind power or photovoltaic power output fluctuates irregularly, the electrolysis load can adjust synchronously to convert surplus electric energy into Renewable Hydrogen, realizing new energy storage and laying a foundation for advancing Industrial Decarbonization.

Distinction Among HVDD / HVDE / HVDF / HVDG / HVDH Five Series (Refer to Parameter Table)

All five categories belong to industrial-grade pem hydrogen generator products, sharing unified energy consumption index, stack service life, operating temperature range and core PEM technical route. The differences concentrate on hydrogen production flux, MEA specification, outlet pressure grade, pipeline connection standard and applicable project scale:

HVDD Series (0.5 ~ 2 Nm³/h Hydrogen Output)

Entry industrial small-flow hydrogen generator pem. MEA effective dimension 140×70mm; hydrogen side withstand pressure 0~0.3MPa. Adopts 3/8 inch threaded pipe joints with compact overall size. Suitable for factory workshop small-batch hydrogen supply and laboratory amplification test projects.
HVDE Series (2.5 ~ 4 Nm³/h Hydrogen Output)

Medium-small flow transitional model. MEA upgraded to 200×130mm with increased cell quantity and circulating water pump displacement; hydrogen side pressure remains 0.3MPa. Mainly applied to electronic material processing and small Fuel Cell Power Plants bench testing scenarios.
HVDF Series (5 ~ 15 Nm³/h Hydrogen Output)

Standard medium-flow industrial pem hydrogen generator. Higher operating current matches larger hydrogen yield; oxygen side outlet needs pressure above 0.1MPa assisted by peripheral parts. Chuck quick-disconnect ports are adopted for convenient modular combination, widely used in medium-sized renewable hydrogen demonstration stations.
HVDG Series (20 ~ 50 Nm³/h Hydrogen Output)

Large-flow container-level hydrogen production equipment. MEA area expanded to 420×420mm; hydrogen side maximum bearing pressure reaches 1.6MPa. High-pressure hydrogen can be directly connected with Hydrogen Compressor for pressurized storage, applicable to formal Renewable Hydrogen Production Plant construction.
HVDH Series (80 ~ 250 Nm³/h Hydrogen Output)

Ultra-large flow flagship hydrogen generator pem, the maximum yield model of the whole product line. Oversized MEA and multi-layer stacked electrolytic cells equip large-caliber industrial pipe interfaces. Matches large wind-solar power bases, used for centralized green hydrogen preparation, hydrogen fueling station raw gas supply and large-scale Industrial Decarbonization transformation projects.

Standard Technical Description

Every pem hydrogen generator relies on solid membrane electrolysis to decompose ultrapure water into hydrogen and oxygen, eliminating alkaline electrolyte addition and replacement work all through the service period. Internal pipeline erosion caused by lye can be completely avoided.
The inlet raw water must be ultrapure water with resistivity above 15MΩ·cm. Qualified water quality prevents scaling and ion corrosion inside the stack, protecting the structural stability of internal membrane and MEA assemblies for long-term operation.
The embedded circulating water pump automatically adjusts cooling flow to sustain 40℃–60℃ constant operating temperature, stabilizing electrolysis efficiency under variable working loads.
Hydrogen production energy consumption of all models is strictly limited under 4.4 kWh/Nm³. Optimized cell structure reduces cumulative power expenditure during long-term continuous running.
Following standardized operation and periodic maintenance, the core electrolytic stack can reach designed service life of over 50000 hours to ensure sustained stable gas supply.
Integrated PLC automatic control system is equipped; emergency shutdown will be triggered once overheating, water shortage or gas overpressure occurs, complying with international safety standards for hydrogen equipment.

