Vessel Performance

Our Software, VESPER supplies the​ shipping world with performance analysis and operational solutions

VESPER software

Performance analysis & Operational solutions

The software is being continuously developed in close cooperation with our clients, ensuring that their requirements from operational perspective are met. The broad web interface of VESPER provides daily monitoring of individual vessels as well as long-term trends and benchmarking overview among the whole fleet. You can set up your own dashboard on the web tool and track your vessels in your office. Most of the analytical data can also be retrieved through excel and API. Furthermore, selected results are available directly in a (secure access) database from your own Business Intelligence tool.


Running the service requires your vessels’ data feed, either delivered directly from the vessels (e.g. by email), through a data upload (using sFTP) or using an API.

Performance Tracking of Hull & Propeller

Having a clean hull, with low friction, is the key to having a well performing vessel. Many factors affect the hull condition, but the most important factors are listed below:


  • Underwater Paint Type Quality

  • Dry Docking Interval

  • Dry Docking Treatment (Spot vs Full blast)

  • Operational Pattern (idling, 'hot' sea water, etc)

  • Paint Thickness (too much or too little is not good...)

  • Repeated Hull Cleanings


In our opinion, the only way to ensure a well performing vessel is through condition based monitoring. Proper analysis of data, combined with inspections (and hull cleanings) ensures a promising propulsion performance.

On the basis of our baselines for a specific vessel, VESPER provides different performance indicators using different methods and data sources.


The history of performance indicators are evaluated and visualized based on instantaneous trend calculation of the vessel since the last event. You can also get an overview of the average performance decay of your whole fleet and also the performance of individual vessels compared to that average. Moreover, overall performance evaluation can also be assessed from paint types perspective. The photo shows the hull condition of a vessel that has been sailing for four years, and which has already undergone 4 hull cleanings. Our performance system predicted an added resistance of around 40 % compared to Sea Trial performance.

Main Engine Performance

A well tuned and balanced engine plays a significant role in efficiency of vessel operation. Having a well functioning calibrated torque meter along with accurate fuel consumption measurement is one of the options for monitoring of engine efficiency through the Specific Fuel Oil Consumption (SFOC).


In addition, many operators use monthly (dedicated) performance tests of the main (and auxiliary) engine(s) in order to get detailed measurements on compression and combustion pressures, as well as the engine balance.


VESPER has a report for monitoring the daily SFOC of the main engine. The main engine shop test results are used to create propper baselines. Benchmarking of sister vessels which have the same engine installed can be assessed in this report. Basis the principle of a ‘parent’ engine, all engines are supposed to be able to perform according to the (best/parent) engine in the group.

Aux Engine (Baseload) & Boiler Performance

Base load (i.e. non propulsion related energy ) and boiler consumption can be efficiently monitored and managed through baselines setting and benchmarking. It all relates to energy awareness onboard the vessels. Some crews are very aware of their electrical (and steam) consumption, saving everywhere they see an opportunity. However, for some, it is not part of their daily routine to save where possible. Therefore, there is upto ….% saving potential in analysing the data from these consumers.


Our approach is to set a (realistic) target for Base Load and Boiler consumption, and then monitor all vessels compared to the target. This approach reveals if the vessels consume as expected, or if there are certain vessels in the fleet that stick out.


Sister vessels with the same generator setup are compared. Getting a sufficient amount of data, the baselines can be readjusted based on the best performing vessel in the class

Vessel Performance Solutions, Diplomvej 381, 2800 Kgs Lyngby, Denmark, Tel: (+45) 61 67 07 78