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40kW Liquid Cooled FC System VL-Series

This is the second fuel cell stack of the mid-range fuel cells that Horizon offers, and its power profile positions this fuel cell stack well to be used in a number of mobility applications.  It is possible to use this fuel cell system in forklift operations, but the possibilities also extend to more demanding tasks in agriculture and construction.  With this kind of fuel cell stack it is possible to create a full range of zero emission construction vehicles, and the operators of these vehicles will benefit from the low noise profile that is a hallmark of hydrogen fuel cell technology.

For vehicle enthusiasts who love to modify vehicles of all kinds, this fuel cell stack offers a lot of possibilities.  It can be used to breath zero emission life back into an old car or truck, or it can be used as a fun experiment at creating a homemade zero emission vehicle (ZEV)!


40kW Liquid Cooled Fuel Cell VL-Series

Additional Infromation

Please complete a quote request form in order to request pricing information as well as to get proper delivery expectations.  We also encourage you to provide any additional information about your project so that we can help you determine if any additional components will be needed.  

University Note

For colleges and universities looking to expand their hydrogen and fuel cell curriculum with additional tools, Heliocentris offers products that are designed to be integrated into university classes.  Like the products that Horizon Fuel Cell Shop offers, the Heliocentris Academia International products pair multiple renewable energy sources like fuel cells, solar panels, and wind turbines in order for students to learn more about how using multiple renewable energy sources can work together to achieve zero emission communities.  Heliocentris products can also be purchased through our Fuel Cell Shop, and you can also go to the website for Heliocentris in order to learn more about the products that it offers.

Fuel Cell and Hydrogen

Safety Requirements

Do not attach or detach power cables when the fuel cell stack is turned on.

Warranty is void if the fuel cell stack is dismantled or otherwise modified.

Hydrogen is a colorless, odorless, and flammable substance.  Always operate and store the fuel cell stacks and hydrogen storage canisters in an area with ample ventilation.

Fuel cell systems should always be equipped with a highly accurate hydrogen sensor to detect any hydrogen that has escaped within the system or from the hydrogen storage canister.

Please refer to the VL II-40M User Manual to see the full list of the safety requirements for the product.



List of core VL-40 components and their functionality:

  • Air filter (Prevents damaging size particles from entering fuel cell)
  • Air flow meter (Monitoring feedback of air flow)
  • Hydrogen heat exchanger (Increase the temperature of hydrogen)
  • Intercooler (Reduce the temperature of the air entering the stack)
  • Humidifier (Adds humidity to the air entering the stack)
  • Throttle (Adjust the internal operating pressure of the stack)
  • PTC heater (Heating of low temperature cold start)
  • Water tank (Refill water to and exhaust the system)
  • Deionizer (Absorbs the ions in the coolant, reducing the conductivity of the coolant)
  • Water pump (Power the cooling system)
  • Low voltage distribution box (Provide low voltage distribution to the system)
  • Controller (Control system, communication between system and vehicle)
  • Fuel cell stack (Oxygen and hydrogen react to produce power)

40kW Liquid Cooled Fuel Cell VL-Series Quick Product Facts

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System Rated Power

This system power output is 40kW.

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Stack Rated Power

The fuel cell stack gives 53kW of output power.


Number of Cells

This fuel cell stack is composed of 220 fuel cells.


Voltage Current Output

The voltage current output of the fuel cell stack is 132 volts at 400 amperes.

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DC Output Voltage

Direct current output voltage reaches 220 to 420/450 to 650 volts


Fuel Cell Efficiency

Minimal fuel cell efficiency at rated power is 47.8%.


Ambient Temperature

The fuel cell stack operates best in a temperature ranging from -22 to 113° F / -30 to 45° C.

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Stack operating temperature

The fuel cell stack operates best in a temperature ranging from 70 to 80°C / 158 to 176°F.


FC System Weight

The stack (including DC and radiator) weighs 319lbs / 145kg.

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System dimensions

This fuel cell system dimensions are 890 x 600 x 520mm / 35 x 24 x 20″



Hydrogen Pressure

Hydrogen must be fed into the fuel cell stack at a pressure of 1.1-1.3 MPa.


Hydrogen Purity

A fuel of gaseous hydrogen at a minimum purity level of 99.97% is required.

Packing Information

  VL-05 VL-10 VL-30 VL-40 VL-65 VL-100 VL-120  
System rated power output (kW) * 5 10 30 40 65 100 120 *does not include cooling fan power and boost DC efficiency
Stack rated power output (kW) 6 12 36 53 79 120 150  
Number of cells 65 90 150 220 330 500 500  
Operating ambient temperature (℃) -10 to +40 -10 to +40 -30 to +45 -30 to +45 -30 to +45 -30 to +45 -30 to +45  
Storage ambient temperature (℃) -40 to +60 -40 to +60 -40 to +60 -40 to +60 -40 to +60 -40 to +60 -40 to +60  
Operating ambient humidity (%) 0 to 95 0 to 95 0 to 95 0 to 95 0 to 95 0 to 95 0 to 95  
Operating pressure (kPa) up to 50 up to 50 80 to 100 80 to 100 80 to 100 80 to 100 120 to 150  
IP rating IP54 IP54 IP67 IP67 IP67 IP67 IP67  
Vibration noise (dB) up to 80 up to 80 up to 78 up to 78 up to 78 up to 78 up to 90  
Voltage current output 125A@48V 222A@54V 400A@90V 400A@132V 400@198V 400@300V 500A@300V  
System dimensions (mm) ** 630 x 560 x 610 630 x 560 x 610 742 x 686 x 637 890 x 600 x 520 970 x 600 x 516 1200 x 790 x 520 1200 x 680 x 630 ** radiator, touch screen, booster DC or air compressor not included
System weight (kg) *** 170 180 135 145 170 238 290 *** booster DC not included
DC output voltage (V) 48 48/80            
Boost DC output voltage (V)     300 to 450 500 to 700 500 to 700 500 to 700 500 to 700  
System mass power density (W/kg) ****     220 275 382 420 505 *** booster DC not included
Fuel cell stack volume ratio power (kW/l)             3.5
Stack operating temperature (℃) 60 to 70 60 to 70 70 to 85 70 to 80 70 to 80 70 to 80 70 to 85  
H2 purity (% dry hydrogen) 99,97 99,97 99,97 99,97 99,97 99,97 99,97  
Average H2 consumption at rated power (m3/kWh)     up to 0,73 up to 0,73 up to 0,73 up to 0,73 up to 0,73  
Fuel Cell efficiency at rated power (%) at least 42 at least 42 at leas 47,8 at least 47,8 at least 47,8 at least 47,8 at least 47,8  
Hydrogen inlet pressure (Mpag) 0,6 to 1.0 0,6 to 1.0 1,1 to 1,3 1,1 to 1,3 1,1 to 1,3 1,1 to 1,3 1,1 to 1,3  


This product is only on demand. Please contact us.

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