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Marine batteries, power conversion, power management systems & vessel efficiency solutions

Energy and power systems deliver the electrical and hydraulic capabilities that sustain long-duration ocean missions and remote subsea operations. From renewable energy harvesting to advanced power storage and distribution, these systems support continuous performance under demanding conditions. This category features manufacturers of underwater batteries, power management modules, energy harvesting technologies, and charging systems optimized for autonomous and crewed marine platforms.

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11 Leading Suppliers

Denchi

Advanced Battery Systems for AUVs, UUVs & Subsea Energy Storage

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Platinum Partner

SCIO Technology

Germany

Innovative SCIO Brick® Battery System for Maritime Crewed & Uncrewed Vessels, and Infrastructure

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Gold Partner

Kraken Robotics

Canada (5 locations)

Industry-Leading Underwater Imaging and Power Solutions for Demanding Professional Survey Applications

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Gold Partner

SubCtech

Germany

Marine Monitoring Systems for Surface & Underwater Vessels | Advanced Power Solutions for Subsea Vehicles

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Gold Partner

Aegis Power Systems

USA

Rugged Power Supplies and Converters for Marine & Naval Systems

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Silver Partner

Storm Technologies

UK (5 locations)

Secure IT Infrastructure & Technology Solutions for Maritime Operations

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Silver Partner

Eberspaecher Vecture

Canada

Battery Management Systems (BMS) for Marine & Offshore Applications

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Silver Partner

Cetasol

Sweden

Intelligent AI-Powered Decision Support for Fuel Savings & Vessel Performance Tracking for Sustainable Maritime Operations

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Silver Partner

Dynautics

Marine Vehicle Management Technologies: Marine Autopilots, Remote Control Systems, and Simulation Solutions

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Silver Partner

DeepSea Power & Light

USA

Robust and Reliable Underwater Cameras and Lighting Equipment

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Unclaimed

Enix Power Solutions

France

Batteries & Battery Packs for Marine, Subsea & Oceanographic Applications

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Unclaimed

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19 Cutting-edge Solutions

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Custom Marine Batteries

Bespoke battery systems for subsea & hybrid-electric maritime platforms

...ver dependable power for offshore and subsea operations, built to withstand punishing environments... ...chi’s custom energy storage enables seamless integration into marine and subsea...

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BB-2590 Smart Battery

Rugged smart battery for tactical & marine electronic systems

...bling flexible power provisioning for diverse mission-critical systems, including unmanned marine... ... offers a high energy density of 302.4Wh and operates across an extreme temperature range from...

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SeaPower Batteries

Scalable high energy density subsea batteries for enhanced mission endurance

...market-leading energy density and endurance, and are designed as a modular and scalable capability... ...gether to form power banks of up to 5 MW, and the Kraken Fast Charger allows up to nine batteries to...

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Diagnosis & Charge Unit (DCU)

Rugged recharge unit with integrated ESS diagnostics

...U) is a mobile energy storage solution purpose-built for rapid, reliable recharging of Battery... ...a total charge power of up to 170 kW, allowing efficient parallel recharging at approximately 13 kW...

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Converter Skid (Power Skid PS)

Robust Subsea Power Skid with Integrated OPM

...onverter Skid (Power Skid PS) is a robust subsea power skid engineered to provide reliable,... ...dvanced Output Power Module (OPM) that ensures stable voltage regulation and efficient energy...

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Battery Storage Skid (BSS)

Advanced Marine-Grade Energy Storage System

...s a ruggedized energy storage system engineered for demanding subsea and offshore applications,... ...ons and output power levels, this system serves critical underwater instrumentation, AUV docking...

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Standard Subsea Batteries

Rechargeable Li-ion batteries for marine vehicles & equipment

...ng ROV and AUV power supplies, as well as for buoys and diving equipment. They can be charged...

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BW2901

Compact AC-DC power conversion for naval electronics

...d 24 or 28 VDC power to shipboard communications, control, sensing and embedded-computing equipment....

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NRA301

4.5 kW three-phase rectifier for shipboard power systems

... and shipboard power-distribution architectures. It accepts 120/208 VAC, 60 Hz input and provides...

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CWA003

Redundant multi-output AC-DC power conversion for marine electronics racks

...is designed to power VME and other multi-voltage electronics in naval racks. It accepts single-phase...

