Maritime Glossary
Energy Efficiency Existing Ship Index
Also known as: EEXI
A one-time technical efficiency standard for existing ships under MARPOL Annex VI, in force from November 2022.
Status: ActiveVerified: Source confidence: high (95%)
Full Definition
The EEXI sets a design-based baseline efficiency level for existing vessels calculated once from design parameters (installed power, speed, capacity). Ships not meeting the required EEXI value must implement Engine Power Limitation (EPL) or other technical measures. Unlike CII (which is annual and operational), EEXI is assessed once at a ship's first annual, intermediate, or renewal IAPP survey after 1 November 2022.
Domain Tags
decarbonizationregulationenergy efficiency