What manufacturers and installers require
- Production data showing decline — typically 6+ months of monitoring data showing kWh/day below expected curve
- Thermal imaging identifying specific failed cells or panels
- Written diagnostic assessment from a qualified professional
- Original install documentation — invoice, system specs, panel serial numbers
- Photographic record of damage or wear
- Cleaning history — showing the panels have been properly maintained
What the network specialist provides
- Pre-filing visit — review your monitoring data, identify the warranty case
- On-site visit — thermal scan, visual documentation, panel serial number verification
- Written professional assessment — diagnostic conclusion, recommended remedy
- Photo package — date-stamped images of every affected panel
- Submission-ready PDF — formatted for the specific manufacturer's claim portal
- Optional: ongoing claim coordination if the manufacturer requests follow-ups ($50/hour additional)
What to do first
Before scheduling: pull your last 12 months of monitoring data, find your original installation documents (often emailed at install), and note the panel manufacturer and serial number range. The network specialist will use this to identify which warranty path applies.