People often wonder why they have to enter scaled averages for load and resource data. Can't HOMER Pro just use the specified data without scaling it? Yes it could, but then you wouldn't be able to do a sensitivity analysis on the load size or the wind, solar, hydro, or biomass resource. We introduced the scaled averages to allow users to perform sensitivity analyses on these important variables.

The first time you specify synthetic load or resource data, and every time you specify a data file, HOMER Pro sets the scaled average equal to the average of the baseline data. So you only have to enter the scaled average when you want to scale the baseline data or perform a sensitivity on it.