Structural engineering expertise for major vessel modifications

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At GLO Marine, we provide advanced structural engineering services for vessel modifications, conversions, and offshore mobilizations worldwide.

With a core engineering hub at the Black Sea, in Constanța, Romania, we support shipyards, EPC contractors, and offshore operators across Europe, the Middle East, Asia, and the Americas.

Our multidisciplinary team combines technical precision, class compliance, and practical fabrication insight to ensure that every modification delivers both structural integrity and operational efficiency.

structural expertise for major vessel modifications

Our structured engineering approach

1. Concept Review

Every successful project begins with understanding feasibility.
We define key integration points, assess potential risks, and align technical solutions with client requirements, vessel constraints, and classification rules.

2. Basic Design

We develop optimized structural layouts using advanced FEM/FEA analysis, ensuring minimal hull impact while achieving full compliance with class and safety standards.

3. Detailed Design

Our team delivers production-ready drawings, 3D models, and installation details for critical ship areas — including foundations, reinforcements, and grillage systems — ensuring accuracy and ease of fabrication.

4. Installation Support

During the mobilization or modification phase, our engineers provide on-site technical support to ensure smooth installation, commissioning, and testing — reducing rework, downtime, and cost.

Balancing local and global loads - Engineering complex structures

Balancing global and local loads

Structural engineering for vessel modifications requires balancing how new installations interact with the ship’s structure. Our engineers consider both global hull responses and localized stresses, evaluating:

  • Hull girder bending, shear, and torsion under global loads.
  • Environmental and operational effects: wave motion, wind, ice, or snow accretion.
  • Equipment and foundation load transfer through grillage structures.
  • Safety and functionality: access, fire protection, and HVAC systems.

This integrated approach ensures every vessel remains safe, efficient, and class-approved, no matter the scale of modification

 Structured engineering approach

Engineering that performs — worldwide

From concept to commissioning, GLO Marine combines structural expertise with global project experience to deliver results that meet international standards and exceed client expectations.

We’re proud to serve clients across global shipbuilding and offshore markets, delivering engineering that performs at sea — wherever you operate.

Let’s talk about your next vessel modification

At GLO Marine, we understand that every vessel modification is unique — and every project demands the right balance between innovation, safety, and efficiency.

Whether you’re planning a structural upgrade, an offshore mobilization, or a major equipment integration, our engineering team is ready to support you from concept to commissioning.

Let’s discuss how our global structural engineering expertise can help you achieve class-compliant, cost-efficient, and installation-ready results for your next project.

Contact us today to start your engineering journey with GLO Marine — where precision meets performance, worldwide.

Myths & misconceptions about ship retrofits: Global solutions for a decarbonised future

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The shipping industry is navigating one of its greatest transformations. With stricter IMO decarbonisation targets on the horizon and charterers demanding greener operations, time is critical for shipowners. Retrofits are one of the most effective ways to extend vessel lifespan, improve efficiency, and keep fleets competitive — yet misconceptions continue to slow adoption.

At GLO Marine, we deliver turnkey retrofit and conversion projects worldwide. Our dedicated on-site teams travel across the globe, ensuring efficient, high-quality upgrades no matter where your vessel operates.

Often misunderstood, retrofits are seen as inconvenient, costly, or even unnecessary. In reality, they are one of the most effective ways to:

  • Extend vessel lifespan
  • Improve fuel efficiency
  • Strengthen fleet competitiveness
  • Support global decarbonisation

Unfortunately, persistent myths discourage shipowners and operators from unlocking their full potential. Let’s clear up three of the most common misconceptions.

Myth 1: “Retrofits are only about compliance”

Yes, compliance with IMO and regional regulations is an important driver. But focusing only on that misses the bigger picture. Retrofits deliver measurable operational and environmental benefits:

  • Hull & propeller optimisation → reduced fuel consumption
  • Energy management systems → optimised onboard power use
  • Digital monitoring → predictive maintenance & fewer unplanned outages
  • Structural modifications & energy-saving technologies → extended vessel life by up to 10–15 years

 

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Bottom line: retrofits aren’t just about compliance; they’re a smart way to future-proof your fleet.

Myth 2: “Retrofits are disruptive and not worth the hassle”

The belief that retrofits mean long, costly dock times is outdated. With careful planning, engineering, and scheduling, disruption is minimized.

Modern approaches such as pre-fabrication, modular installations, and phased work allow vessels to return to service quickly—delivering upgrades that improve performance and support decarbonisation.

 

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Myth 3: “Newbuilds are the only path to future-proofing”

Newbuilds may dominate headlines, but targeted retrofits can often deliver 10–15 more competitive years to existing vessels—at a fraction of the cost of a newbuild.

