In the rapidly evolving world of Green Hydrogen, Unipolar Electrolysers — also known as Alkaline Water Electrolysers (AWE) — remain a cornerstone technology. With over a century of proven commercial use, alkaline electrolysers are ideal for large-scale, stable hydrogen production powered by renewable energy. As a premier Unipolar Electrolyser Manufacturer in India, ORAIPL provides advanced, high-performance alkaline electrolysers tailored for industrial applications.
What is Unipolar Electrolysis?
Unipolar Electrolysis is a method of splitting water (H₂O) into hydrogen (H₂) and oxygen (O₂) using an alkaline electrolyte and a direct current (DC) electrical source. Each electrode in the system is individually connected to the power supply — hence the term unipolar.
The system typically uses potassium hydroxide (KOH) or sodium hydroxide (NaOH) as the electrolyte, with nickel-based electrodes submerged in an electrochemical cell.
The Science Behind Alkaline Electrolysis
Electrochemical Reactions:
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At the Cathode (−):
2H₂O + 2e⁻ → H₂ + 2OH⁻ -
At the Anode (+):
2OH⁻ → ½O₂ + H₂O + 2e⁻
The generated hydrogen is captured at the cathode, while oxygen is released at the anode. A diaphragm or separator prevents mixing of gases, ensuring purity and safety.
ORAIPL’s Unipolar (Alkaline) Electrolysers for Green Hydrogen
ORAIPL manufactures two high-efficiency models of Alkaline Electrolysers for Green Hydrogen, optimized for industrial hydrogen production. Our systems are designed for durability, scalability, and integration with renewable energy sources such as solar and wind.
Key Features:
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High Electrochemical Efficiency (75–85%)
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Robust Electrodes with long lifespan
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Low Operating Pressure Options (1–30 bar)
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Modular Design for scalability up to multi-MW
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Automatic Control Systems for O&M simplification
Available Models:
Advantages of Unipolar (Alkaline) Electrolysers
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Mature Technology: Long-established and extensively validated.
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Cost-Effective: Lower capital cost than PEM-based alternatives.
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Large Capacity: Ideal for continuous bulk hydrogen generation.
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Durability: Components can last 10+ years with proper maintenance.
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Compatibility: Works well with steady renewable energy input (e.g., solar farms).
Applications of Unipolar Electrolysers
ORAIPL’s Alkaline Electrolysers are powering a wide array of Green Hydrogen projects in:
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Green Ammonia and Fertilizer Production
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Hydrogen for Steel and Cement Industries
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Energy Storage and Grid Backup
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Fuel for Hydrogen Internal Combustion Engines (H2-ICE)
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Decarbonization of Refineries and Petrochemical Plants
ORAIPL – Trusted Unipolar Electrolyser Manufacturer in India
With deep domain expertise and state-of-the-art manufacturing, ORAIPL is a leader in Alkaline Electrolyser innovation. Our in-house engineering ensures:
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Custom configurations based on customer needs
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Superior material sourcing and build quality
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Rapid commissioning and after-sales service
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Integration with hydrogen compression and storage systems
Commitment to Sustainability
At ORAIPL, we believe that Green Hydrogen is the future of clean energy. Our Unipolar Electrolysers are designed not just for performance, but also for sustainability — using recyclable materials, reducing carbon footprint, and minimizing energy loss.
For industries seeking reliable, scalable, and cost-effective Green Hydrogen solutions, Unipolar Electrolysis remains the gold standard. With many advanced Alkaline Electrolyser models and a track record of innovation, ORAIPL is your trusted partner for building a zero-carbon future.
Partner with ORAIPL — India’s most reliable Unipolar Electrolyser Manufacturer.