Cut Fuel by Knowing Your Hull's True Condition.
A fouled hull is a fuel bill you can't see — drag rises, speed drops and your CII rating slips. Vesselity turns that blind spot into data: the Hull-Sight platform predicts which hulls are fouling and when, and a diver-free micro-ROV survey proves what's really down there. Clean the right hull at the right time — on evidence, not the calendar.
The AI reads a fouled hull — live, frame by frame
A real micro-ROV survey. As the camera flies the hull, Vesselity's AI segments and grades every patch of growth in real time — heavy fouling, minor fouling and coating damage — at over 98% accuracy. Not a diver's end-of-shift judgement: a measured, repeatable read of exactly what's down there.
Live AI fouling segmentation from a Vesselity micro-ROV hull survey · Source: Vesselity
You can't manage the drag you can't measure
Biofouling is the quietest of the performance losses. A film of slime, weed and barnacle on the underwater hull raises frictional resistance, robs speed and pushes fuel burn — and CO2 — up, often well before anyone schedules a look. Under the IMO's tightening regime, that inefficiency now shows up directly in a vessel's annual CII rating. Yet most fleets still clean on a fixed calendar — sending divers to hulls that don't need it, while others quietly burn fuel between dockings. Vesselity replaces the guesswork with a measured, fleet-wide picture of hull condition, so cleaning effort and budget land exactly where they cut the most fuel. Managed early, biofouling is one of the cheapest fuel levers a fleet has — getting on top of it can cut fuel consumption by up to about 8%.
The fuel penalty climbs fast with fouling
It isn't all-or-nothing. Even a thin film of slime adds drag, and it only gets steeper as weed and shell take hold — which is exactly why timing the clean matters.
- Light slime / microfouling — adds roughly +1–4% fuel
- Macrofouling (weed) — adds roughly +4–7% fuel
- Barnacles & hard shell — adds more than +8% fuel
Two halves of one performance loop
Hull-Sight looks ahead and tells you which hull to worry about. The micro-ROV survey goes down and proves it. Run them as one loop — or use either on its own.
Hull-Sight fouling analytics
A cloud platform that reads the data you already generate — AIS routing, sea temperature, biological conditions and speed — and turns it into a continuous, ship-by-ship biofouling-risk score across the whole fleet. No hardware to install; the model starts the moment the first vessel profile is entered.
Explore Hull-Sight →
Micro-ROV hull inspection
When a hull flags as high-risk, a 9 kg micro-ROV is flown from the quay, an anchorage or the vessel itself — no divers, no dry-dock. AI image segmentation classifies fouling and coating damage as it goes, and the survey can be delivered to certified In-Water Survey standard.
See the Inspection →Hull-Sight — schedule cleaning on data, not the calendar
The decision layer for hull performance: a fouling-risk engine that looks ahead, and a content-management system that keeps every inspection on record.
📈 Fouling-Risk Monitoring
Continuous, data-driven monitoring of fouling risk across the fleet — a hull quietly degrading is flagged before it shows up on the fuel bill.
🧭 AIS Routing Analysis
Vessel movement is analysed against sea temperature, biological conditions and speed — the variables that decide how fast a hull fouls in practice.
🗂️ Inspection Data Management
One home for every underwater survey: store footage, organise findings and keep a vessel's full inspection history in a single record.
🤖 AI Image Analysis
Automated analysis of inspection imagery classifies and quantifies fouling and surface condition — turning hours of video into structured, comparable data.
📝 Automated Reporting
Clean, consistent inspection reports without manual assembly — ready for technical managers, owners or a classification society.
⚓ Fleet-Wide Overview
See the whole fleet at a glance and drill into any vessel. Decide where the next clean or inspection goes on evidence, not instinct.
| Risk inputs | AIS routing, sea temperature, biological factors, vessel speed |
| Modelling | Advanced ship-profile specifications, per vessel |
| Inspection data | Content-management system for underwater survey data |
| Image analysis | AI classification of fouling & surface condition |
| Reporting | Automated, shareable inspection reports |
| Access | Browser-based — whole-fleet overview, no hardware |
Data in. Decisions out.
Hull-Sight sits quietly in the background, building a picture from data you already generate — and surfacing it the moment a hull starts to drift toward a costly state.
Ingest
Vessel routing (AIS), sea-temperature and biological data, speed and ship-profile specifications flow into the platform.
Model
The fouling-risk engine combines those inputs into a per-vessel risk score that updates as conditions and operations change.
Inspect & record
When a survey is warranted, the footage and findings are stored and analysed in the platform — building each hull's history.
Report & act
Automated reports support the cleaning decision and your compliance record — and feed back to sharpen the next prediction.
