Validation of Photovoltaic Modeling Tool Solargraf Against Measured Data

Summary

Accurately predicting the performance of solar photovoltaic (PV) systems is crucial for project planning and investment. This report details a study validating the Solargraf 3D design tool's simulations against actual measured PV system performance data from NREL's campus, also comparing its accuracy to the System Advisor Model (SAM). The study found Solargraf's annual prediction error to be between -3.9% and -1.3%, indicating its capability in modeling PV system output.

Key Facts

Source Document

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