Solar Design Tools


With Sunny Design, PV system design is easier than ever. Simply enter basic system parameters and Sunny Design will provide a customized, optimal system configuration complete with suggested inverter models and string sizing options based on the system size. Sunny Design can even combine complex plants with several different sub-arrays and inverter types into a single project.

Please Note: While the string sizing tool is no longer available, Sunny Design 2.0 features all the benefits of this application along with enhancements and support that simplify PV system design.

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Voltage Drop Calculator

This Voltage Drop Calculator is designed to give the approximate voltage rise in the AC circuit between the Main AC Service panel and the inverter. SMA America, LLC, makes no claim as to the performance of your system, including, but not limited to, actual efficiency or power production of the inverter based on the information from this Program. You must agree to this policy in order to use the Voltage Drop Calculator in whole or in part. Do you agree to abide by these terms?

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SMA Service Line

Our Service Line team is available to provide expert advice Monday through Friday from 6:00 a.m. to 5:00 p.m. Pacific time.

Service Line phone number (Toll free):

+1 877-697-6283
+1 877-MY-SMATech