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 (520 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 520 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 520 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 | 515 W | 506 W | 496 W | 486 W | 475 W | 465 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 Ultra T 2.0 108 half-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 the exact Australian series. Scored model: STP520S-H54-Nkh+ · checked 2026-07-31. Evidence.
Sources & references · checked 2026-07-31
Strong evidence coverage
12 of 12 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
- AU market evidence checked
Scored by Solar Analytica Research
Stay across the benchmark.
New scorecards, score changes and market signals, published as they happen.
Our reading
Ultra T 2.0 108 half-cell scores 59, placing 35 of 35 in the Global Tier-1 class against a class average of 71.7. Its strongest scoring dimension is architecture & design (78), above the class average of 76. Durability (verified) scores 40, the lowest pillar for this product. The class average on durability (verified) is 68. Underlying specifications include a module efficiency of 23.4%, TOPCon cell architecture, 15-year product warranty backed by a 30-year performance term.