Determining the cost-effectiveness of a DR program is very important.  Prior to approving a program, the CPUC does a cost versus benefit analysis of the program in order to determine whether the program provides positive value to electric ratepayers.  This is a complex analysis that involves several steps.  The steps are outlined below in a public document:  the DR Cost-Effectiveness (C-E) Protocols.  The DR Reporting Tool is the tool used by DR program managers to show their cost-effectiveness calculations.