HVDD / HVDE / HVDF / HVDG / HVDH Series Parameter Table

1. HVDD Series (Hydrogen Output: 0.5 ~ 2 Nm³/h)

Technical Parameter	HVDD-WE0.5M	HVDD-WE1M	HVDD-WE1.5M	HVDD-WE2M
Hydrogen production capacity	0.5 m³/h	1 m³/h	1.5 m³/h	2 m³/h
Oxygen production capacity	0.25m³/h	0.5m³/h	0.75m³/h	1m³/h
Effective MEA Area	140*70mm	140*70mm	140*70mm	200*130mm
Number of Cells	9 cells	17 cells	25 cells	13 cells
Working DC Current	147 A	147 A	147 A	390 A
Working DC Voltage	16.2-22.5 V	30.6-42.5 V	45-62.5 V	23.4-32.5 V
Oxygen side water inlet	3/8 inch	3/8 inch	3/8 inch	50.5 chuck
Oxygen side water outlet	3/8 inch	3/8 inch	3/8 inch	50.5 chuck
Hydrogen side gas outlet	3/8 inch	3/8 inch	3/8 inch	3/8 inch
Oxygen side pressure resistance	0-0.5MPa	0-0.5MPa	0-0.5MPa	0-0.5MPa
Hydrogen side pressure resistance	0-0.3MPa	0-0.3MPa	0-0.3MPa	0-0.3MPa
Water pump flow	5.4 L/min	10.2 L/min	15 L/min	23.4 L/min
Working Temperature	40-60 ℃	40-60 ℃	40-60 ℃	40-60 ℃
Energy Consumption	≤4.4 kWh/Nm³	≤4.4 kWh/Nm³	≤4.4 kWh/Nm³	≤4.4 kWh/Nm³
Water Quality Requirement	Ultrapure water ≥15MΩ	Ultrapure water ≥15MΩ	Ultrapure water ≥15MΩ	Ultrapure water ≥15MΩ
Designed Service Life	≥50000 H	≥50000 H	≥50000 H	≥50000 H
Overall Dimension(LWH) mm	175280124.3	175280165.5	175280206.7	386387162

2. HVDE Series (Hydrogen Output: 2.5 ~ 4 Nm³/h)

Technical Parameter	HVDE-WE2.5M	HVDE-WE3M	HVDE-WE3.5M	HVDE-WE4M
Hydrogen production capacity	2.5 m³/h	3 m³/h	3.5 m³/h	4 m³/h
Oxygen production capacity	1.25m³/h	1.5m³/h	1.75m³/h	2m³/h
Effective MEA Area	200*130mm	200*130mm	200*130mm	200*130mm
Number of Cells	16 cells	19 cells	22 cells	25 cells
Working DC Current	390 A	390 A	390 A	390 A
Working DC Voltage	28.8-40 V	34.2-47.5 V	39.6-55 V	45-62.5 V
Oxygen side water inlet	50.5 chuck	50.5 chuck	50.5 chuck	50.5 chuck
Oxygen side water outlet	50.5 chuck	50.5 chuck	50.5 chuck	50.5 chuck
Hydrogen side gas outlet	3/8 inch	3/8 inch	3/8 inch	3/8 inch
Oxygen side pressure resistance	0-0.5MPa	0-0.5MPa	0-0.5MPa	0-0.5MPa
Hydrogen side pressure resistance	0-0.3MPa	0-0.3MPa	0-0.3MPa	0-0.3MPa
Water pump flow	28.8 L/min	34.2 L/min	39.6 L/min	45 L/min
Working Temperature	40-60 ℃	40-60 ℃	40-60 ℃	40-60 ℃
Energy Consumption	≤4.4 kWh/Nm³	≤4.4 kWh/Nm³	≤4.4 kWh/Nm³	≤4.4 kWh/Nm³
Water Quality Requirement	Ultrapure water ≥15MΩ	Ultrapure water ≥15MΩ	Ultrapure water ≥15MΩ	Ultrapure water ≥15MΩ
Designed Service Life	≥50000 H	≥50000 H	≥50000 H	≥50000 H
Overall Dimension(LWH) mm	386387177.4	386387192.8	386387208.3	386387223.7

