The sofware developped by SMA is SUNNY DESIGN. By simply entering some
basic system parameters, this free software
helps solar installers and system planners visualize possible PV plant
designs and select the optimum configuration quickly and easily. Sunny
Design offers a user-friendly interface and a practical input wizard
for assistance. It also provides data for an economic evaluation of the
system along with a technical analysis of the included components.
Sunny Design saves solar professionals valuable time and results in a
customized PV system for the end user. You can also assess losses in AC
and DC cables.
SUNNY DESIGN
Now SMA propose also a version online of Sunny design called "Sunny Design web"
Link to use Sunny Design Web