The Methodology for Ecodesign of Energy-related Products (MEErP henceforth) consists of a techno-economic-environmental assessment of a specific product group. This assessment is the main analytical step in the potential implementation of the Ecodesign Directive for a specific product group. Since 2013 the current MEErP methodology has been in use and considered fit for purpose. However, since time has already elapsed in this very dynamic field, the need for an update is apparent. The update of the MEErP put forth by the JRC at the request of DG GROW covers the following areas: 1) the updating of the EcoReport Tool; 2) a more systematic inclusion of material efficiency aspects and of environmental footprint/ecological profile aspects in the design options and in the LLCC curve; 3) a more systematic inclusion of societal life cycle costs; 4) a more refined evaluation of the economic impacts in task 7 of the MEErP. The present manual: - describes each worksheet of the revised Ecoreport tool, in the order as they appear to the users. The user can find, at the beginning of each section of this report, the references of cells, rows and columns in the excel file to help moving within the tool and describe its functionalities - explains how/which sections of the MEErP have been updated or replaced by this revision (the present document and the review of MEErP report 2024), starting from the version of the MEErP used at the time of drafting this document for preparatory and review studies.