Navantia Installs AIP on S-80 Submarine: Cartagena (Spain), November 26th, 2024.- Navantia’s shipyard in Cartagena has achieved a significant milestone by completing the installation of a Hydrogen-based Air Independent Propulsion System (AIP) into an S80 class submarine. This marks the first installation of a third-generation AIP in a submarine. The event was attended by Spanish National Armament Director, Admiral Aniceto Rosique Nieto.
This technological advancement is a pivotal moment in the S-80 Programme, setting a new standard for shipbuilding in Spain. The AIP system will enable the Spanish Navy’s submarines to remain submerged for extended periods, surpassing the capabilities of conventional diesel-electric submarines. This innovative technology, a culmination of significant efforts by the national industry, positions Navantia as a global leader in submarine construction.
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Navantia’s S-80 Class Submarine’s AIP System.
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Navantia’s AIP System
Navantia‘s AIP system, branded as BEST (Bio-Ethanol Stealth Technology), is a cutting-edge energy production plant that allows the submarine’s batteries to recharge while submerged. By eliminating the need for frequent snorkel maneuvers, the submarine becomes less detectable and more secure. The system utilizes a bioethanol reforming process to generate hydrogen, which, combined with pure oxygen, powers a fuel cell to produce electricity.
Unlike previous AIP systems, Navantia’s third-generation technology does not require storing hydrogen onboard. Instead, it generates hydrogen on demand, enhancing the submarine’s tactical advantage, safety, and strategic autonomy. Additionally, the system contributes to crew safety and reduces operational personnel requirements.
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Participants in the event had the opportunity to inspect Section 3 of the S-83 Cosme García submarine, where the AIP equipment, liquid oxygen and bioethanol tanks, and auxiliary systems are housed. This provided a firsthand view of the complex engineering and safety procedures involved in submarine construction.
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Navantia’s S-80 Class Submarine.
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About Navantia
Navantia, a state-owned company, is a strategic technology player in Spain’s defense sector. With over 300 years of experience in shipbuilding, Navantia specializes in surface and submarine vessels, system design and integration, life cycle support, and high-value-added services. Navantia Seanergies, a subsidiary, focuses on offshore wind energy and other green energy solutions, including hydrogen. The company employs nearly 4,000 people across Spain, primarily in Ferrol, Fene, Puerto Real, San Fernando, Cádiz, Rota, Cartagena, and Madrid. Navantia is committed to sustainable practices and technological innovation, collaborating with governments, companies, universities, and research institutions worldwide.
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