Understanding Anomaly Groups

Understanding Anomaly Groups




Health & Safety Impact

Items that may pose an immediate risk or liability to the plants health and safety requirements.


  1. Visibly Damaged Modules
  2. Heated Substrings & Hot Spots
  3. Elevated Hot Spot ΔTm Results
  4. Multiple Hot Cells with "Potential PID" which can be attributable to negative earthing arrangement

Corrective Maintenance Performance Impact

Abnormalities occurring in such frequency or intensity to recommend for plant operators to take immediate corrective maintenance intervention to mitigate observational risks.


  1. Unidentified Heated Modules
  2. Unidentified Heated Strings
  3. Heated Sub & Multiple Sub Strings
  4. Active Bypass Diodes
  5. Heated DC Junction Boxes
  6. Tracker Mis Alignments

Preventative Maintenance Performance Impact

Abnormalities occurring in such frequency or intensity to recommend for plant operators to schedule observational risks into the preventative maintenance plan for additional inspection & testing.


  1. Unidentified Hot & Multiple Hot Spots
  2. Heated Modules secondary to CM classifications.
  3. Overtightened Clamps
  4. Minor soiling or vegetation growth
  5. Surface Scratches

Low Effort / High Return Impact

Relates to items when actioned result in measurable improvements to plant performance for the low effort typically required to rectify these items.


  1. Module Cleaning
  2. Landscaping
  3. Inter Row Shade Impacts
  4. Interior Object Shade Impacts
  5. Exterior Plant Shade Impacts

Warranty Claim

Items displaying observational patterns typically associated with defects covered by industry standard manufacturer terms and conditions. Asset Owners should contact Above for support with dedicated remediation planning. 



  1. Delamination
  2. Bus Bar Corrosion & Hot Spots
  3. Heated Sub Strings
  4. Heated Junction Boxes
  5. Heated Hypercells


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