I-V Curve Tracing is a fast, reliable, and comprehensive way to efficiently identify and diagnose performance issues in PV systems.
For each string in a photovoltaic array, an I-V Curve Tracer measures current and power as a function of voltage. Comparing voltage measurements of a range of electrical loads connected to a string are compared to expected results. By analyzing the shape of the curve, this can identify problem-causing elements in the string, such as which module, connector, or length of wire could be causing performance issues.
When a system seems to be underperforming, I-V Curve Tracing is an efficient method of troubleshooting and narrowing down potential issues.