ABB selected to provide power system for Spanish Navy submarine rescue ship


According to information published by ABB on November 27, 2023, the firm has been chosen to provide a DC-based power and distribution system for the Spanish Navy's new submarine rescue vessel, the Poseidon.
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Russian Vyborg Shipyard laid the Purga ice class coastguard ship of project 23550 925 001 Artist rendering of the future submarine rescue vessel Poseidon. (Picture source: ABB)


The delivery of this vessel is scheduled for 2026, and it represents the first of its kind to be equipped with such a system. The Poseidon will be tasked with various submarine missions, including diving operations, submarine rescue, and underwater surveillance.

ABB’s supply scope for the Poseidon includes the Onboard DC Grid, transformers, alternators, a battery system, and the PEMS power and energy management system. These components aim to fulfill the Navy's requirements for dynamic positioning, position keeping, system reliability, and redundancy.

The Onboard DC Grid is intended to enhance efficiency and flexibility for the vessel's operations, with the battery system designed to manage peak power demands during rescue missions. Additionally, the power and energy management system is expected to optimize the use of the vessel’s power resources.

This contract with ABB also provides the Spanish Navy access to ABB’s global service network, which offers support throughout the vessel’s lifecycle. As environmental regulations evolve, the Poseidon’s power system, including the Onboard DC Grid, is expected to be adaptable for integrating future energy sources.

Technical data

The Submarine Rescue Ship, designed to accommodate a crew of 60, spans 91 meters in length and 19 meters in width, with a draft of 5.1 meters. She has a total displacement of 5000 tons and is powered by an electric propulsion system.

This vessel can achieve a top speed of 15 knots, with its economical cruising speed varying between 9 to 14 knots. She boasts a range of 2400 nautical miles when traveling at 15 knots. The ship is also outfitted with 3 RHIBs (Rigid Hull Inflatable Boats) for a variety of operations and includes a flight deck for additional operational capabilities.