1. A method for selecting a power source for a device or delivery point from two or more available power sources, the method comprising the steps of: (a) analyzing market and operational data related to the two or more available power sources, and the device or delivery point; (b) selecting the power source for the device or delivery point from the two or more available power sources based on a set of financial parameters; and (c) sending one or more signals to switch the device or delivery point to the selected power source whenever the device or delivery point is not already connected to the selected power source.