The assessment
How it scores, by category
Market position
The data
N-type TOPCon module
Produces DC electricity at the roof. It contains no system-level power conversion or storage.
- Product role
- None in the module.
- Published range
- 490–515 W
- Electrical layer
- DC module output
- Construction
- Monofacial, Dual-glass
What the documents establish
Published evidence, source-reviewed non-disclosure and unresolved questions remain separate from the product score.
Performance guarantee: 30-year linear output
Wattage figure based on the sourced rated power (515 W) applied to the guaranteed floor; modular/format differences aside, this is the same rated-power spec shown above.
Modelled effective output, year by year
Year 1 to year 25, at 30°C and 1000 W/m². Rated 515 W at STC.
How this is modelled
Compounds this panel’s own published first-year (1%) and annual (0.4%/yr) degradation figures against its 515 W rated (STC) output, then derates for the ambient and irradiance selected. Output is scaled roughly linearly with irradiance (1000W/m² against the 1000 W/m² STC reference). This is the dominant real-world effect at low light, whether from cloud, shading or soiling. Output is then further derated for heat, from this panel’s own NOCT (43°C) and temperature coefficient (-0.29%/°C), giving an estimated cell temperature of 59°C at that ambient and irradiance. A datasheet-derived estimate, not a field measurement or a warranty guarantee: it does not account for this panel’s own low-light efficiency response (a separate, less-consistently-published spec), or for wind and system design. See NOCT and temperature coefficient in the glossary.
Control panel
| Year | 1 | 5 | 10 | 15 | 20 | 25 |
|---|---|---|---|---|---|---|
| Watts | 460 W | 453 W | 443 W | 434 W | 425 W | 415 W |
| % of rated | 89.3% | 87.9% | 86.1% | 84.3% | 82.5% | 80.6% |
Verification & sources
Market context
Global evidencechange in the site menu
Global benchmark. This scorecard is benchmarked globally. A global score does not imply local availability, certification, warranty coverage, or installer compatibility.
Benchmark anchor. The score is anchored to the highest published AU rating for this exact series. Scored model: TSM-NEG18R.25 · checked 2026-07-16. Evidence.
Australian warranty decision
1 product record
Read the Australian warranty as a claim pathway: the headline term is separate from remedy, labour, freight, site work, transfer and registration conditions.
Trina Solar Vertex S+ NEG18R.25 515 W · Solar panel
Australian evidence checked 2026-08-02.
Covered4 sources
Australian warranty scope: Australia; the global warranty expressly includes TSM-xxxNEG18R.25 and the Australian datasheet publishes 25-year product and 30-year performance terms. The voluntary warranty covers Trinasolar's direct repair cost and remedy delivery transport but leaves removal and reinstallation with the buyer. It transfers at the original site and Australian purchases must be through an authorized reseller.
Structured claim terms: Recorded.
- Term
- 25 yr product / 30 yr performanceStated in the structured comparison
- Product remedy
- CoveredAt Trinasolar's choice: repair, power-shortfall or residual-value refund, additional modules, or replacement with new or remanufactured products.
- Labour
- CoveredTrinasolar bears the direct cost of its chosen product repair. The voluntary warranty does not promise separate on-site labour or installation reimbursement.
- Freight
- CoveredDelivery transport for repaired, replacement or additional products is covered, excluding insurance, air freight, customs clearance, duties and specified buyer costs.
- Removal and reinstallation
- Not statedRemoval, handling, repacking, installation and reinstallation remain with the buyer.
- Transferability
- CoveredThe warranty transfers while the modules remain at the original installation location and have not been moved or disassembled.
- Registration and conditions
- Not statedNo product pre-registration requirement is stated. Claims use Trinasolar's service portal and require ownership authority plus purchase and defect evidence; Australian purchases must be through an authorized reseller.
Sources & references · checked 2026-08-06
Strong evidence coverage
29 of 29 scored criteria link directly to a published source.
Values marked estimated, derived, or not found remain visible on the audit sheet and do not carry the same evidential weight as a linked source. Coverage measures direct links, not an independent guarantee that a claim is correct.
Record revision. Exact family documentation reviewed 2026-08-06
- Sourced valuesData card →
- Warranty summary25-year product warranty →
Show 6 more
- Archived copy of the primary sourcePDF ↗
- Verified reliabilityIndependent test ↗
- Verified reliabilityIndependent test ↗
- Financial strength & warranty backingWarranty ↗
- Performance assuranceWarranty ↗
- Certified installer networkManufacturer ↗
Evidence timeline
Recorded verification events for this scorecard. These are evidence checks, not historical score snapshots.
- Core scorecard evidence checked
- AU market evidence checked
- Series benchmark evidence checked
- Plain-language warranty summary checked
Scored by Solar Analytica Research
Further reading from Findings
Stay across the benchmark.
New scorecards, score changes and market signals, published as they happen.
Our reading
Vertex S+ NEG18R.25 scores 66, placing 31 of 55 in the Global Tier-1 class against a class average of 66.5. Its strongest scoring dimension is guarantee & backbone (80), running 19.8 points above the class average on this dimension. Durability (verified) scores 48, the lowest pillar for this product. The class average on durability (verified) is 59. Underlying specifications include a module efficiency of 23.2%, N-type TOPCon cell technology, 25-year product warranty backed by a 30-year performance term.