Energy Consumption Analysis and Design of Energy - Aware WSN Agents in fUML Luca Berardinelli, Antinisca Di Marco, Stefano Pace, Luigi Pomante and Walter Tiberti 11th European Conference on Modelling Foundations and Applications 2015 L’Aquila, Italy, July 20 – 24, 2015 Part of the conferences at STAF 2015