data from the bas base configuration so it can project out beyond current conditions c example the facility operations manager wants to know if it is cost effective to change out filters thereby lowering static and in turn horsepower and in turn demand and in turn demand ratchet if the cost of the filters and the labor to replace the filters is known the simulation program can project the cost impact of the change in demand projected over the demand ratchet period brought back to a net present value the same approach can be used to determine the speed at which emergency generators can be run in order to shed demand without exceeding emissions limits d the second feature is to provide a design phase report that can be used to project savings afforded by implementing the technique of the present invention and in turn calculate return on investment necessary for justification of additional capital costs upon initiation at the optimization workstation the optimization preprocessor will retrieve a design phase weather load file from an archive as shown in fig1 particularly focusing on decision nodes 1 through 4 which involve retrieving the correct input file and routing the output files depending on the modes of operation this weather load file will contain a weather template for the location.