A method and system for reducing power consumption of an integrated circuit with an EDA tool by analyzing and modifying a layout design having a plurality of nets across multiple metal layers. The method includes identifying long nets in the layout design, determining an interconnect capacitance of each of the long nets, determining a net level switching activity of each of the long nets, generating a high power impact list using the interconnect capacitance and the switching activity of each of the long nets, modifying a metal spacing of the long nets listed in the high power impact list.