PV Damage Assessment: When Is It Needed?

A PV damage event can be costly – but poor evidence preservation often makes it even more expensive. A damage assessment provides a substantiated basis for the next steps.

Typical Situations

• Insurance: Fire, storm, hail, overvoltage, animal damage, vandalism
• Warranty: Installation errors, leaks, incorrect design
• Disputes: Operator vs. installer / service provider / supplier
• Investors: Assessment of technical risks before purchase/sale

What a Good Damage Assessment Contains

• Evidence preservation (photos, documentation, current condition)
• Comparison with records: planning, string plan, test protocols
• Technical assessment of the damage pattern
• Delimitation of plausible causes (what supports which / rules out which?)
• Remedial action plan (safety → restoration → prevention)

What to Collect in Advance

• Photos/videos taken directly after the event
• Fault messages/inverter logs
• System documentation (plan, string plan, component list)
• Commissioning/test protocols
• Event information (date, weather, grid events, fire brigade report if available)

Why Time Is a Factor

Many findings change over time: repairs, dismantling, weather, cleaning work. The later the assessment, the more difficult a substantiated evaluation becomes. Early evidence preservation is therefore often decisive.

FAQ

Who benefits from a PV damage assessment?

Operators, insurers, installers, lawyers and investors – whenever an objective technical assessment is required.

What documents should I have ready?

Photos, logs, system documentation (plan/string plan), component list, test protocols and information about the event.

How quickly should you act after damage occurs?

As early as possible. Evidence preservation is time-critical because the condition can change due to many factors.