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GHG Rating

RightShip’s GHG Rating rates the emissions output of commercial vessels on a scale from A (most efficient) to E (least efficient). The gold standard for emissions comparison in the shipping industry, it is the first rating to incorporate EEXI values alongside EVDI and EEDI. It works by calculating and comparing a vessel’s designed efficiency against peer vessels of similar size and type using a speed-corrected methodology.

Shipowners and managers need to improve the design efficiency of their vessels as short-term measures on the path to cutting their carbon emissions to zero by or around 2050 in line with the IMO’s latest regulations. The GHG Rating enables users to benchmark vessels against its peer group, manage vessel upgrades and newbuild designs, and develop effective decarbonisation strategies.

Features of GHG Rating for Shipowners

Standardised approach to decarbonisation

Speak the same language as your customers and suppliers by using the GHG Rating, easily understood and used by all players in the industry to decarbonise their supply chain.

GHG 2.0 Dashboard 1

Showcase the efficiency measures undertaken during the design, build and operation of your fleet. Work with RightShip’s sustainability team to see how to improve a vessel’s GHG Rating over the course of its operational lifespan.

Promote your investment

Promote your investment in energy saving equipment and vessel design through the GHG Rating. The RightShip platform provides recognition for investing in efficiency measures by clearly displaying upgrades to your vessel (+) for all our due diligence customers to see.


The unique service that RightShip offers, from safety, to Port State Control performance, to GHG Ratings, all give us a wider understanding and clarity of our business. This overview is, in our opinion, useful for our company and the shipping industry itself. As stakeholders in the commercial maritime / supply chain industry, whether as shipper or receiver, charterer or owner, we are all part of a rapidly evolving ecosystem that keeps reinventing itself, adapting to the demands of the market, world economy, and social needs. Dry Bulk shipping in particular is transforming extremely quickly.

Laskaridis Shipping Company Ltd

RightShip, the ship approval system used to verify vessel efficiency, has confirmed the fuel savings Odfjell has achieved using MAN Diesel & Turbo’s Kappel Propeller upgrade package. After the upgrade, the vessels are amongst the most energy efficient chemical tankers in the world, and achieve the highest score on the RightShip’s energy rating, A+.

Odfjell SE

We find checking the status of vets, Safety Scores and the GHG Rating using the RightShip Platform gives us faster responses for closing out deficiencies or complaints and means that we can improve our ship management and maintain good performance in a commercial market. The knowledge centre also offers in-depth information and support

SDSC Ship Management Co. Limited

At Equinox Maritime we find the RightShip portal easy to access, irrespective of what we’re looking for – from Safety Score information to Document of Compliance (DOC) performance to GHG Ratings. We’re able to monitor our vessels, Port State Control (PSC) Inspections and close out reports with great ease.

Equinox Maritime Limited

GHG Rating advantages


Compare a vessel’s GHG Rating at a Document of Compliance (DOC) and world fleet level to help you develop a clear emissions reduction strategy. Clearly see a fleet’s efficiency ratings in comparison to peers, as well as progress towards goals.

Simplify purchasing decisions

Purchase new and second-hand vessels with confidence. An energy efficient vessel has lower fuel costs, lower CO2 emissions and better chartering potential, which may lead to a higher initial asset value and a longer period of economic depreciation.

A competitive advantage

Make your vessel as attractive as possible during a charterer’s vessel selection process and display your environmental upgrades and efficiency measures in the RightShip platform.