End-of-Warranty Inspection Campaigns

15+ Years

At the PV and BESS Factories in Asia

25+ GWp

Zero Risk Solar® Projects

70+

Experts

350+

PV & BESS Factories Audited

Inspect before your rights expire.

Fixed deadlines decide your claims: the EPC workmanship warranty (typically year 2) and the module product warranty (year 10-12). Sinovoltaics inspects your assets before each expiry - while claims can still be filed - and delivers a claim-ready evidence package per finding.
[Build your warranty-expiry calendar]

What an end-of-warranty campaign covers

An end-of-warranty inspection is a deadline-triggered site campaign performed before an EPC workmanship or module product warranty expires, documenting every claimable defect - workmanship punch lists, EL/IR module sampling - as evidence while claims can still be filed.

Included:

  • Workmanship punch list before EPC warranty expiry: mounting, cabling, connectors, wire management, civil works
  • Module EL / IR sampling before product warranty expiry: microcracks, PID, diode failures, degradation beyond warranty curves
  • Claim-ready evidence package per finding - defect, location, serial number, severity, warranty clause it triggers
  • Fleet-wide warranty-expiry calendar - every asset’s deadlines mapped, campaigns scheduled ahead
  • Pre-booked campaign slots across your portfolio, years in advance

Deliverables: campaign report per site, evidence package per claimable finding, claim recommendation with deadline register, hand-over into claim management where pursued.

Warranty value expires silently

No one sends you a reminder that your rights lapse next quarter. Assets change owners, asset managers rotate, and the year-2 EPC deadline passes during a busy construction season elsewhere in the portfolio. The defects were there - unfound, unclaimed, and after the deadline, permanently yours.

The economics are lopsided: a campaign costs a fraction of a single successful workmanship or module claim. Every year, owners forfeit claims worth multiples of the inspection that would have found them - not because the defects weren’t real, but because nobody looked before the date.

The calendar is the product

One inspection is a service. The warranty-expiry calendar is a system:

  1. We map every asset in your fleet: COD dates, EPC warranty terms, module product and performance warranty milestones
  2. Campaigns are scheduled 6-12 months before each expiry - and pre-booked across the portfolio
  3. Each campaign feeds findings into claims while the clock still runs
  4. The calendar rolls forward as you acquire assets

Fleet owners stop asking “should we inspect?” The calendar answers it per asset, per deadline, years ahead.

When you need this

  • Assets approaching year 2 after COD (EPC workmanship deadline)
  • Fleets with modules entering years 8-12 (product warranty window)
  • Newly acquired portfolios with undocumented warranty positions
  • Performance warranties with degradation thresholds worth verifying
  • Insurers or investors asking how warranty rights are managed


Engagement model

Per-campaign fees under a fleet framework agreement; slots bookable years ahead. Strongest paired with the Annual Plant Health Program - annual trending flags claim candidates early, the campaign documents them before the deadline.

Your deadlines are already set. Your calendar isn’t. → Build your warranty-expiry calendar

Frequently asked questions

  • When should the campaign run relative to the expiry date? Six to twelve months before. Findings need time for documentation, claim filing and OEM/EPC response - filing on the deadline weakens your position.
  • What if the campaign finds nothing claimable? Then you have documented, dated evidence that the asset was sound at warranty expiry - which itself has value at refinancing, sale or insurance renewal.




  • Can you reconstruct warranty positions on acquired assets? Yes. Contract review establishes the deadlines; inspection establishes the condition. Missing factory baselines reduce origin-assignment strength but rarely eliminate claims.
  • Who negotiates the claims? Warranty Claim Management takes each finding from evidence to settlement - one hand-over, no re-inspection.

Assuring solar PV and energy storage quality on-site in Asia-Pacific for over 10 years...

Since 2009, Sinovoltaics has audited over 350+ solar PV and battery energy storage factories across Asia-Pacific.

Our solar PV and battery energy storage component-specialized auditors are accredited with the International Register of Certificated Auditors (IRCA) and are proud to support you with a comprehensive and insightful assessment of prospective suppliers by using their extensive experience in the operations management of PV and BESS factories in Asia.

Headquartered in Hong Kong, and with offices in Shanghai, Switzerland, USA, and Vietnam and local quality inspection and audit teams in India, South Korea, Thailand, and Türkiye, we are strategically located close to all solar PV component and battery energy storage manufacturing bases and shipping ports in Asia and North America.

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