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 (475 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 475 W at STC.
How this is modelled
Compounds this panel’s own published first-year (1%) and annual (0.35%/yr) degradation figures against its 475 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 (42°C) and temperature coefficient (-0.26%/°C), giving an estimated cell temperature of 58°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 | 431 W | 424 W | 417 W | 409 W | 402 W | 394 W |
| % of rated | 90.6% | 89.4% | 87.8% | 86.1% | 84.5% | 82.9% |
Two things to check
Ask the installer: Will the quote name the exact Neostar 2P+ 54-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 series. Scored model: AIKO-A475-MAH54Dw · checked 2026-06-16. Evidence.
Sources & references · checked 2026-06-16
Strong evidence coverage
20 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.
- Sourced valuesData card →
- Warranty summary25-year product warranty →
Show 6 more
- Verified reliabilityIndependent test ↗
- Carbon footprint / EPDManufacturer ↗
- Independent energy yieldIndependent test ↗
- Financial strength & warranty backingManufacturer ↗
- Manufacturing track recordManufacturer ↗
- Warranty insurance (verified)Warranty ↗
Help strengthen this record
These are published evidence gaps, not private submissions. A source is reviewed under the same methodology whether it comes from a reader, installer or manufacturer.
- NOCT (C)The current record is estimated. A primary or independent source is requested.Offer a source
- Salt mist (IEC 61701)A direct public source has not been located for this scored value.Offer a source
- Warranty transferabilityThe current record is estimated. A primary or independent source is requested.Offer a source
Evidence timeline
Recorded verification events for this scorecard. These are evidence checks, not historical score snapshots.
- AU market evidence checked
- Core scorecard evidence checked
- Series benchmark source checked
- Plain-language warranty summary checked
Scored by Solar Analytica Research
Stay across the benchmark.
New scorecards, score changes and market signals, published as they happen.
Our reading
Neostar 2P+ 54-cell scores 78, placing 5 of 11 in the Premium Performance class against a class average of 77.0. Its strongest scoring dimension is architecture & design (90), running 7.1 points above the class average on this dimension. Guarantee & Backbone scores 64, the lowest pillar for this product. The class average on guarantee & backbone is 74. Underlying specifications include a module efficiency of 23.8%, Back-contact cell architecture, 15-year product warranty backed by a 30-year performance term.