System Shade Losses vs Shaded Module Optimizer
Which should you use?
The Production report will be the final calculation of the system design when you are estimating what the system is going to produce, which is why it is a very intensive simulation. The Shaded Module Optimizer is much faster to calculate because it is only for determining which modules are most impacted by shade.
Shade Calculations Methodologies
The Shaded Module Optimizer only samples a portion of the year, specifically every hour of the 15th day of each month, for a total of 12 days a year.
Weather dataset used