The assessment
How it scores, by category
Market position
The data
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% |
Two things to check
Ask the installer: Will the quote name the exact TWMNH-48HD 48-cell model and wattage, and who covers labour if the module warranty is used?
Verification & sources
Market context
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.
Sources & references · checked 2026-07-31
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
- 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 32 of 33 in the Global Tier-1 class against a class average of 72.3. Its strongest scoring dimension is architecture & design (78), above the class average of 76. Guarantee & Backbone scores 41, the lowest pillar for this product. The class average on guarantee & backbone is 63. Underlying specifications include a module efficiency of 23.3%, TOPCon cell architecture, 15-year product warranty backed by a 30-year performance term.