Understanding the "Panel Configuration tab"

1. Panel Tilt – This will populate by default when selecting “Commercial” as project type and is most commonly used when the project site is flat
2. Row Spacing Factor – For Solar Panel arrays mounted on flat roofs or on the ground, with multiple parallel rows, one row of modules can potentially shade the other behind it if the rows are too closely spaced. Enact automatically calculates the distance between rows to avoid shading. Spacing is calculated using array height*spacing factor. Spacing factor can vary based on the latitude of the project site.  By clicking the “?” next to “Row Spacing Factor” you can find some general guidelines for this input
3. Roof Tilt –This will populate by default when a project type is “Residential”. This can be set in degrees as well as in inches (rise/run)
4. Panel Size: 60, 72, 96 cells –Enact has standard default measurements for 60, 72, and 96 cell modules. If your module size does differ you can select “custom” from the drop down and input the module size.
5. Array Type – Enact allows for 6 options here. These options are listed below and more information on these types can be found by going to PV Watts.  Enact utilizes the PV Watts calculator for solar generation estimates   
   1. Fixed (Open Rack)
   2. Fixed (Roof Mount)
   3. Single Axis Tracking
   4. Single Axis Back Tracking
   5. Dual Axis Tracking
6. Draw PV Array – Select this button when you are ready to draw you project site. For more information on how to layout your panels go here
   
7. Setback – Enact allows you place setbacks on your project site. This input is used for global setback on the entire perimeter of the project site.