GENCELL G5Long-Duration UPS


GenCell G5™ Solution Long-Duration UPS

The GenCell G5 long-duration UPS (uninterruptible power supply) provides a potentially unlimited source of 5kW backup power - along with support for peak loads of up to 100kVA - for a wide range of markets, from commercial and industrial applications to first responders and defense, telecom and other segments. Designed to be extremely reliable, the GenCell solution has minimal moving parts, redundant internal systems and is highly resilient to extreme environmental conditions (temperature, humidity, salinity).


The GenCell G5 overcomes the significant weaknesses of the most common backup power solutions: the limited duration of batteries, the smell, noise and lengthy startup time of diesel generators and the weather/daylight limitations of solar energy systems. Fueled by hydrogen, the clean energy of the future, the GenCell G5 long-duration UPS produces no emissions, noise or vibrations, making it ideal for indoor and outdoor use.

Absorbs peak loads

Dynamic Peak Load Absorption

The GenCell G5 Solution absorbs dynamic peak loads of up to 100kVA. The ultra-reliable long-duration backup power solution kicks in immediately, absorbs peak loads and provides uninterrupted power for critical assets for outages of any duration until grid power is restored - ensuring maximum business continuity.

Multiple unit G5 solutions have the added benefit of employing a redundant microgrid configuration which further increases their power reliability and flexibility.

MonitorsSystem's Health

The G5 backup power fuel cell solution employs our advanced IoT remote monitoring software, which offers businesses capabilities to control and maintain the fuel cell remotely. The easy-to-use software provides users complete visibility into system health at all times and alerts users to take prompt action in case of any issues. This eliminates the need for routine maintenance and provides the assurance that when it’s needed, the G5 backup power supply will kick-in to maintain full functionality. In contrast to diesel generators, parts and fuel replacement for the G5 are also far less frequent, significantly reducing maintenance costs for businesses.


  1. 5kW fuel cell generator
  2. Heat utilization unit for dissipating excess heat
  3. Energy bridge for immediate injection of power and regulating specific power output
Rated power configurations5kW
Output voltage configurations-48 VDC / +48 VDC / 230 VAC / 130 VDC
EmissionsUsable heat, water vapor
Run-time (per set of 6 fuel cylinders)15 hours at 5kW

Hydrogen99.95% or higher
Fuel consumption70 g/kWh
Input pressure300-500 kPa

Potassium hydroxide28-32% mass

Startup timeImmediate
Automatic start/stopIncluded
Remote control/management (NOC)Optional

 Every 500 hours of operation or annually, whichever comes first

Footprint2 m x 2.5 m (78.7 x 98.2 in)
Sound55 dB at 1 meter

Operating temperature-20°C up to +45°C (-4°F up to +113°F)
Relative humidityUp to 90%
Storage temperature-20°C up to +55°C (-4 °F up to +131°F)

EC Declaration of Conformity
The Standards Institution of Israel
EMC: EN55011/EN61000-6-2
ISO 9001:2008


Learn about fuel cell technologies and why GenCell’s solutions are an excellent source of backup energy.




The GenCell G5rx utility backup power solution produces 5kW of emissions-free electricity for substations during power outages.

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