By using this String Sizing Program you agree that this Program is for approximating PV module string sizes only. Further you agree that SMA America, Inc. makes no claim as to the actual performance of your system, including, but not limited to, the efficiency or power production of the inverter and PV modules based on the information from this Program. Additionally, you agree that it is the responsibility of the system design engineer to ensure that the PV module selection, array configuration, and associated wiring diagrams are appropriate for the system being considered.
From SMA Solar Technology