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VPX2703UC500-SA

SOSA-aligned 3U VPX conversion for high-voltage DC architectures

...vide a managed power layer for modular radar, electronic-warfare, autonomy and undersea-processing...

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Eaton 9PX3000IRTM

Rackmount UPS protection for maritime IT systems

...ninterruptible power supply designed to support servers, networking equipment, and other critical...

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APC SURTD3000XLIM

Resilient UPS protection for maritime IT infrastructure

...ninterruptible power supply developed to provide dependable backup power for servers, network...

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IQ HV

Distributed BMS systems with central & module controllers & a high-voltage monitor

IQ HV is the distributed Battery Management System (BMS) offering within the GuardIon-IQ™ platform...

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IQ Power

High-current BMS with power sensing modules (100 A / 200 A / 300 A)

The IQ Power (V04306) is a compact Battery Management System (BMS) controller for integrated packs... ...ugh the V07043 Power Sensing Module family, with 100 A, 200 A, and 300 A options available. The...

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IQ Prime

BMS for small-to-medium packs with onboard MOSFETs

The IQ Prime (V04309) is a compact Battery Management System (BMS) designed for cost-sensitive small...

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IQ Pro

BMS for medium-to-large packs with external contactors

...ng whether the power path has switched as commanded. Redundant charge, discharge, and short-circuit...

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iHelm

Intelligent AI-powered energy optimization and decision support for the entire fleet

...rs to optimize energy use, reduce costs, and improve sustainability. It provides real-time... ...... to modify settings as required and receive real-time updates on total energy or fuel...

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Power Management Systems

Remotely limit & control power consumption for unmanned missions

...remotely limit power consumption for non-essential tasks and channel power into critical operations... ...ts can provide power to navigation lights, sensors, instruments, modems and even the SPECTRE unit...

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If you design, build or supply Energy & Power, create a profile to showcase your capabilities and connect with visitors who have an active requirement for your solutions.

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Lithium-Sulfur Battery Cells Pass 1,000-Meter Pressure Tests for UUVs

Li-S Energy's lithium-sulfur battery cells have demonstrated stable voltage and no physical damage during repeated simulated 1,000-meter dives, supporting further evaluation with MSubs for propulsion systems in extra-large uncrewed underwater vehicles

Nov 10, 2026

First Brazilian-Built Hybrid Supply Vessel Joins ABS Class

Brazil delivers its first domestically built hybrid platform supply vessel to ABS class, pairing deck-mounted lithium batteries with renewable fuel readiness to support Petrobras offshore logistics while reducing operational emissions

Oct 21, 2026

Offshore Electrification Project Concludes Without Second Compressor

The Troll licence partnership has decided to conclude its offshore electrification project without installing a second export compressor, safeguarding vital European gas supplies while achieving substantial annual carbon emissions reductions

Oct 21, 2026

Aegis Power Systems Joins OST with Rugged Marine & Naval Power Conversion Solutions

Aegis Power Systems brings over 30 years of expertise in rugged power electronics, delivering marine-grade power supplies and converters for naval vessels, subsea systems, marine electronics and electric propulsion

Oct 16, 2026

Floating Offshore Wind Platform Redesign Supports Next-Gen 18MW Turbines

Gazelle Wind Power has engineered a breakthrough floating platform design capable of supporting 18MW+ turbines in extreme offshore conditions while reducing capital expenditure and lifetime energy costs by over half

Sep 25, 2026

Verlume & SubCtech Partner to Advance Integrated Subsea Power Architecture

Strategic agreement unites intelligent power management with high-performance subsea battery technology to target offshore energy and defence markets

Sep 22, 2026

Electrified Compressor Fleet Deployed to Decarbonize Offshore Operations

To help offshore operators balance strict decarbonization targets with operational demands, James Fisher has launched a Stavanger-built fleet of 25 electric compressors engineered to drastically reduce emissions and fuel expenditures

Sep 21, 2026

Tulip Tech Extends Lobster Robotics Underwater Drone Endurance

Tulip Tech developed a high-density battery pack that gives Lobster Robotics approximately 60% more battery life without meaningfully increasing drone size

Sep 01, 2026

Suction Sail Installed on Wind-Powered Multipurpose Cargo Vessel

The completion of a 22-meter bound4blue eSAIL installation on the Na Hiro E Pae marks a breakthrough for multipurpose vessels, combining modern suction sail technology with regional connectivity across French Polynesia

Aug 11, 2026

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