This makes retrofits both a practical investment today and a strategic step toward long-term competitiveness and sustainability

Why retrofits are a strategic investment

Delaying upgrades:

  • Makes compliance harder
  • Raises operational costs through higher fuel use
  • Slows your path toward decarbonisation

Every year counts. Retrofits are not just about staying compliant—they are about boosting vessel performance, cutting emissions, and safeguarding long-term asset value.

GLO Marine: Your global retrofit partner

Unlike many engineering firms limited to one region, GLO Marine operates worldwide. Our on-site teams provide hands-on project execution across Europe, Asia, the Middle East, and beyond — bringing Romanian engineering expertise to the international stage.

  • Global coverage: On-site delivery wherever your fleet operates
  • Proven expertise: 130+ retrofit projects completed internationally
  • Turnkey approach: From engineering design to commissioning and operational support
  • Sustainability focus: Helping shipowners actively contribute to IMO and EU decarbonisation goals

Ready to act?

Retrofits are not just about keeping up with regulations. They are about future-proofing fleets, cutting emissions, and staying profitable in a fast-changing maritime landscape.

Whether your vessels operate in Europe, Asia, the Americas, or the Black Sea, GLO Marine’s global on-site teams ensure that retrofit projects are delivered efficiently, effectively, and with measurable impact.

Contact GLO Marine today and let us help you unlock the true potential of retrofits — wherever your fleet sails.

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Air Lubrication Systems (ALS): Driving fuel efficiency and compliance in global shipping

Air Lubrication Systems (ALS)- Driving fuel efficiency and compliance in global shipping

Shipping companies worldwide are racing against time to meet decarbonization targets and comply with the IMO’s CII framework. One of the most promising retrofit technologies leading this transformation is the Air Lubrication System (ALS). Already installed on a wide range of vessels, from cruise ships and LNG carriers to container vessels and ro-ro ships, ALS technology consistently demonstrates fuel savings of 5–10%, reduced CO₂ emissions, and lower maintenance costs thanks to decreased hull friction and biofouling.

Why Air Lubrication Systems are gaining global momentum

The shipping industry faces increasing pressure to cut greenhouse gas emissions and reduce operational costs while maintaining competitiveness. ALS technology directly addresses these needs by enhancing energy efficiency and ensuring regulatory compliance across different vessel types and trading routes.

Key benefits of ALS for shipowners and operators

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  • Fuel efficiency: By reducing friction between the hull and seawater, vessels maintain service speed with less engine power. Depending on the vessel type and operating profile, operators typically achieve fuel savings of 5–10%, which translates into substantial OPEX reductions across the fleet.
  • Environmental compliance: Lower fuel consumption directly reduces CO₂ emissions. Many ALS installations report 1–3%+ carbon reductions, contributing to IMO 2030 and CII compliance while strengthening sustainability credentials in a market increasingly driven by ESG factors.
  • Hull protection & longevity: Air bubbles form a protective layer between the hull and seawater, significantly reducing corrosion and biofouling. This lowers the frequency of dry-dock maintenance, extends hull coating lifespans, and improves vessel availability.
  • Strong economic return: While ALS requires upfront CAPEX, the combination of long-term fuel savings, reduced maintenance, and avoidance of non-compliance penalties delivers a compelling ROI for shipowners and fleet managers.

Selecting the right ALS technology

Not all ALS solutions are equal. Providers differ in design approach, energy demand, sensitivity to sea states, and resilience to minor groundings. Choosing the right system depends heavily on vessel type, operating speed, and draft.

At GLO Marine, we provide end-to-end solutions, including engineering guidance to help owners evaluate options and select the most suitable ALS technology for their fleet profile and operational requirements.

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Engineering challenges in ALS retrofit projects

Successful ALS implementation goes beyond choosing a vendor. It requires careful vessel modifications across multiple disciplines:

  • Hull modifications – installation of nozzles, penetrations, and localized reinforcements.
  • Machinery spaces – compressor foundations, ventilation upgrades, and layout adjustments.
  • Piping systems – addition of air distribution lines and integration of cooling water connections.
  • Electrical & automation – power load balancing, switchboard updates, and integration of ALS controls.
  • Regulatory compliance – revised General Arrangement (GA), updated EEXI/CII documentation, and safety assessments.

These adjustments require a coordinated, multidisciplinary approach to safeguard vessel integrity and guarantee maximum efficiency.

How GLO Marine Supports ALS Installations

With global experience in ship retrofits and decarbonization technologies, GLO Marine brings together its hull, piping, electrical, automation, and commissioning teams to deliver seamless ALS retrofit projects. From feasibility studies and engineering design to installation support and commissioning, we ensure every ALS installation achieves its promised performance and contributes to sustainable shipping.

