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A485 Series Alkaline Electrolyser Stack and Electrolyte System Module
A Series electrolysers are based on our proven 2.2 MW modular A485 design. With a power consumption at the stack of 4.5 kWh/Nm3 of hydrogen gas produced, they are the world’s most energy efficient electrolyser. Utilizing this core technology, customers are able to build complete hydrogen plants at scale, reaching into the hundreds of MW and even the GW levels.
Features
Unprecedented Efficiency: At the stack level, the A Series boasts a remarkable cell stack power consumption as low as 4.5 kWh/Nm³ and setsa new standard for energy efficiency in hydrogen production.
Scalability Redefined: A485 electrolyser stacks can be combinedto meet any production capacity requirements.
Unmatched Safety Standards: A485 stacks operating at atmospheric pressureand ensurean exceptionally safe environment.
Complete Solution Package: Nel provides a process and safety control system for the atmospheric part of your hydrogen generation system.
Specifications
Source: Nel Hydrogen
| Specifications | A485 | ||||
|---|---|---|---|---|---|
| Maximum H₂ Production Rate (1x A485 Electrolyser) | 485 Nm³/h (+0/-3%)1,046 kg/24 h (+0/-3%) | ||||
| Turndown Range | 15 to 100% of flow range | ||||
| Operational / Design Pressure | 0.03 barg(0.435 psig) /0.1 barg (1.45 psig) | ||||
| Operational / Design Temperature | 80 °C (176 °F) /90 °C (194 °F) | ||||
| Ambient Temperature | 5 to 45 °C(41 to 113°F) | ||||
| Maximum Load (Electrical Current) | 5,150 A | ||||
| Power Consumption at Stack at 100% Capacity1 | 4.5 kWh/Nm³ (±0.1%)50 kWh/kg (±1.1%) | ||||
| H₂ Purity | 99+% [saturated gas with liquid water, O₂ < 1 %] | ||||
| O₂ Purity | 99.5+%[saturated gas with liquid water, H₂ < 0.5 %] | ||||
| Space requirement (Stack + Balance of Stack) | ~60 m² | ||||
| Electrolyte | 25% KOH Aqueous Solution |
For reference only – specifications are subject to change. Please contact Nel Hydrogen for solutions to best fit your needs.
1Beginning of life and dependent on configuration and operating conditions.
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