Solar panel installations are becoming increasingly popular from both a private, commercial and governmental perspective amid a fall in installation costs and a long-term price rise in non-renewable energy sources such as coal, oil and gas. However, solar panels require regular maintenance, which is where thermal imaging can provide an efficient solution to many of the challenges posed.
Thermal imaging cameras are capable of showing a number of problems. such as defects in cells (impurities/gas pockets or cracks), temporary shadowing (dirt, pollution, humidity, bird droppings), defective bypass diode, or faulty interconnections.
Most problems will show as a hot spot or cold spot although defective bypass diodes display as a ‘patchwork’ pattern. As these problems can clearly be shown on screen, it makes it easy to scan large installations quickly. However, thermography only provides indicative results and a full electrical inspection must be carried out for confirmation. Nevertheless, thermal imaging should be the first port of call when checking new or existing solar installations.
Solar panel inspection is a proactive approach to ensure the optimal performance, safety, and longevity of solar energy systems. By identifying and addressing issues in a timely manner, solar panel inspections contribute to maximizing energy production and the overall reliability of the system.