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H-20 PEM Fuel Cell - 20W

20W PEM Fuel Cell Stack Overview

At 20-watts this fuel cell stack remains on the entry-level side of the fuel cell stack spectrum for integration into proof-of-concept projects.  The minimal power envelop provides an easy-to-use product.  A miniature electronic valve, control electronics, integrated fan, and low voltage protection provide useful features that enable this fuel cell stack to accelerate project development.


Fuel Cell Stack 20W

Additional Information

While the H-20 can be purchased without any supporting components, Horizon Educational recommends contacting us to build a total package in order to more effectively integrate the product into your project.  You can click here to fill out a quote request form if you would like to create a complete package that includes the fuel cell stack and required supporting components.

Fuel Cell and Hydrogen

Safety Requirements

Do not connect or disconnect power cables when the fuel cell stack is turned on. Warranty is void if the fuel cell stack is disassembled or otherwise altered. 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 leaking hydrogen within the system or from the hydrogen storage canister. Please refer to the H-20 User Manual to see a complete list of the safety requirements for the product.

Hydrogen blog

You can read posts to our blog to learn more about the way that our low wattage fuel cell stacks are changing this world and helping students to learn about hydrogen and fuel cells.  Our blog is also a great way to get caught on H2GP season updates, and other fuel cell electric vehicle racing updates.

Fuel Cell Stack 20W Quick Product Facts


Number of Cells

This fuel cell stack is composed of 13 fuel cells.


Hydrogen Pressure

Hydrogen must be fed into the fuel cell stack at a pressure of 0.45-0.55 Bar.


Ambient Temperature

The fuel cell stack operates best in a temperature ranging from 41 to 86° F / 5-30°C.



This fuel cell stack uses self-humidification.


FC Stack Weight

Stack weight (including fan and casing) is 0.60lb / 275g.


System Efficiency

At full power the efficiency of the system is 40%.


Performance: 7.8V @ 2.6A
Hydrogen consumption at rated power: 0.28l/min.
Stack dimensions: 7.5 x 4.7 x 7.0cm

List of H-20 components:

1 x 20W fuel cell stack
1 x controller
1 x silicon tube (OD 4 x ID 2.5mm), 50cm long
1 x filter1 x filter

2 x black plastic pin
1 x valve
2 x inlet/outlet gas fitting (M3-4)

Recommended optional items:


User Manual

pdf [926.9 kB]


pdf [880.45 kB]
pdf [880.45 kB]

This product is only on demand. Please contact us.

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