Infrared Imaging as a PV Characterization Tool- Self Study
The use of infrared images is a well-known technique for building inspections and electrical trouble shooting. It is also very useful in diagnosing the health of PV modules working in the field.
Other than monitoring the overall array energy generation, IR imaging is one of the few techniques available to get detailed information on the health of PV modules after they are installed. This information can be critical in identifying both performance and safety issues. Many potential problems can be found and rectified before they significantly impact performance or generate an unsafe condition. A broad range of defects, including those related to manufacturing and workmanship details can be identified, if you know what to look for.
IR imaging is a powerful tool to access the health of modules while that operate in the array. It should be a routine part of all PV quality acceptance programs, as well as annual operations and maintenance programs.
- Introduce the infrared (IR) imaging technique.
- Describe why IR imaging is a useful tool in the operation and maintenance of PV solar arrays.
- Describe the array and weather conditions needed for IR imaging.
- Understand typical PV failure modes and the signature IR image they generate.
- Give general guidance on the severity of defects identified in the IR images.
Length: 1 module
About the Author
Dr. James Rand
Core Energy Works
Dr. James Rand has over 30 years of experience in the manufacturing, research, and development of solar energy products. His work spans the entire value chain, from raw materials to system level performance. His recent technical projects focused on testing and evaluation of solar modules for performance and long-term reliability.
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