Can we afford to wait for IMO EEXI?

Ships are wasting fuel & emitting unnecessary CO2 today!

The current EEXI proposals going through the IMO are planned to enter into force on 1st January 2023. With no enforcement being considered any serious reduction in CO2 emissions may still be way over the horizon.

Detailed studies by Azurtane have concluded that every ocean-going vessel is wasting from 2% to over 5% of its annual fuel consumption. Putting this into context, International shipping’s contribution to immediately reducing CO2 emissions could be as much as 40Million tonnes per year. This is not only an accelerated path to zero CO2 but also a significant cost saving.

“Today most ships are sailing blind” says Don Gregory from Azurtane. He said “ships typically measure and report fuel consumption on a daily basis”. The so called “noon day report” has little detailed information on the intervening 24-hour period on the conditions the vessel encountered and the minute-by-minute carbon emissions. In terms of management of cost, greater granularity of operational data and application of scientifically calculated solutions is required in real time to enable both fuel savings and reduction in CO2 otherwise ships will continue to operate inefficiently burning fuel, contaminating the atmosphere and soaking up huge amounts of cash.

There are many opportunities to optimise fuel consumption. Trim and draft are frequently promoted as achieving over 10% dependent upon vessel type. However, the many suppliers of trim management systems are unable to verify the claimed savings as they simply rely upon the noon reports to calculate fuel consumption savings. Azurtane is different. With on-line monitoring of fuel consumption and distance travelled over the ground, the system has a second-by-second account of the ship’s performance. This is critical if there is to be confidence, as well as immediate verification of improved performance as a result of an adjustment in trim and/or draft. Tracking in real time enables the ship’s officers to witness fuel used in grams/second and metres travelled.

Such a high granularity is essential when routing to benefit from effects of ocean currents. With a following current naturally the 24 hours distance travelled over the ground will be greater. But maximising “current assist” is only possible if course variations are implemented in real time, ensuring the maximum benefit of the central region of a following current. Azurtane has records of identical voyages in which a 30 Nm difference in track resulted in 10% loss of transport work through “current assist” with an associated $1,500 additional fuel cost and 7 tonne of excess carbon emissions.

How does Azurtane achieve real savings which result in reductions in carbon emissions today? Don Gregory comments “It is not simplistic demands that all ships should reduce speed or reduce installed power. It is founded on the hydrodynamics of ship propulsion.”

Every finance director knows that the balance sheet only provides a picture of a company’s financial state at a moment in time. This is akin to the noon day report. Even the most profitable companies can go bankrupt if they do not manage their cash.  Understanding and optimising the true costs of operating vessels is the best way to managing the fuel asset on board ship and by extension reduce the costly CO2 emissions.

Azurtane has thus developed highly accurate cost-effective technology to measure both fuel use and transport work. This is not unlike IMO’s Energy Design and Energy Operation index formula which relates carbon emissions to transport work done. The difference is that Azurtane achieves this by monitoring the operational reality.

Today the marine media abounds with claims of initiatives to reduce carbon. The reality is they are often just claims, whereas Azurtane provides the instant opportunity to avoid wasting fuel and emitting unnecessary carbon today. This is effectively early and immediate support for the objectives of the IMO EEXI proposals.

The technology that Azurtane offers can be summarised as;

  • Unique vessel position technology
  • Highly accurate and certified energy efficiency control through precise fuel measurement and vessel position
  • Voyage speed/power optimisation
  • Low-cost plug & play hardware with simple installation
  • A cost-effective solution to compliance with EU ETS regulations

In virtually all cases the cost of the service is less than the value of the fuel saving. In fact, it makes no sense not to utilise Azurtane’s energy efficiency system and achieve the ambitions of EEXI today.

Azurtane Media Release – 12 May 2021

About Azurtane

Azurtane is the developer of market leading technology to reduce and prevent marine emissions. Its solutions help the shipping industry to achieve greater fuel efficiency, cut energy costs and comply with national and international environmental legislation. The company’s particular expertise lies in tailored marine measurement systems and data analysis, performance benchmarking, marine gas sensing technologies, SOx & NOx emissions determination, emissions compliance assurance and marine energy efficiency management. Further information is available at

Azurtane is located at:
Unit 14, City Commerce Centre
Marsh Lane
Southampton SO14 3EW

Press enquiries:
Mr Don Gregory +44 (0)7884 113690