IV curve tracing

Measure what each string and module can really deliver. An IV curve tracer sweeps a string or module from short-circuit to open-circuit and records current against voltage. The curve shows maximum power, mismatch, shading effects and failing cells in one picture.

Request this service See the process

When you need it

Output is lower than a neighbouring plant of the same size
String currents differ more than expected
You need numbers for a warranty claim
After cleaning or repairs, to confirm the fix

Benefits

Finds weak strings without opening the plant to guesswork
Separates module faults from wiring and shading problems
Gives measured evidence you can show a manufacturer or lender

The process

How we do it, step by step.

Plan the sample

Choose representative strings and modules with you, covering each inverter and each block.

Measure on site

Trace curves with irradiance and module temperature logged at the same moment.

Correct to standard conditions

Convert readings to standard test conditions so strings can be compared fairly.

Compare and flag

Compare against the datasheet and against peer strings, then flag outliers.

Outcomes you can expect

A ranked list of strings and modules that fall short
An estimate of the power gap per string, labelled as measured or estimated
Clear next tests, such as thermal imaging or EL, where the curve points to a cause

Outcomes depend on what the inspection finds. Possibilities are labelled as such in every report.

What you receive