1. A method for determining demand weighted average power on a periodic basis, comprising the steps of: obtaining data comprising measured demand and energy consumption at selected time intervals during a given period of time from an external information system; importing the data from the external information system; computing demand weighted average power (DWAP) as 
 DWAP=sum( D j ·P j )/sum( D j ), where: D j =Demand at j interval P j =Power at j interval j=each individual n-minute interval of measurement; and producing an output of the computed demand weighted average power with respect to time.