Product Overview

The SGH2 2kW Alkaline Water Electrolysis Stack is an alkaline water electrolysis stack that consumes 2kW electrical energy and generates 1kg/day H2 for its operational capability.

Stack Specifications

• Hydrogen production rate : 0.467 NM3/hr (1 kg/day)

• Output pressure : <10 bars

• Efficiency (HHV) : 82 %

• Stack energy consumption per kg H2 : 48 kWh

• Power supply requirements : 32 - 40 VDC, 0 - 120 A

• Minimum water input quality : ASTM D1193-06 Type III, Recommend Type I

• Water Consumption : up to 500 mL/hr (depending on the load)

• Stack operating temperature : 60 - 70 °C

• Dimensions : 256.3 mm (W) x 327.5 mm (H) x 190 mm (D)

• Weight : 50 kg

• Turn down ration : 10 %

• Turn up ratio : 200 % (Note 1)

• Electrolyte : 1 Molar KOH (5.34 wt%)

• Catalyst : Proprietary (PGM-free material)

• Degradation rate : approximately 1 % per year

• Membrane replacement : approximately every 3 - 4 years (depending on the end user's operational conditions) (Note 2)

Note 1: Efficiencies will reduce to 70% HHV

Note 2: Performance will recover to 99% after membrane replacement

Stack Operating Requirements

• Flow rate per inlet : 0.5 m3/hr

• Pressure head : 1 m

• Electrolyte : 1 Molar KOH (5.34 wt%)

• Water consumption : up to 500 mL/hr (depending on the load)

• Minimum water input quality : ASTM D1193-06 Type III, Recommend Type I

• Electrolyte Temperature : 60 - 70 °C

• Nominal Voltage : <36 V

• Nominal Current : 60 A

• Operating voltage range : 34 - 40 V

• Operating current range : 0 - 120 A

• Stack Dimensions : 256.3 mm (W) x 327.5 mm (H) x 190 mm (D)

Stack Connection List

• Stack inlets : 3/8 inch BSP threaded

• Stack outlets : 3/8 inch BSP threaded

SGH2 2kW Alkaline Water Electrolysis Stack Technical Specification Sheet

6-8 week lead time is to be expected.