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It is seen from the preliminary work [1] of this paper that in the literature there is a need for a power resolution, which can be utilized for (i) the direct provision of the optimum compensation capacitor’s power and (ii) obtaining meaningful information on the detection of the harmonic producing loads. This paper proposed a power resolution that can be used to achieve both goals under nosinusoidal and unbalanced conditions in the smart power grids. First goal is important for cost effective unity power factor compensation including a basic capacitor and an active compensator. The second goal is required for the practical detection of harmonic producing loads by using the demand meters, which are employed to measure the powers for the energy billing of the consumers. The proposed power resolution is based on the separation of load current into orthogonal components as active, reactive, scattered conductance, scattered susceptance, unbalanced conductance and unbalanced susceptance currents, which are all related to the conductance and susceptance parameters of the load. To show that the proposed resolution attains its goals, the simulation and experimental based analysis are presented in this paper.