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HXS-30 — a 46-cell, 30 kW stack, available to order, with measured 46-cell data

The 46-cell full stack has completed first operation; measured i-V data and all 46 cell voltages are published alongside the design values.

HXS-30 scales HydroXpand's nickel-based AEM stack platform to an approximately 521 cm² reference active area. The 46-cell, 30 kW full stack is available to order now, under long-term evaluation after first operation. The 5-cell short stack remains available for large-area validation.

7,500 L/h
46-cell design output
Approximately 15 kg H₂/day

30 kW / 46 cells
Full stack, available to order

≈521 cm²
Reference active area
600 cm² anode electrode

585 h
Measured 5-cell continuous run

01 — Know exactly what is available

Available now

5-cell short stack for large-area validation and integration development.

Available now

46-cell, 30 kW full stack, under long-term evaluation after first operation.

Product boundary

Stack hardware for customer-system integration, not a turnkey 30 kW electrolyser system.

02 — Measured on the 5-cell short stack

i-V reference

1.634 V/cell at 360 A.

Measured efficiency

90.7% HHV, approximately 43 kWh/kg-H₂, on the 5-cell configuration.

Continuous run

585 h · 330 A · 60 °C · electrolyte flow 4 L/min.

Cell-to-cell reference

1.615–1.630 V across five cells at 360 A.

03 — The 46-cell design envelope

Hydrogen production

7,500 L/h, approximately 15 kg/day (design).

Rated input

80 V · 360 A · 28.8 kW DC; 30 kW class.

Design efficiency

84% HHV, approximately 47 kWh/kg-H₂.

Hydrogen pressure

Up to 10 barg on the H₂ side.

Water consumption

6.5 L/h at 360 A design reference.

Size / weight

570 × 400 × 330 mm / 120 kg.

04 — Integration stays visible

HydroXpand supply

HXS-30 stack with defined DC, electrolyte and gas interfaces.

Customer system

Power conversion, electrolyte circulation and temperature control, gas and moisture handling, supervisory control and site safety.

Integration review

Output, duty cycle, pressure, cooling, gas treatment and interfaces are reviewed before quotation.

05 — Where HXS-30 fits best

Large-area MEA and short-stack validation

30 kW-class balance-of-plant development

Industrial equipment integration and demonstration projects

Scale-up programmes that need measured milestones before a full-stack build

06 — Build the RFQ around the validation gate

For a useful technical and commercial response, include:

Required output, cell configuration and development stage

DC power, electrolyte circulation and cooling concept

Pressure, gas treatment and safety architecture

Duty cycle, operating conditions and acceptance tests

Quantity, validation milestones and delivery schedule

Measured and designed values are intentionally separated. HydroXpand will identify which evidence applies to the proposed configuration before quotation.

Note: 5-cell results and the 46-cell first-operation i-V data are measured under the stated conditions. The 46-cell output, efficiency and consumption figures above remain design values until long-term evaluation is complete.

AEM Water Electrolysis Stack – HXS-30 (46 cells, 30 kW, available to order)