As described last week, net savings and program attribution are measures of an efficiency program's influence on making a project happen for utility customers. There is a range of influence that energy savings has in motivating customers to do a project, and that range is 0% to 100%, while accurate attribution results may be 90% or better. The role of energy savings in a decision can be largely irrelevant in determining attribution. How? Non-energy benefits! The situation reminds me of fluid dynamics, a core course in mechanical engineering. There are major friction losses and minor friction losses. Major losses are…
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This week, we finish the series on attribution studies. First, let me explain, while I beat up attribution assessments, they are necessary. This post will conclude with how I think they should be used. Experimental v Quasi-Experimental Second, I want to make a couple comments about last week’s post. Near the end, I explained randomized control trials (RCTs) for determining attribution. Test samples need to be drawn before the attribution study using the RCT. Correct me if I’m wrong, but this never happens when determining the attribution of an efficiency program. The attribution study always occurs after, or at best,…
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