Future-proofing your fleet with ALS

As regulators tighten emissions requirements and fuel costs remain volatile, ALS offers a proven, scalable pathway for shipowners looking to boost competitiveness while aligning with decarbonization goals.

At GLO Marine, we don’t just deliver engineering—we deliver confidence in performance, compliance, and ROI.

Ready to explore ALS retrofits for your fleet? Discover how the decarbonisation plan developed by GLO Marine, can help you navigate regulatory challenges, reduce emissions, and turn compliance into a competitive edge. Explore the full details here and start charting your roadmap to a greener future today.

DOWNLOAD OUR DECARBONISATION ROADMAP

Insights from our team: 7 years at GLO Marine

7 years together: Stories from our first three team members

People at the Core of GLO Marine

At GLO Marine, people are at the heart of our work. This summer marks seven years since Teodora Ionescu, Silviu Munteanu, and Gabriel Cardaș joined the company, three colleagues who have been with us since the very beginning.

Their stories are about starting something new, learning along the way, and growing together in the maritime industry.

Teodora Ionescu – Office Manager

For seven years, Teodora has been a steady hand in keeping operations organised, managing finances, handling documents, and supporting the team.

“My start at GLO Marine was truly challenging,” she recalls. “It pushed me out of my comfort zone and encouraged me to expand my professional experience. I learned and did things I hadn’t done before, which helped me grow from the very first day.”

The value of making a difference

Today, she finds meaning in knowing that her work supports the entire team:

“What I enjoy most is knowing that my contribution helps create an organised, harmonious work environment. That sense of making a difference is very rewarding.”

When asked what makes GLO Marine stand out, she says:

“The openness to people and new ideas. Everyone’s voice matters, no matter the role. The company genuinely invests in professional development and has a culture built on respect, transparency, and sincere collaboration.”

Silviu Munteanu – IT Engineer

Silviu manages our IT infrastructure, from networks and servers to software and digital tools, making sure everything runs securely and efficiently.

“From the very beginning, I felt a real sense of excitement,” he says. “I joined a professional, open team with great energy.”

Advice for newcomers

The challenges and teamwork keep him motivated:

“I enjoy having real challenges and working alongside people who know their stuff, but who also bring a positive vibe to everything we do.”

His advice for those starting at GLO Marine:

“Be open, get involved, and don’t hesitate to ask questions. This is the right place to learn, grow, and truly feel part of a team.”

Gabriel Cardaș – Project Manager Engineering

Gabriel’s role blends engineering and project coordination, ensuring deadlines are met and communication flows between Class, suppliers, and subcontractors.

“I would say my start was unexpected,” he remembers. “I was recruited right after my internship and invited to continue working part-time.”

Memories built with people

For Gabriel, the variety keeps the work fresh:

“Everything I do brings its own challenges and unique details, which keeps the work interesting.”

His most valuable memories are about the people:

“I can’t choose just one – it wouldn’t be fair to all the other moments. What stands out the most is the people. Many colleagues became friends, and we’ve shared not only hard work but also laughter, sometimes until we were completely out of breath.”

Looking ahead

Why people make the difference in maritime engineering

The experiences of Teodora, Silviu, and Gabriel show that longevity in a company isn’t just about the projects you work on. It’s about shared values, support, and learning together.

At GLO Marine, our work in maritime engineering succeeds because of the people who make it happen – steady, skilled, and committed to moving forward as a team.

Whant to join our team? Check the latest job availability here. 

Program management in ship retrofit: How GLO Marine turns complexity into predictability

ship retrofit program management

Ship retrofits aren’t just technical. They’re logistical, operational, and intensely time-sensitive. Unlike newbuilds with long planning horizons, retrofit projects face compressed schedules, evolving scope, and high operational pressure.

To meet these demands at scale, GLO Marine developed a tailored program management system—one that transforms complexity into predictability, even across 20+ projects per year, on five continents.

Why retrofit demands more than project management

Retrofitting a vessel is a high-stakes operation. You’re balancing:

  • Tight dry-dock availability
  • Long-lead OEM deliveries and customs clearance
  • Regulatory approvals mid-project
  • Onboard realities that often change scope during execution
  • Multi-country coordination across time zones and supply chains

A traditional project management approach just isn’t enough. What’s needed is a program-level framework that integrates engineering, procurement, logistics, and site execution into one cohesive flow.

