Marine Dolphin provides a deep‑sea electrolysis platform that splits seawater into hydrogen and oxygen at ~3,000 m depth, using ambient hydrostatic pressure to compress hydrogen to 300 bar without external compressors. The system incorporates a salt‑tolerant anion‑exchange membrane electrolyzer and an oxygen‑energy recovery unit, enabling low‑energy, offshore green hydrogen production integrated with renewable power sources for oil‑gas, wind and maritime operators.
Funding
Funding not disclosed
Founders
Product
Problem
Current green hydrogen production relies on land‑based electrolyzers that require costly desalination of seawater, high‑energy compression, and extensive infrastructure, limiting scalability and increasing carbon footprints. These constraints hinder the deployment of hydrogen as a large‑scale, low‑carbon energy carrier, especially in offshore environments where abundant seawater and natural pressure are untapped resources.
Solution
Marine Dolphin delivers a patent‑pending deep‑sea electrolysis system that directly splits seawater into hydrogen and oxygen at depths of roughly 3,000 m, leveraging the ambient hydrostatic pressure of ~300 bar to eliminate mechanical compression. The platform integrates an anion‑exchange membrane (AEM) electrolyzer equipped with salt‑tolerant catalysts, allowing operation without pre‑treated water. High‑pressure oxygen generated as a by‑product is harvested to produce auxiliary electricity, further reducing net power demand. The resulting hydrogen is automatically pressurized at source, piped to the surface, and stored, achieving the “capture‑compress‑store” cycle in a single offshore unit. The design is optimized for coupling with renewable offshore power sources (solar, wave, wind), delivering near‑zero CO₂ emissions and minimal operational OPEX.
Target Audience
Primary customers are offshore energy operators—oil & gas platform owners, offshore wind farm developers, and maritime logistics firms—seeking to produce green hydrogen on‑site for power, fuel, or commercial sale, as well as large‑scale hydrogen offtakers and industrial gas distributors requiring low‑cost, low‑carbon feedstock.
Features
- Deep‑sea pressure‑driven AEM electrolyzer with proprietary salt‑resistant catalyst layers for direct seawater feedstock
- Integrated oxygen energy recovery system that converts high‑pressure O₂ to supplemental electricity, lowering net grid consumption
- Built‑in 300 bar hydrogen compression achieved by ambient hydrostatic pressure, removing the need for external compressors
- Modular offshore platform architecture compatible with existing oil‑rig or wind‑farm infrastructure, enabling rapid deployment
- Low‑energy consumption electrolyzer design delivering the industry’s lowest specific electricity demand (kWh/kg H₂)
- Seamless integration with renewable offshore generation (PV, wave, wind) via IEC‑61850 compliant power interface
- End‑to‑end monitoring and control software with real‑time performance analytics and remote diagnostics