Sea Applications

Applications

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Subsea Persistence: Air-Independent Energy for Autonomous Underwater Vehicles

Extending underwater mission endurance from hours to weeks with silent, high-density fuel cell power plants built for the deep ocean.

Overcoming the Endurance Gap

True autonomy for Unmanned Underwater Vehicles (UUVs) and Autonomous Underwater Vehicles (AUVs) has long been constrained by power. Traditional lithium battery systems suffer from severe energy density limitations, restricting underwater drones to short-range transits and shallow, brief mission profiles.

Developing long-duration UUVs capable of multi-week or multi-month independent operation is a critical priority for defense, commercial oil exploration, and oceanographic research. Infinity’s air-independent fuel cell systems decouple power generation from reactant storage, allowing energy capacity to scale seamlessly with custom reactant tanks. This delivers the extreme energy density required to achieve true, untethered vehicle autonomy.

Core Applications

1. Defense & Naval Intelligence Operations

The Mission: Supports tactical surveillance, anti-submarine warfare, and underwater scouting missions with a completely silent acoustic profile that evades detection while streamlining military logistics.

2. Commercial Off-Shore Oil & Gas Exploration

The Mission: Enables untethered, deep-sea pipeline inspections, bathymetric surveying, and structural monitoring of seafloor wellheads without requiring an expensive, carbon-intensive surface mother ship to stay continuously tethered overhead.

3. Long-Duration Oceanographic Research

The Mission: Allows scientific research groups to launch autonomous drones for multi-thousand-kilometer transits to map marine ecosystems, track deep-current thermal variations, and monitor oceanic health indicators over months of uninterrupted data collection.

Subsea Persistence

Sea Applications

Subsea Persistence: Air-Independent Energy for Autonomous Underwater Vehicles

Extending underwater mission endurance from hours to weeks with silent, high-energy- density fuel cell power systems engineered for deep-ocean operations.

Overcoming the Endurance Gap

Long-duration autonomy for Unmanned Underwater Vehicles (UUVs) and Autonomous Underwater Vehicles (AUVs) has historically been constrained by available onboard energy. Traditional lithium battery systems are limited by energy density, often restricting underwater vehicles to shorter mission durations and reduced operational range.

Developing long-duration UUVs capable of operating independently for weeks or months is an important objective across defense, offshore energy, and oceanographic research sectors. Infinity’s air-independent fuel cell systems separate power generation from energy storage, allowing mission endurance to be expanded through scalable reactant storage solutions. This approach provides the high energy density required for extended-duration, untethered underwater operations.

Our Advantage

Infinity’s air-independent fuel cell technology provides significantly greater mission endurance than conventional battery-powered systems while maintaining quiet operation and flexible energy storage capacity. By leveraging decades of experience in aerospace and subsea fuel cell development, Infinity delivers reliable power solutions for the world’s most demanding underwater environments.

Operations Across Defense, Energy & Research

Defense & Naval Intelligence Operations

Supports tactical surveillance, anti-submarine warfare, and underwater reconnaissance missions with a low acoustic signature, helping reduce detectability while simplifying mission logistics. Extended mission duration allows larger assets to deploy AUV’s from a distance without being restricted to a narrow range.

Commercial Offshore Energy Operations

Enables untethered deep-sea pipeline inspections, bathymetric surveying, and subsea infrastructure monitoring while reducing dependence on continuously stationed surface support vessels.

Long-Duration Oceanographic Research

Enables scientific organizations to deploy autonomous underwater vehicles for extended missions that map marine ecosystems, monitor ocean conditions, and collect valuable environmental data over long durations.