Case Studies

Solar farm inspection summary

25th July 2018

1.85MW,  284 Anomalies, 3.84% of system

1 Shattered Front Glass
104 Blown Bypass Diodes
2 Open Circuit Strings
7 Hotspots
73 Snail Trails
49 Soiling and Shading from foliage

This 1.85MW PV System is relatively small but contained a very significant amount of findings which will undoubtedly be having a detrimental effect on the performance of the system.

Shattered glass destroys the module and is a safety issue because of exposed live electrical components. The 104 blown bypass diodes will be costing the asset owner an estimated 1% in lost yield every year.

‘Snail Trails’ are often indicative of cracked PV cells which cause further losses to be compounded over the life of the system. Additionally, as this could be regarded as a warranty issue with the manufacturer, discovering these latent defects early is imperative.

This inspection:

  • was completed within just a few days
  • did not require the system to be shut down at all
  • discovered faults which are often missed using traditional manual testing methods
  • reported the exact location of any affected modules
  • saved countless man hours
  • Increased efficiency
  • decreased downtime.

Watch a video showing the inspection and types of faults , then contact us for more information.


Please leave as much details as you can. We will issue you a guide proposal and an idea of feasibility.


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