Better with inspection — but not dependent on it. Hull-Sight delivers value from operating data alone. Add the micro-ROV survey and the loop closes: real underwater evidence both informs the cleaning call and continuously calibrates the risk model.
Live in days, not months
Hull-Sight is a cloud platform — there is no hardware to install, and the risk model starts building from the moment the first vessel profile is entered. You do not have to commit the whole fleet to find out what it shows.
Scope your fleet
We agree which vessels to bring in first — typically the two or three that are highest-risk or due for a class survey.
Connect the data
The platform ingests AIS routing automatically from existing feeds, plus sea-temperature and biological data and your vessel-profile specifications. Typically live within a few working days.
See your first risk view
Within days you have a per-vessel fouling-risk picture that updates continuously — and every inspection you add, ours or your own, sharpens the model further.
See the hull's true condition — without a diver in the water
A safe, fast, diver-free survey that proves what the analytics predict — and, where you need it, satisfies class.
A 9 kg micro-ROV, in the water in minutes
A compact micro-ROV is launched from a quay, an anchorage or straight off the vessel — no diving spread, no dry-dock, no lost trading days. As it flies the hull, AI image segmentation detects and classifies biofouling and coating damage at over 98% accuracy: consistent and repeatable, not subject to a tired diver's judgement at the end of a shift.
- Safe — no personnel underwater, no diving risk to manage
- Fast — minimal mobilisation; deploy from port, anchorage or the ship
- Cost-efficient — up to 50% less than a conventional diver survey
- Objective — AI segmentation classifies fouling & coating damage consistently
- Class-ready — deliverable to certified In-Water Survey (IWS) standard
A clean hull is a low-carbon hull
Every percentage point of drag you keep off the hull is fuel you don't burn and CO2 you don't emit — and a better annual CII rating. Vesselity's job is to make sure that cleaning happens at the right moment on the right vessel: not too early (wasted yard cost), not too late (wasted fuel). Managed well, hull condition becomes one of the cheapest levers on a fleet's emissions.
Already accepted by class — more than once
The strongest evidence for diver-free inspection is that an independent classification society has signed one off. That has now happened.
A class survey carried out entirely by ROV
The flagship case was the Scandlines ferry Schleswig-Holstein on the Puttgarden–Rødby crossing between Germany and Denmark. Lloyd's Register awarded certification for an in-water survey conducted entirely by remotely operated vehicle — with no divers in the water — and the whole survey was completed in under four hours with a Blueye Pro micro-ROV.
"A landmark moment for classification and maritime digitalisation."— Lloyd's Register, on the remote ROV in-water survey
Scandlines' first class certificate without divers
Notably the Schleswig-Holstein uses Azipod pod propulsion with no propeller shaft — and that acceptance of a pod vessel was the regulatory novelty Lloyd's Register signed off. Scandlines Germany received its first ROV class certificate without conventional divers, using a 9 kg micro-ROV, and reported substantial savings versus a diver survey.
"50 percent and more costs saved compared to conventional divers."— Reported outcome, Scandlines Germany ROV survey
Case details as reported by Vesselity and partners — Lloyd's Register In-Water Survey, Puttgarden, 21 Sep 2023; Scandlines' first ROV intermediate class certificate, 26 Sep 2023. Certification was carried out by the respective classification society. Source: Lloyd's Register.
Built for the people who answer for fuel and compliance
If hull condition lands on your desk as a cost, a deadline or an emissions figure, Vesselity is built to make that part of the job easier.
Ship Owners
Protect asset value and fuel budgets by acting on fouling before it becomes an expensive, fleet-wide problem.
Fleet & Technical Managers
Plan cleaning and inspection across many vessels from one prioritised view instead of a stack of fixed schedules.
Ferry & Ro-Ro Operators
Keep tight, repeated schedules efficient — small drag gains compound fast on high-frequency routes.
Sustainability & Compliance
Back up CII and efficiency reporting with hull-condition evidence and a defensible cleaning rationale.
Vesselity — FAQ
How does Vesselity help vessel performance?
What exactly is Hull-Sight?
How accurate is the inspection, and what does it cost?
Can it satisfy a classification requirement?
Do I have to buy both the software and the service?
Who supplies Vesselity, and where?
Vesselity, in motion
Two short brand reels from the official Vesselity channel — an overview of the hull-performance mission rather than a step-by-step product demo.
Get a free fleet fouling-risk profile
Send your fleet details and we'll run a preliminary Hull-Sight risk profile from publicly available data — at no cost — so you see what the platform would show before committing to anything. Want a survey? Tell us the vessel and port and we'll quote it.
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