Energy Saving at Sea


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Climate change

Self-paced courses

2 hours

With certification


...explains key principles underlying the energy efficient operation of ship machinery and equipment, while looking at some of the practical operational measures for energy saving on board ships.


How can the shipping industry be more energy efficient?  

This course, Energy Saving at Sea, primarily aimed at seafarers, is a complement to the Introductory course on Energy Efficient Ship Operation and covers detailed practical measures that can be taken by the Engine department and Deck department on board ships to save energy in their day-to-day operations.

This course will be of particular interest to:

  • Seafarers interested to understand how international regulations to address emissions can impact their daily tasks 
  • Seafarers interested in practical measures to reduce fuel consumption and increase energy efficiency on board
  • Personnel in shipping companies and ports interested to learn more on practical measures for ship energy efficiency and how to support their implementation

What you will learn

This course explains key principles underlying the energy efficient operation of ship machinery and equipment. The course will look at some of the practical operational measures for energy saving on board ships. The first module focuses on how energy can be saved by the engine department and the second module covers what the deck department, in cooperation with the company’s shore operations, can do to reduce energy consumption and, as a result, reduce greenhouse gas emissions.

At the end of the course, you will be able to: 

  • Identify which aspects of ship handling, ship operations and engine room operations can have an impact on energy saving;
  • Describe how ship’s fuel consumption can be reduced;
  • Outline the different measures that can improve ship energy efficiency; and
  • Discuss how practical measures could be implemented on board your ship.

Course at a glance

This course is divided into two modules:

Module 1: Energy saving by the Engine department 

Module 2: Energy saving by the Deck department

Each module focuses on actions that seafarers can take to contribute to the improvement of energy efficiency on board. 

The modules are stand-alone and participants may opt to study only the module related to their department. However, in order to gain the Certificate of Completion, participants must complete both modules. As a result, some duplication of content across the two modules can be noticed.

Completion requirements

A short quiz at the end of each module allows you to verify if you have achieved the learning objectives.  To successfully complete the course and gain a Certificate of Completion, participants have to obtain a passing grade of 70% or above to both assessment quizzes (3 attempts are allowed for each quiz).

Partners and Contributors

This self-paced free course has been developed by the Global Industry Alliance to Support Low Carbon Shipping (Low Carbon GIA), a public-private partnership bringing together leading maritime companies to address barriers to low carbon shipping, established under the IMO-Norway GreenVoyage2050 Project. 

The course is made available on UN CC:e-Learn through the new UN CC:Learn affiliation programme, which highlights high-quality e-learning products on climate change developed by recognised institutions outside the framework of the UN CC:Learn programme / without support from the UN CC:Learn Secretariat, in accordance with specific affiliation criteria. The objective of the UN CC:Learn affiliation programme is to enhance global climate literacy through dissemination of high-level learning products that complement UN CC:Learn resources. If you face any issue with accessing or going through our courses please access our help page.

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