When you need to account for the effects of upstream programs, changing economic conditions, or new rate structures, a comparison group of similar non-participants allows you to isolate for the savings attributable to your interventions.
If you have access to consumption data from non-participants, you can select your parameters and choose buildings with matching energy use profiles from the same area. Each participant can be matched with any number of non-participants to make sure that you are confident in your calculations.
