Haritz Zubia Urrutia is CTO at Ariadna Grid. An Industrial Electrical Engineer (UPV/EHU), he has led R&D in LV/MV distribution since 1998, spanning market discovery, product specification, HW/SW design and industrialization. He created the portable line-and-phase identification system (since 2000) used worldwide to lift LV topology in manual campaigns, and designed MV/LV cable ID identifiers and underground cable locators. He is the inventor of a patented passive topology algorithm that fuses AMI and substation data to infer LV topology and detect shunt tampering. Previously CTO at Merytronic (2012). At Ariadna Grid currently he leads the Grid Twin Ariadna GTA project.