1. Taking stock

Performing an inventory of fixtures and fittings is a somewhat complex operation for beginners, and time-consuming for anyone who takes the time to do it, but it's essential if your company is to identify the installations, processes and personnel that have a significant impact on energy use. And as the information to be collected depends on the scope of the study, throughout this guide we will consider a "global" scope including (the) installations, (the) processes, networks and utilities necessary for the proper operation of the site. The non-exhaustive list of data to be collected includes the following items.