h2agentur exclusively promotes PEM stacks from Plug Power (former Giner ELX), USA. These stacks are extremely durable, capable of being operated with differential pressure and very stable even under challenging conditions. The PEM stacks combine large production of H2 with high efficiency. High current densities allow for extreme compact design.
G5 | PEMI / HP PEMI | Medium Size Stack | Allagash | |
---|---|---|---|---|
H2 Production: | 0.02 – 0.1 Nm3/h | 0.06 - 1.2 Nm3/h | 0.5 – 30 Nm3/h | 2 – 210 Nm3/h |
Power Consumption (max): | 0.5 kW | 6 kW | 150 kW | 1000 kW |
H2 Pressure (max): | 20 bar | 20 / 40 bar | 40 bar | 40 bar |
Operating Temperature: | 40° | 70° | 70° | 70° |
External Dimensions: | Ø 15 cm2 | Ø 16 / 21 cm2 | Ø 40 cm2 | 80 x 80 cm2 |
G5

Commercial PEM stack for laboratories and smaller applications.
Typical features are:
H2 Production Rate | Nm3/h | 0.02 - 0.1 | ||||
Power Consumption (max) | kW | 0.5 | ||||
Differential Pressure | bar | 0 - 20 | ||||
Diameter | cm | 15 | ||||
Active Area | cm2 | 50 |
PEMI

Commercial PEM stack for laboratories and smaller applications.
Typical features are:
H2 Production Rate | Nm3/h | 0.06 - 1.2 | Specification Sheet | |||
Power Consumption (max) | kW | 6 | ||||
Differential Pressure | bar | 0 - 20 | ||||
Diameter | cm | 16 | ||||
Active Area | cm2 | 50 |
HP PEMI

PEM stack comparable to PEMI but in special configuration for higher pressure applications.
Typical performance features are:
H2 Production Rate | Nm3/h | 0.06 - 1.2 | ||||
Power Consumption (max) | kW | 6 | ||||
Differential Pressure | bar | 0 - 40 | ||||
Diameter | cm | 21 | ||||
Active Area | cm2 | 45 |
Medium Size Stack

Highly efficient PEM stack for commercial applications. Particularly suitable for high current densities and high temperatures, with reaction times less than one second. Typical features are:
H2 Production Rate | Nm³/h | 0.5 – 30 | ||||
Power Consumption | kW | 2 - 160 | ||||
Differential Pressure | bar | 0 - 40 | ||||
Diameter | cm | 40 | ||||
Active Area | cm2 | 300 |
Allagash

Compact PEM stack for industrial applications in the MW range. With adapted design for optimized material utilization. Typical features are:
H2 Production Rate | Nm³/h | 2 – 210 | Specification Sheet | |||
Power Consumption | kW | 8 – 1,000 | ||||
Differential Pressure | bar | 0 - 40 | ||||
Foot Print | cm2 | 80 x 80 | ||||
Active Area | cm2 | 1,250 |
All stacks are manufactured according to ASME standard and come with CE marking. The data are indicative and subject to change without notice.
- Plug Power / Giner has been manufacturing PEM stacks for over two decades. Their PEM stacks have proven reliability and longevity in many applications worldwide, e.g. for over 20 years in life-saving systems of US Navy submarines. Also for operation on ISS in space stacks were successfully designed.
- Plug Power / Giner has gathered enormous knowledge and built up special expertise in developing PEM stacks for challenging conditions. Additionally to those mentioned above the track record show extreme low weight PEM stacks for airborne applications, very compact design combined with large hydrogen output achieved by high current densities and extreme differential pressures of 350 bar. The knowledge gained is transferred to commercial product development.
- To achieve outstanding performance Plug Power / Giner coats membranes in its own production using proprietary manufacturing process developed over many years.