The GLO Marine approach: Built for speed, designed for scale

At GLO Marine, our retrofit methodology is based on unifying all disciplines involved (technical, operational, and commercial) into a synchronized system. It’s agile enough to adapt to scope changes, yet structured enough to ensure repeatable outcomes, even under intense time pressure.

This isn’t about managing tasks—it’s about managing outcomes.

Each project benefits from centralized planning, fast communication loops, clear accountability, and proactive coordination with shipyards, clients, and classification societies.

Expertise from the field: Dan Marin’s view on retrofit precision

“In retrofit, every day counts. You don’t have the luxury of buffers. You need a system that moves fast and a team that communicates constantly.”
Dan Marin, Operations Manager, GLO Marine

With over two decades of experience in large shipyards like Daewoo, Dan helped shape GLO’s unique program model—one focused on quality delivery with minimal disruption, regardless of project size or geography.

A real-world example: Tidewater’s BWTS retrofit program

GLO Marine is currently executing a global ballast water treatment system (BWTS) retrofit program for Tidewater, the world’s largest offshore support vessel operator. Together with VMS Group, we’re managing 22 vessel upgrades across three continents.

Key results:

  • All engineering packages delivered ahead of schedule
  • Zero installation errors to date
  • Estimated 10–15% cost savings per vessel via centralized planning
  • Fully integrated execution across engineering, logistics, and site teams

This is program management in action—not one-off projects, but a production-like model that scales.

From complexity to confidence

GLO Marine’s retrofit program system delivers:

  • Predictable timelines in unpredictable environments
  • Integrated procurement and delivery flows
  • Faster, more coordinated execution on board
  • Lower cost through smarter material consolidation
  • Repeatable success across vessel types and locations

Because in retrofit, time isn’t just money—it’s uptime.

Book a retrofit strategy call

Ready to scale your retrofit program with confidence?
Book a call with our retrofit specialists and discover how GLO Marine can streamline execution for your fleet—no matter the size, scope, or geography.

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Tackling complexity: A full engine room retrofit for a multi-purpose vessel

engine room retrofit

At GLO Marine, we have always welcomed engineering challenges, but some engine room retrofit projects stand out for their scale, complexity, and the transformation they deliver. Last year, we took on one of the most ambitious vessel modernisation projects.

For an established client in Romania, we are currently delivering a comprehensive turnkey retrofit of a 1976-built vessel, with the scope focused on the complete renewal of the engine room.

This includes the full replacement of all existing equipment and systems within the engine room, with the boiler room encompassed as an integral part of this space. The primary emphasis is on modernizing and upgrading the entire engine room infrastructure to optimize it’s performance, safety, and efficiency standards.

What makes this project different?

Unlike traditional engine room retrofit projects that rely on partial integration of new systems into existing infrastructure, this time we are carrying out a complete strip-out and replacement of outdated equipment and systems, including the main engines, with fully modernised, high-performance, and energy-efficient equipment tailored to the vessel’s new operational profile.

It is a full-scale transformation that brings together GLO Marine’s integrated expertise across engineering, procurement, fabrication, and installation. The project spans over 14 months and is structured in four major phases:

Project roadmap

  1. Basic and detailed engineering
  2. Removal of existing onboard equipment
  3. Procurement and material supply
  4. Fabrication, installation and commissioning of new systems

Feasibility-first: technical advisory from day one

From the very start of the project, we worked closely with the client to shape the most efficient engine room retrofit strategy, providing early-stage technical consultancy and feasibility support.

We advised on equipment selection, material specifications, and accessory compatibility, ensuring optimal alignment between system functionality, vessel design, and future operating requirements.

Current status: progress and next steps

To date, we have completed over 90% of the basic engineering scope. In the coming two weeks, we begin detailed engineering to allow for all new pipe routing, equipment positioning and creating a new digital model of the entire compartment by use of Cadmatic software. We will be focusing on layout redesign, equipment integration, and system compatibility.

In parallel, our teams have spent the last four months dismantling and clearing the outdated equipment. This complex task is now reaching completion, marking this important milestone where precise 3D Scan will be done to achieve the digital twin model of the entire engine room compartment.

 What’s next: full system fabrication and installation

A stretch goal, by end of 2025: fabrication of all piping, equipment foundation and other adjacent components followed by installation onboard to restore the functionality of the vessel. The final stage of the modernisation process will reflect our commitment to future-ready vessel solutions, even in the most technically demanding environments.

At GLO Marine, every engine room retrofit is more than a task—it’s a transformation. This full engine room renewal is a testament to our end-to-end vessels upgrade capabilities and collaborative approach.

Curious how we deliver complex engine room retrofits across sectors?

Explore more GLO Marine projects and discover how we bring future-ready engineering to life.