PV Designer software enables you to quickly and easily: draw a roof outline, specify set-backs and keep-out regions, incorporate SunEye shade measurements at specific locations on the roof, drag-and-drop modules, size strings, check inverter limits, and calculate the AC energy production for your system. It includes extensive world-wide databases of modules, inverters, and historical weather. You can easily try different design scenarios and compare their AC kW-hr outputs side-by-side to identify the best design. Results can be exported in a PDF format and printed or emailed to clients. The software is designed for residential and small commercial systems.