3. HVDF Series (Hydrogen Output: 5 ~ 15 Nm³/h)

Technical Parameter	HVDF-WE5M	HVDF-WE8M	HVDF-WE10M	HVDF-WE15M
Hydrogen production capacity	5 m³/h	8 m³/h	10 m³/h	15 m³/h
Oxygen production capacity	2.5m³/h	4m³/h	5m³/h	7.5m³/h
Effective MEA Area	300*170mm	300*170mm	300*170mm	300*170mm
Number of Cells	17 cells	27 cells	34 cells	50 cells
Working DC Current	765 A	765 A	765 A	765 A
Working DC Voltage	30.6-42.5 V	48.6-67.5 V	61.2-85 V	90-125 V
Oxygen side water inlet	50.5 chuck	50.5 chuck	50.5 chuck	50.5 chuck
Oxygen side water outlet	50.5 chuck	50.5 chuck	50.5 chuck	50.5 chuck
Hydrogen side gas outlet	3/4 inch*2	3/4 inch*2	3/4 inch*2	3/4 inch*2
Oxygen side pressure resistance	0-0.5MPa	0-0.5MPa	0-0.5MPa	0-0.5MPa
Hydrogen side pressure resistance	0-0.3MPa	0-0.3MPa	0-0.3MPa	0-0.3MPa
Water pump flow	47.6 L/min (Outlet pressure ≥0.1Mpa)	75.6 L/min (Outlet pressure ≥0.1Mpa)	95.2 L/min (Outlet pressure ≥0.1Mpa)	140 L/min (Outlet pressure ≥0.1Mpa)
Working Temperature	40-60 ℃	40-60 ℃	40-60 ℃	40-60 ℃
Energy Consumption	≤4.4 kWh/Nm³	≤4.4 kWh/Nm³	≤4.4 kWh/Nm³	≤4.4 kWh/Nm³
Water Quality Requirement	Ultrapure water ≥15MΩ	Ultrapure water ≥15MΩ	Ultrapure water ≥15MΩ	Ultrapure water ≥15MΩ
Designed Service Life	≥50000 H	≥50000 H	≥50000 H	≥50000 H
Overall Dimension(LWH) mm	516495251.7	516495315.25	516495359.7	516495461.3

4. HVDG Series (Hydrogen Output: 20 ~ 50 Nm³/h)

Technical Parameter	HVDG-WE20M	HVDG-WE30M	HVDG-WE40M	HVDG-WE50M
Hydrogen production capacity	20 m³/h	30 m³/h	40 m³/h	50 m³/h
Oxygen production capacity	10m³/h	15m³/h	20m³/h	25m³/h
Effective MEA Area	420*420mm	420*420mm	420*420mm	420*420mm
Number of Cells	20 cells	30 cells	40 cells	50 cells
Working DC Current	2646 A	2646 A	2646 A	2646 A
Working DC Voltage	36-50 V	54-75 V	72-100 V	90-125 V
Oxygen side water inlet	77.5 chuck	77.5 chuck	77.5 chuck	77.5 chuck
Oxygen side water outlet	77.5 chuck	77.5 chuck	77.5 chuck	77.5 chuck
Hydrogen side gas outlet	1 inch*2	1 inch*2	1 inch*2	1 inch*2
Oxygen side pressure resistance	0-0.5MPa	0-0.5MPa	0-0.5MPa	0-0.5MPa
Hydrogen side pressure resistance	＜1.6MPa	＜1.6MPa	＜1.6MPa	＜1.6MPa
Water pump flow	77.15 L/min (Outlet pressure ≥0.15Mpa)	115.73 L/min (Outlet pressure ≥0.15Mpa)	154.3 L/min (Outlet pressure ≥0.15Mpa)	192.89 L/min (Outlet pressure ≥0.15Mpa)
Working Temperature	40-60 ℃	40-60 ℃	40-60 ℃	40-60 ℃
Energy Consumption	≤4.4 kWh/Nm³	≤4.4 kWh/Nm³	≤4.4 kWh/Nm³	≤4.4 kWh/Nm³
Water Quality Requirement	Ultrapure water ≥15MΩ	Ultrapure water ≥15MΩ	Ultrapure water ≥15MΩ	Ultrapure water ≥15MΩ
Designed Service Life	≥50000 H	≥50000 H	≥50000 H	≥50000 H
Overall Dimension(LWH) mm	746860321.5	746860383	746860444.5	746860506

