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Subsea Energy Storage System

Monday, January 15 2024

General – Subsea Energy Storage

CTO, David Reid, said that NOV has developed a new subsea energy storage system.

The system enables the offshore industry to store liquid clean energy, such as ammonia or e-methanol, directly on the seafloor.

This technology can be used in a variety of applications, like power storage for offshore assets, offshore fuelling stations for ships, renewable energy storage with offshore wind turbines, or common storage of ammonia for fertilizer plants.

With the new subsea energy storage system, based on our membrane-based storage solution for oil and chemicals, it is possible to store liquid clean energy, such as ammonia or e-methanol, directly on the seafloor.

An example with a fixed platform with five 5,000 m³ storage units, gives a total storage volume of 25,000 m³. Energy storage with ammonia, given the density of ammonia, gives 19,000 tons of fuel. Each ton of ammonia gives 5,17 MWh of energy, if it is used as direct fuel. This gives a total power of 98,490 MWh, which will fuel a medium 60 MW platform for 68 days, before re-filling is needed.

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Filed Under: International News, NOV, subsea energy storage Tagged With: NOV, Subsea energy storage

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