No humidifier. There is no need for a humidifier due to the composition of the Membrane Electrode Assembly (MEA) which results in a simpler, cheaper and more reliable fuel cell system.

No compressor. There is no liquid water in a HTPEM MEA and therefore there is no need for a compressor. This further reduces system complexity, cost and noise level while greatly increasing fuel cell system efficiency. Due to the high operating temperature, heat can easily be removed from the fuel cell system.

No radiator. There is no need for a liquid cooling loop. Assuming an ambient temperature of 40°C, a LTPEMFC operating temperature of 70°C and a HTPEMFC operating temperature of 160°C, then one has a Ät of 30°C for the LTPEM system compared to a Ät of 120°C for the HTPEMFC. The Ät of a HTPEMFC is therefore 400% more than for the LTPEMFC. The result is that there is no need for a complicated, bulky and expensive liquid cooling system. A simple, small and inexpensive fan can be used for cooling instead. The parasitic loss from the fan reaches a maximum of 3.5%.

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