5. HVDH Series (Hydrogen Output: 80 ~ 250 Nm³/h)

Technical Parameter	HVDH-WE80M	HVDH-WE100M	HVDH-WE200M	HVDH-WE250M
Hydrogen production capacity	80 m³/h	100 m³/h	200 m³/h	250 m³/h
Oxygen production capacity	40m³/h	50m³/h	100m³/h	125m³/h
Effective MEA Area	760*420mm	760*420mm	760*420mm	760*420mm
Number of Cells	40 cells	51 cells	102 cells	127 cells
Working DC Current	4788 A	4788 A	4788 A	4788 A
Working DC Voltage	72-100 V	91.8-127.5 V	183.6-255 V	228.6-317.5 V
Oxygen side water inlet	130 chuck	130 chuck	130 chuck	130 chuck
Oxygen side water outlet	130 chuck	130 chuck	130 chuck	130 chuck
Hydrogen side gas outlet	RC 1 inch*2	RC 1 inch*2	RC 1 inch*2	RC 1 inch*2
Oxygen side pressure resistance	0-0.5MPa	0-0.5MPa	0-0.5MPa	0-0.5MPa
Hydrogen side pressure resistance	＜1.6MPa	＜1.6MPa	＜1.6MPa	＜1.6MPa
Water pump flow	279.22 L/min (Outlet pressure ≥0.2Mpa)	356.01 L/min (Outlet pressure ≥0.2Mpa)	712.01 L/min (Outlet pressure ≥0.2Mpa)	886.53 L/min (Outlet pressure ≥0.2Mpa)
Working Temperature	40-60 ℃	40-60 ℃	40-60 ℃	40-60 ℃
Energy Consumption	≤4.4 kWh/Nm³	≤4.4 kWh/Nm³	≤4.4 kWh/Nm³	≤4.4 kWh/Nm³
Water Quality Requirement	Ultrapure water ≥15MΩ	Ultrapure water ≥15MΩ	Ultrapure water ≥15MΩ	Ultrapure water ≥15MΩ
Designed Service Life	≥50000 H	≥50000 H	≥50000 H	≥50000 H
Overall Dimension(LWH) mm	9361104540.5	9361104605.4	9361104906.3	93611041053.8

FAQ

What is the core difference between HVDD-HVDH industrial pem hydrogen generator and HVDA/HVDB/HVDB1/HVDC small desktop series?

Hydrogen yield: Desktop units output 150ml/min ~ 5L/min only for laboratory analytical instruments; industrial series ranges 0.5–250Nm³/h for factories and large energy projects.
Pressure grade: Small desktop devices maximum hydrogen pressure 0.5MPa; HVDG & HVDH support up to 1.6MPa high-pressure outlet for direct compression and storage.
Structural layout: Desktop machines are compact cabinet type; industrial systems adopt modular container layout, supporting multi-unit parallel capacity expansion.
Power adaptability: Small equipment fits stable grid power supply; industrial pem hydrogen generator is optimized for intermittent Wind Solar Hybrid System power to store renewable hydrogen.
Connection ports: Desktop uses tiny threaded fittings; industrial equipment adopts chuck and large-caliber industrial pipeline interfaces.

Can this pem hydrogen generator work normally with intermittent wind and photovoltaic power?

Yes. The PEM electrolysis structure owns rapid load response speed, which can follow power fluctuation in real time without shutdown or efficiency decline. Surplus electricity is converted into Renewable Hydrogen to realize Clean Energy Storage Solutions.

Can the equipment be connected with Hydrogen Compressor to realize high-pressure hydrogen storage?

HVDG and HVDH series hydrogen side pressure can reach 1.6MPa, which can be directly connected with Diaphragm Hydrogen Compressor or Reciprocating Hydrogen Compressor for secondary pressurization and tank storage. HVDD, HVDE, HVDF need additional pressurizing devices for high-pressure storage demands.

Why is ultrapure water above 15MΩ·cm compulsory inlet water for pem hydrogen generator?

Impurity ions contained in ordinary tap water will precipitate inside the electrolytic stack, scratch the surface of internal proton exchange membrane, cause irreversible performance attenuation and greatly shorten the service life of core MEA components.

Can multiple identical pem hydrogen generator units run in parallel to increase total hydrogen output?

All five series support parallel operation mode. Users can add equipment step by step according to project progress. This layout is widely adopted in large green hydrogen plant and hydrogen power plant construction worldwide.

What advantages does pem hydrogen generator have compared with Methanol Reforming Hydrogen Generator?

Hydrogen produced by pem hydrogen generator water electrolysis achieves nearly zero carbon emissions, which is more suitable for low-carbon Industrial Decarbonization projects. Methanol reforming relies on methanol raw materials and generates CO₂ byproducts, mostly applied in scenarios without strict carbon emission restriction requirements.