The document presents the outcome of the evaluation process of candidate Projects of Common Interest in the priority thematic area of ‘smart grids deployment’, as set out in the trans-European energy infrastructure regulation. The evaluation follows the guidelines of the assessment framework for smart grid Projects of Common Interest, 2017 update, developed by the JRC and adopted within the smart grid Regional Group. The report aims to assist the smart grids Regional Group in proposing projects of common interest in the area of smart grids deployment to be included in the 3rd Union list of Projects of Common Interest.