Your warranty, measured every year.
Sinovoltaics holds the FAT baseline of every system it tested - the reference every warranty dispute needs. Annual validation compares delivered capacity and RTE against your warranty curves, so a claim, when needed, is already documented.
What warranty validation covers
BESS warranty validation is the annual, independent measurement of delivered capacity and round-trip efficiency against contractual warranty curves - using operational data and factory baselines - producing documented evidence for compliance confirmation or claim escalation.
Included:
- Warranty curve & contract review - what exactly is guaranteed: capacity, RTE, availability, degradation path, measurement method, cycling assumptions
- Annual capacity / RTE validation vs the warranty curves - computed from operational data via BESSecure, rack by rack
- FAT baseline as the evidence chain - delivered performance traced from the factory fingerprint forward
- Shortfall documentation - deviations quantified, dated and mapped to the warranty clauses they trigger
- Claim documentation & manufacturer negotiation - technically argued with the OEM’s own data language
- Corrective-action & replacement verification - remedies measured, not just delivered
Deliverables: annual warranty validation report per site, shortfall register, claim dossier and negotiation representation where escalated.
The fine print is a measurement problem
BESS performance warranties look generous until you read how they’re measured. Capacity guarantees hinge on cycling assumptions, temperature windows, state-of-charge ranges and test procedures - and the party holding the raw data usually decides what the numbers say. Industry advisors have documented the pattern well; almost nobody sells the fix.
The fix is structural, and it has three parts:
1. A baseline the OEM cannot dispute - the FAT measurement, taken before shipment, ideally re-confirmed at SAT
2. Contractual data access - raw-data rights written into procurement (ESCA framework), so validation doesn’t depend on vendor cooperation
3. Annual measurement - shortfalls found in year 3 of a 10-year warranty, not at year 9 when the evidence trail is cold
With those in place, warranty enforcement stops being a dispute and becomes an annual report.
Scheduled beats reactive
Reactive claiming - noticing underperformance, reconstructing history, arguing measurement methodology - takes years and often fails on evidence. Scheduled validation inverts it: every year the delivered capacity is measured, compared and filed. When a breach appears, the claim is 80% documented on the day it’s discovered, and every previous year’s report corroborates the trend.
Owners with annual validation reports settle claims. Owners without them negotiate goodwill.
When you need this
- Systems with capacity or RTE guarantees past year one
- Warranty milestones (capacity tests, degradation checkpoints) approaching
- Suspected underperformance the integrator’s reports don’t show
- Augmentation decisions that depend on true fade rates
- Portfolio wanting warranty exposure managed under one retainer
Engagement model
Retainer plus per-claim fees; the annual validation report is included in the retainer. Bundles naturally with the BESSecure Portfolio Program (same data pipeline) and the Annual Site Inspection (same annual rhythm).
A warranty you don’t measure is a brochure. → Request a warranty review
