PEM electrolyser

Hyter's range of hydrogen generators also includes PEM solutions, thanks to the collaboration with third-party partners. This allows us to meet market demands for system sizes above 1 MW. In fact, we offer PEM electrolyser sizes in the 1-10 MW nominal range, with hydrogen production up to 2,000 Nm3/h.

How

Hyter's PEM electrolyser technology works

The PEM electrolysis cell, with Proton Exchange Membrane Water Electrolysis technology, has an acid electrolyte solution in which H+ ion is transported from the anode to the cathode via a selective proton exchange polymer membrane. The H+ ion then reaches the cathode where the H2 molecule is produced.

The process liquid used in the PEM stack must be of the deionised type, i.e. Ultra Pure Water, ASTM I grade, characterised by a conductivity < 0.1 µS/cm, and TOC < 30 ppb. Our water treatment systema is able to directly transform ordinary water from the network, or another source, into ultra-pure water using filtration, reverse osmosis and deionisation systems.

Main features

of Hyter PEM electrolysers

Our modular and customisable PEM hydrogen generators are an optimal solution when coupled with a renewable energy source. These solutions are suitable for large-scale projects, from the use of hydrogen for industrial purposes to applications in power-to-methane plants.

LARGE SCALE STACK

NO PRESENCE OF KOH AS ELECTROLYTE

OPTIMAL MATCHING TO RES CURVE

MODULAR AND FLEXIBLE DESIGN

The sizes

of our PEM electrolysers

Hyter's portfolio of PEM electrolyser solutions includes sizes from 1 MW to 10 MW nominal, with nominal hydrogen production of up to 2,000 Nm3/h. Our solutions are modular with single module up to 5 MW.

Stack technology PEM
Stack size 1.250 kW – 255 Nm3/h – 22,9 kg/h
Specific consumptionstack 1000 kW* 4,56 kWh/Nm3 (50,76 kWh/kg)
Generator size
Q200 Nm3/h[...]1000 Nm3/h
X1.200 Nm3/h[...]2000 Nm3/h
Specific consumptionelectrolyser 1000 kW(200 Nm3/h)** 4,98 kWh/Nm3 (55,45 kWh/kg)
Specific consumptionelectrolyser 2000 kW(400 Nm3/h)** 4,90 kWh/Nm3 (54,55 kWh/kg)
Specific consumptionelectrolyser 3000 kW(600 Nm3/h)** 4,90 kWh/Nm3 (54,55 kWh/kg)
Specific consumptionelectrolyser 4000 kW(800 Nm3/h)** 4,88 kWh/Nm3 (54,3 kWh/kg)
Specific consumptionelectrolyser 5000 kW(1000 Nm3/h)** 4,97 kWh/Nm3 (55,33 kWh/kg)
Quality of process water I ASTM grade
Hydrogen purity 99,5% (up to 99,999% with purification system)
Hydrogen outlet pressure up to 34 barg

* referred to nominal conditions at the beginning of life
** referred to nominal conditions at the beginning of life and an external temperature of 20°C