New guide helps owners select energy efficiency technologies

Together with its accompanying Excel tool, the Guide aims to support shipowners looking into retrofits, with helpful guidance on considerations and operational practices that should be taken into account when selecting relevant technologies.

The Guide provides a simple yet flexible methodology for shortlisting technologies, based on a set of eight evaluation criteria – similarity, plausibility, accuracy, overall and specific volume of orders, repeat orders, consistency and compatibility.

The methodology and the associated Excel-based high-level assessment tool are designed to be user-friendly and do not require specialist technical knowledge. It uses a “traffic light” scoring system to help narrow down the available choices according to the level of confidence that shipowners may have regarding vendors’ performance claims.

Reference is made the Ship Energy Efficiency Management Plan (SEEMP). The SEEMP should be updated and revised to reflect the ship’s current operational profile. Some of this work would need to be done in conjunction with the development of an implementation plan for achieving carbon intensity indicator-related targets, which should be incorporated into SEEMPs by 1 January 2023 in line with new standards for the shipping industry.

A range of operational measures are then introduced that have the potential to generate substantial savings – in most cases, savings that are greater than those which may be obtained by retrofitting energy efficiency technologies.

Claimed savings are much diminished when EEXI and carbon intensity requirements are applied. This is due to the calculation methodology and needs to be taken into account, especially if the main objective is to achieve compliance with the regulations.

The guide is available here.