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Marine Electrical Power, Automation and Engineering Solutions

MJR Power & Automation is a UK based marine electrical engineering company delivering integrated power, automation and control systems for vessels, offshore assets, ports and renewable energy projects.

Discover the clients and projects behind MJR’s engineering experience.

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Download Reference List
Services

Every Stage of Marine Electrical Engineering. One Specialist Team.

From marine electrical design consultancy and engineering through construction, installation, commissioning, repair and testing, MJR supports the complete project lifecycle for newbuild, retrofit and upgrade projects.

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Consultancy & Design

Marine electrical design, FEED studies, calculations and system engineering developed around vessel, offshore and project requirements.

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Engineering & Construction

Integrated electrical power, switchboard, control and automation systems engineered, built and tested for demanding marine and offshore applications.

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Installation & Commissioning

Marine electrical installation, onboard integration, vessel commissioning and functional testing through to technical handover.

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Service, Repair & Testing

Marine electrical service, fault-finding, repair, testing, retrofit and lifecycle support for vessels and offshore assets.

Solutions

Integrated Marine Power & Automation Solutions for Complex Offshore Challenges.

MJR combines marine power, propulsion, automation, energy storage and control engineering into integrated solutions for vessels, ports, offshore assets and subsea operations.
Each solution is developed around operating requirements, system interfaces, installation constraints and the wider project lifecycle.

Marine Propulsion

Electric and hybrid marine propulsion systems, drive integration and retrofit engineering for working vessels.

Energy Storage

Marine battery energy storage and BESS integration for hybrid vessel power, peak-load support and electrification.

Hybrid Power

Integrated generator, battery, drive and control architectures engineered around vessel operating profiles.

Subsea Power & Control Systems

Integrated subsea power and control systems for ROVs, trenchers and specialist subsea equipment.

Automation & Control

Marine automation systems including PLC, DCS, AMS, power management, alarms, monitoring and vessel control.

Power Generation & Distribution

Marine power generation, switchboards, protection, distribution and vessel power management systems.

Modular Offshore Power

Containerised power systems engineered for modular, temporary and project-specific offshore power requirements.

Our Sectors

Marine & Offshore Expertise Across Every Operating Environment.

Electrical requirements change significantly by vessel, asset and operating environment. MJR applies specialist marine electrical engineering, power and automation capability across six core marine and offshore sectors.

Commercial Marine

Electrical power, automation, propulsion and lifecycle support for workboats, ferries, fishing vessels and specialist commercial craft.

EXPLORE SECTOR
EXPLORE SECTOR

Offshore Wind

Offshore wind electrical engineering, vessel charging, hybrid power, automation and electrical systems for CTV, SOV and offshore operations.

EXPLORE SECTOR
EXPLORE SECTOR

Ports & Harbours

Shore power systems, electrical distribution and vessel charging infrastructure for ports, harbours and marine facilities.

EXPLORE SECTOR
EXPLORE SECTOR

Shipyards & Newbuilds

Marine electrical design, engineering, construction, installation and commissioning support for vessel newbuild programmes.

EXPLORE SECTOR
EXPLORE SECTOR

Offshore Construction & Subsea

Offshore and subsea electrical systems, modular power, drives, automation and control for specialist vessels and subsea equipment.

EXPLORE SECTOR
EXPLORE SECTOR

Oil & Gas / Offshore Platforms

Offshore electrical engineering, VSDs, switchboards, power distribution, testing, repair and retrofit support for platform assets.

EXPLORE SECTOR
EXPLORE SECTOR
Products

Engineering Products Built for the Demands of Marine & Offshore Operations

MJR’s product ecosystem combines marine automation, shore power, offshore charging and motion compensation technology with the engineering capability required to integrate each system into real marine and offshore projects.

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Marine Automation

VAMOS the marine automation platform for vessel control, alarms, monitoring, power management and operational visibility.

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Offshore Power & Charging

Offshore vessel charging and power-transfer technology for offshore wind vessels and remote marine operations.

VIeW PRODUCT
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Shore Power

QuayPower™ shore power systems providing integrated shore-to-ship electrical power for vessels in ports and harbours.

VIeW PRODUCT
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Motion Compensation

X-Wave™ active heave compensation technology for offshore lifting, launch and recovery, and subsea operations.

VIeW PRODUCT
Case Studies

Featured Marine Electrical Engineering Projects & Case Studies

Explore proven MJR delivery across marine automation, power distribution, switchboards, drives, propulsion, vessel upgrades and offshore electrical systems. Each case study documents the engineering challenge, project constraints, MJR scope, technical approach and approved project outcome.

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Pipelay Energy Storage System for TechnipFMC

Supercapacitor storage retrofitted to pipelay tensioner and winch drive systems.

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Stena Line Ballast System Controls

Ballast Control System Replacement — Installed In Service

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HydroPlow Mobilisation for Prysmian Monna Lisa

HydroPlow Spread Mobilisation — Port of Middlesbrough

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Van Oord – Upgrade and Installation of Kongsberg IAS System

Cable Installation for Kongsberg IAS System Upgrade

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VFD Switchboard Replacement for Downhole Pumps on Eni Douglas Oil Platform

VFD Switchboard Replacement for Downhole Pumps — Delivered in a Shutdown Window

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Hybrid Power Retrofit for Edison Chouest Offshore

AHTS Battery Hybrid Conversion — Switchboard Rebuild, PMS & Automation Replacement

News

Marine Engineering News, Projects & Technical Insight

Follow MJR project updates, company news and technical insight covering marine electrical engineering, automation, shore power, offshore vessel charging and vessel electrification.

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July 27, 2026
MJR Power & Automation and ELSYS Complete ABS-Approved Life Extension and Repowering of Specialist Research Vessel

MJR and ELSYS delivered a turnkey electrical, propulsion & automation modernisation for the vessel supporting the world’s only fully ocean-depth rated manned submersible.

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May 21, 2026
Industry coalition publishes recommendations to unlock offshore vessel charging

MJR Power & Automation has co-authored a cross-industry position paper on the final barriers to electrifying offshore vessels.

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March 11, 2026
Supporting Apprentices at MJR Power & Automation

Two of our apprentices share their experiences, what they've learned on the job, and why they'd recommend an apprenticeship in engineering.

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February 2, 2026
Industry coalition calls for clear framework to unlock offshore O&M fleet electrification in the UK

Industry leaders urge a clear UK policy framework to unlock electrification of offshore wind service vessels, focusing on charging access, design guidance, and commercial clarity.

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October 24, 2025
Connecting the Value Chain to Power Offshore Electrification

MJR and ELSYS delivered a turnkey electrical, propulsion & automation modernisation for the vessel supporting the world’s only fully ocean-depth rated manned submersible.

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September 24, 2025
Hands-on training with Danfoss iC7-Marine solutions for MJR engineers

Our engineering team recently attended training at the Danfoss Competence Center in Holmestrand, Norway, focusing on the latest iC7-Marine drive solutions for hybrid and electric propulsion systems.

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FAQ

Marine Electrical Engineering FAQs

Clear answers to common questions about MJR’s marine electrical engineering services, automation systems, project delivery and lifecycle support.

What does MJR Power & Automation do?

Which sectors does MJR support?

Does MJR support both newbuild and retrofit projects?

Where is MJR Power & Automation based?

What marine automation systems does MJR provide?

Can MJR support shore power and offshore vessel charging?

What marine electrical service and maintenance support is available?

How do I start a project with MJR?

Does MJR design and manufacture marine switchboards and control panels?