The AEM Nexus 500

Meet the little brother of the AEM Nexus 1000

We have the right solution: The AEM Nexus 500

Produce 500 kW Green Hydrogen. Simply. Rapidly. Anywhere.

The AEM Nexus 500 uses many AEM Electrolyser cores for optimum reliability  with fast response times to fluctuating renewable energy: Green hydrogen that never sleeps! This AEM Nexus 500 is a 500 kW containerised electrolyser largely pre-assembled for fast commissioning featuring 210 AEM stack modules around a common balance of plant (BoP).


The AEM stack module is the centerpiece of the product platform, minimum modular unit (MMU). It is equipped with the necessary sensors to measure flow speeds, temperatures and pressures. This enables detailed and granular monitoring of the state of health of each stack, as well as optimization of overall system management to balance running times and schedule pre-emptive maintenance activities.

AEM Nexus 500 green hydrogen applications

  • Renewable energy storage for developers, utilities & communities. Optimise fluctuating renewables with green hydrogen storage for grid balancing, microgrids, curtailed power and supply of green gas. Unlock power-to-X, power-to-gas, commercial supply, heating & cooling use cases.
  • Industrial applications replacing grey hydrogen and natural gas. Use it for green ammonia production, as a carrier gas for semiconductors, in blast furnace injection for green steel, renewable methanol, biofuel and biogas production, as well as in glass annealing or as a chemical feedstock.
  • Hydrogen refuelling stations for private FCEV fleets or commercial users. With our AEM Nexus you can easily replace grey hydrogen refuelling, enable the switch from conventional combustion engine vehicles or make your own synthetic fuels and e-fuels.
  • Energy self-sufficiency for businesses and institutions. Use green hydrogen to unlock back-up energy, replace polluting diesel generators, research H2 solutions and energy independence, become completely energy self-sufficient, as well as unlock both on-grid and decentralised micro-grids


Production rate:

105 Nm³/h

H2 outlet pressure:

up to 35 barg

Hydrogen output purity:

99.9% in molar fraction

Hydrogen outlet temperature:

5 – 55 degree C

Oxygen nominal flow:

52,5 Nm³/h

Nominal electrical power consumption:

504 kW  Beginning of Life (BOL)
600 kW  Near End of Life (EOL)


3 × 400 Vac three-phase grid


50/60 Hz

Water nominal consumption:

95 L/h

Water inlet quality:

Minimum ASTM D1193-06 Type IV or recommended Type II or Type III

Hot startup time:

0 – 100% within seconds

Cold startup time:

0 – 100% in ca 30 minutes,
Assuming 5 degree C ambient temperature

Turndown ratio:

33:1  (Maximum flow/ Minimum flow)


12.19 m x 2.44 m x 6.89 m (L x W x H)

Energy Management System (EMS)

Energy Management System:

Enapter’s unique Energy Management System (EMS) allows for intuitive monitoring and control of the electrolysers and dryers, as well as easy integration with third-party devices (ie. fuel cells, sensors, tanks, solar, wind, etc.).

The EMS takes energy system control software to a whole new level.

You can have a closer look at Enapters EMS-Page.

Request for a quote

Send us a short message, if you are interested in this packacke and we’ll get back to you as soon as possible.