SARDINE RESPONDS TO THE DESIGN NEEDS OF SMART GRIDS BY AIMING TO CREATE A WEB-BASED DECISION-BASED APPLICATION THAT THROUGH A TOOL ALLOWS TO INCREASE THE EFFECTIVENESS OF THE ANALYSIS DURING THE DESIGN OF NEW SMART GRID OR RETROFITTING SOLUTIONS TO BE IMPROVED. TO DO THIS IT INTEGRATES SEVERAL METHODOLOGIES THAT INCLUDE: THE GEOGRAPHIC INFORMATION SYSTEM (GIS), MULTI-CRITERIA OPTIMISATION (OM) AND LIFE CYCLE ASSESSMENT (LCA).SPECIFICLY, THE GIS SYSTEM WILL BE USED TO COLLECT, COLLECT AND PRESENT DATA AND GEOGRAPHICAL CONSTRAINTS THROUGH THE WBDSA; THE LCA METHODOLOGY WILL ALLOW THE PROCESSING OF DATA AND SOCIAL, ECONOMIC AND ENVIRONMENTAL CONSTRAINTS; MULTI-CRITERIA OPTIMISATION WILL PROVIDE THE MATHEMATICAL BASIS TO EVALUATE AND PROVIDE THE SMART GRID DESIGNER WITH OPTIONS INDICATING THE BEST ONES BASED ON THE REQUESTS EXPRESSED