A method for providing a power estimation for an electronic system is disclosed. Initially, a system architecture of an electronic system design is initially developed, and the system architecture of the electronic system design is then converted to a power flow architecture of the electronic system design. For each power domain within the power flow architecture of the electronic system design, a power domain type is designated. Subsequently, power information are added to the power flow architecture of the electronic system. Finally, a power roll-up calculation is performed on the power flow architecture of the electronic system design in order to yield a final system power value for the electronic system design.