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
- 620–645 W
- Electrical layer
- DC module output
- Construction
- Bifacial, Dual-glass
Performance guarantee: 30-year linear output
Wattage figure based on the sourced rated power (645 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 645 W at STC.
How this is modelled
Modelled from this panel’s own published first-year (1.5%) and annual (0.33%/yr) degradation figures, compounded against its 645 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 | 635 W | 627 W | 616 W | 606 W | 595 W | 584 W |
| % of rated | 98.5% | 97.2% | 95.5% | 93.9% | 92.2% | 90.6% |
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 rating in this exact published US series. Scored model: Q.TRON XL-G2.3/BFG 645 · checked 2026-07-16. Evidence.
Sources & references · checked 2026-08-04
Strong evidence coverage
22 of 27 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 →
- Warranty summary12-year product warranty →
Show 4 more
- Verified reliabilityIndependent test ↗
- Carbon footprint / EPDManufacturer ↗
- Independent energy yieldIndependent test ↗
- Financial strength & warranty backingManufacturer ↗
Evidence timeline
Recorded verification events for this scorecard. These are evidence checks, not historical score snapshots.
- Core scorecard evidence checked
- US market evidence checked
- AU market evidence checked
- Series benchmark evidence checked
- Plain-language warranty summary checked
Scored by Solar Analytica Research
Stay across the benchmark.
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Our reading
Q.TRON XL-G2.3/BFG scores 76, placing 2 of 55 in the Global Tier-1 class and within 0.8 points of the class leader. Its strongest scoring dimension is sustainability (100), running 35.8 points above the class average on this dimension. Underlying specifications include a module efficiency of 23.1%, N-type TOPCon cell technology, 12-year product warranty backed by a 30-year performance term.