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
- 440–465 W
- Electrical layer
- DC module output
- Construction
- Bifacial, 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 (465 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. Rated 465 W at STC.
How this is modelled
Modelled from this panel’s own published first-year (1%) and annual (0.4%/yr) degradation figures, compounded against its 465 W rated (STC) output. This is a datasheet-derived estimate, not a field measurement or a warranty guarantee. Actual output also depends on site irradiance, temperature, soiling and system design.
| Year | 1 | 5 | 10 | 15 | 20 | 25 |
|---|---|---|---|---|---|---|
| Watts | 460 W | 453 W | 444 W | 434 W | 425 W | 416 W |
| % of rated | 99.0% | 97.4% | 95.4% | 93.4% | 91.4% | 89.4% |
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 rating in this exact physical and electrical series. Scored model: TWMNH-48HD465 · checked 2026-07-31. 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.
TW Solar TWMNH-48HD 48-cell 465 W · Solar panel
Australian evidence checked 2026-08-04.
Covered4 sources
Australian warranty scope: Australia; the exact TWMNH-48HD family has a 15-year product term and 30-year power term, with 1% first-year degradation, 0.4% annual degradation thereafter and 87.4% at year 30.
Structured claim terms: Recorded.
- Term
- 15 yr product / 30 yr performanceStated in the structured comparison
- Product remedy
- CoveredAt Tongwei's choice: repair, replacement or additional modules, power or financial compensation, or refund and return.
- Labour
- CoveredDirect repair work selected by Tongwei is covered; independent site labour is not separately promised.
- Freight
- CoveredFreight for additional products is covered, excluding insurance, air freight, customs, tariffs and buyer-caused extra costs.
- Removal and reinstallation
- Not statedDismantling, repacking, installation and reinstallation are borne by the buyer.
- Transferability
- CoveredTransfers to a lawful successor or assignee while the modules remain at the original site, with no arrears and acceptance of the complete warranty.
- Registration and conditions
- Not statedNo pre-registration requirement is stated; claims require ownership, purchase, serial and defect evidence.
Sources & references · checked 2026-08-04
Strong evidence coverage
15 of 15 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.
- Sourced valuesData card →
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 source checked
Scored by Solar Analytica Research
Stay across the benchmark.
New scorecards, score changes and market signals, published as they happen.
Our reading
TWMNH-48HD 48-cell scores 62, placing 36 of 43 in the Global Tier-1 class against a class average of 69.3. Its strongest scoring dimension is architecture & design (78), above the class average of 75. Guarantee & Backbone scores 41, the lowest pillar for this product. The class average on guarantee & backbone is 62. Underlying specifications include a module efficiency of 23.3%, N-type TOPCon cell technology, 15-year product warranty backed by a 30-year performance term.