A solar photovoltaic (PV) system is required to be rigorously tested as part of the commissioning process and periodically throughout its subsequent lifespan. This is to test both the quality of the installation and the quality of its performance.
Solar PV systems are designed to last over 20 years, and they need to perform consistently throughout that period in order to generate the energy savings required.
So continuously verifying system performance is essential. But the priority is safety.
What are the two types of solar PV testing?
The first type of testing is a visual inspection, which should be carried out upon commissioning and frequently during operation.
Secondly, the DC current side of the system needs to be tested, and this is done live.
This testing is split into two types; system testing and measurement and system performance testing.
1- System testing and measurement
This is a series of standard electrical tests to check the system has been installed safely and correctly, and that this continues at frequent intervals during operation.
* Continuity and resistance testing
* Polarity
* Voltage and current testing
* Insulation resistance testing
2- System performance testing
This is a series of tests carried out to check that the solar PV system is operating in accordance with the design spec, and against STC (standard test conditions) figures supplied by the manufacturer.
* Irradiance testing
* I-V Curve testing, Using an I-V curve tracer we can measure the solar I-V curve, which is the relationship of current and
So the system testing and measurement tests can tell us whether the solar PV system is safe, while the system performance tests tell us whether the system is performing well.
AQ Electric brings extensive experience in testing solar PV systems, utilizing advanced equipment and adhering strictly to international standards. Our team ensures both system safety and optimal performance by conducting comprehensive testing throughout the system’s lifecycle.
For more information and requests you can reach us,,
– Email: Aqatawneh@aqelectric.net
– Mobile: +201151006630
+962795154126