The audit highlighted the method's strengths and identified areas for improvement. It also paved the way for further research into the state of the art in environmental impact assessment. This work focused in particular on the multi-criteria impact assessment approach for electricity, proposed in open-source by Digital4Better, as well as on the rules for allocating services and equipment. It also looked at how distances are taken into account when calculating the impact of networks, and at issues linked to uncertainties in the assessment.