Power supplies and equipment for hydrogen production
Margex brings CRRC Zhuzhou Institute's green-hydrogen equipment to Romania: high-power IGBT power supplies, ALK and PEM electrolyzers, separation and purification units and energy management systems.
Flagship product
IGBT power supplies for electrolysis
Fully controlled IGBT rectifiers with AC/DC + DC/DC topology, load response under 0.1 seconds and power factor ≥ 0.99. Available from 3 MW to 22 MW per unit as indoor, outdoor or skid-mounted integrated machines, CRRC power supplies turn fluctuating renewable energy into stable DC for electrolyzers.
Key figures
3 – 22 MW
0 – 40 000 A
≤ 0.1 s
η 0.98
PF ≥ 0.99
IP54
H1000S
H2000
All-in-oneComplete the hydrogen production system
The power supply is the heart of the plant. Around it, CRRC delivers the entire equipment chain – from electrolyzer to 99.999 % pure hydrogen.
Flexible green hydrogen production systems
CRRC Zhuzhou Institute has created a new generation of flexible green-electricity hydrogen production systems that address electricity–hydrogen coupling, off-grid hydrogen production and large-scale ALK electrolyzers. They build on more than 60 years of power-electronics and control-algorithm expertise and on renewable clusters such as wind, solar, hydro and battery storage.
Flexible
Energy management system deeply coupled with wind and solar forecasting, dynamic power regulation and cluster control. The power supply responds in milliseconds, the electrolyzer in seconds.
Safe
Real-time inspection of temperature and voltage in the electrolyzer chambers, accurate gas and liquid regulation and control interlocks meeting petrochemical specifications.
Efficient
DC consumption ≤ 4.0 kWh/Nm³ H₂ for ALK, all-in-one configuration with centralized group control, process optimization and water and electricity savings.
Intelligent
DCS/PLC & SIS automatic control, AI-assisted operation, intelligent operation and maintenance and on-site instrument visualization.
CRRC reference projects
Over 145 MW of electrolyzers awarded in 2024 – ranked first in China.
Datang Duolun – 150 MW wind and solar
70 MW- Configuration:
- 3 × 4000 Nm³/h + 1 × 2000 Nm³/h
- Purpose:
- Replacing grey hydrogen for green methanol synthesis; 70 million Nm³ H₂/year, -130,000 t CO₂
- Location:
- Duolun, Inner Mongolia
Guohua Cangzhou – 100,000 t synthetic ammonia
65 MW- Configuration:
- 13 × 1000 Nm³/h electrolyzers + 2 × 4000 + 1 × 5000 Nm³/h separation
- Purpose:
- Green ammonia; 110 million Nm³ H₂/year, -200,000 t CO₂
- Location:
- Cangzhou, Hebei Province
China Coal Ordos – 100,000 t "liquid sunlight"
72 MW- Configuration:
- 12 × 1200 Nm³/h hydrogen production systems
- Purpose:
- Green methanol; 240 million Nm³ H₂/year, -500,000 t CO₂
- Location:
- Ordos, Inner Mongolia
Etuoke Banner – hydrogen and green ammonia
60 MW- Configuration:
- 12 × 1000 Nm³/h electrolyzers + 3 × 4000 Nm³/h separation
- Purpose:
- Green ammonia; 220 million Nm³ H₂/year, -450,000 t CO₂
- Location:
- Ordos, Inner Mongolia
Shanxi Hydrogen Energy – PEM electrolysis
2.5 MW- Configuration:
- 1 × 500 Nm³/h PEM system
- Purpose:
- Technical demonstration – largest single-unit PEM electrolyzer
- Location:
- Yulin, Shaanxi Province
About CRRC Zhuzhou Institute
Founded in 1959, CRRC Zhuzhou Electric Locomotive Research Institute is a wholly-owned subsidiary of CRRC Corporation, the world's largest rolling-stock manufacturer. In hydrogen energy, the institute develops IGBT power supplies, ALK and PEM electrolyzers, separation and purification systems, EMS and process control systems, delivering "flexible, safe, efficient and intelligent" solutions. Its products are certified by Bureau Veritas and SGS.
1959year founded
145 MWelectrolyzers awarded in 2024 – no. 1 in China
1 GW/yrelectrolyzer production capacity
4000 Nm³/hlargest test centre in the industry