EFOY H₂Rack R-Series

Modular hydrogen energy supply

Technical data

The Output range is between 5 and 10 kW

The EFOY H₂Rack is a hydrogen-powered, scalable energy solution for use inside existing shelters or containers that require a reliable emergency power supply. It offers a flexible and powerful solution for back-up power applications that use hydrogen as a clean and efficient energy carrier.

The open rack design allows for flexible installation and customization, while direct airflow through the back panel enables efficient cooling. With its compact design, the EFOY H₂Rack requires only minimal space. The height is flexible and depends on the number of fuel cells used. For higher power requirements, the system can be expanded up to 10 kW.

The ideal autonomous power supply

Advantages of the EFOY H₂Rack


Compact design


Scalable application


Seamless integration


Optimized for Capacitors

Applications of the EFOY H₂Rack

Emergency power supply for telecommunications infrastructure

The EFOY H₂Rack is the ideal solution for telecommunications sites that require a reliable emergency power supply. With scalable power output and seamless integration into existing infrastructure, it ensures a stable power supply even in remote, off-grid locations. Due to its compact design and straightforward installation, the EFOY H₂Rack can be integrated perfectly into existing shelters and provides an emission-free power source for telecommunications systems running even when the electric grid fails.

Fail-safe emergency power supply for fiber optic cable stations

Fiber optic stations are critical to maintaining a stable and reliable telecommunications network—any power interruption can severely disrupt data transmission.The EFOY H₂Shelter, with integrated EFOY H₂Rack, ensures that these important communication nodes continue to operate reliably even during extended power outages. Due to its scalable power output, the EFOY H₂Shelter flexibly adapts to different application requirements. The integrable H₂Rack provides emission-free electricity and ensures an emergency power supply for 72 hours, keeping essential infrastructure running when it matters most.

Preliminary Technical Data EFOY H₂Rack R10

 EFOY H₂Rack
Fuel CellsEFOY Hydrogen 5.0
Output Power9,0 kW DC / 8,2 kW AC
Control unitEFOY Hydrogen 5.0 Controller
Input voltage230 VAC
Nominal system voltage48 VDC
AC Out (Optional Inverter)4-pin 16/32A CEE 3F+N
Hydrogen purityHydrogen 3.5 or higher
CapacitorEFOY Hydrogen 5.0 UltraCap
Dimensions (W x D x H)600 x 600 x 2200 mm
Weight97 kg (empty rack) ca. 320 kg fully equipped

Subject to modifications and errors. Valid from 14.02.2025

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Technical data EFOY H₂Rack R10 (preliminary)

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