The Yacht Environmental Transparency Index (YETI) is the industry-wide method to voluntarily assess and compare yachts based on their environmental performance. As the result of a powerful joint industry project, YETI’s ultimate goal is to reduce the yachting fleet’s ecological footprint in the operational phase of its life cycle by offering a reliable reference. It provides both the yachting industry and owners with a clear understanding of their vessel’s current environmental impact, the sources of that impact, and serves as a valuable decision support system for implementing new, future-proof solutions.

What YETI Offers

The YETI software tool serves a higher purpose, providing the industry with a transparent platform for conducting their own calculations and comparisons.
The YETI score is not the end-goal but rather the starting point— offering valuable insights into how environmental performance can be further improved.
By assessing a range of environmental parameters, YETI goes beyond just CO2 or GHG emissions to understand the
real ecological impact.
It is an essential tool for setting sustainability ambitions in new yacht builds and guiding existing vessels toward meaningful environmental upgrades.

YETI Lite

  • Straightforward data input
  • Provides quick score estimates with up to 90% accuracy
  • Designed for non-technical users
  • Free & open-source

Disclaimer: not be used for any official claims nor critical decision making

YETI Pro

  • Calculates well-to-wake impact based on power demand & benchmark from YETI operational profile
  • Offers quantified yearly energy consumption & emissions
  • Aligned with IMO Marpol regulations
  • Expands beyond CO2 to assess various environmental parameters €1000/year for 3 users
  • Option to validate scores through a third-party verifier for official certification
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Developed in collaboration with 20+ industry leaders & research institutes

Why YETI?

For shipyards, designers, and engineers, YETI offers a reliable tool to measure and compare the footprint of existing yachts in order to take the information learned and further optimise vessels on the drawing board.
For service providers (refit yards, management companies, etc.) YETI can deliver a zero-baseline assessment that can be used to develop yacht service packages, resulting in improved YETI scores and concrete upgrades for client.
For marinas, insurance companies, and financiers, YETI is a reliable measure when considering which yachts to provide their services to. The same goes for charter managers who need to provide more transparent decision-making and offer risk assessments to clients.
For suppliers, there is an opportunity to develop sustainable technology that will be recognized by YETI and used to improve a yacht’s score. YETI also recognises yacht owners for their efforts and investments in environmentally-friendly vessels.
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