fluid dynamics

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…