The assessment
How it scores, by category
Market position
The data
Solar module
Produces DC electricity at the roof. It contains no system-level power conversion or storage.
- Product role
- None in the module.
- Published range
- 645–660 W
- Electrical layer
- DC module output
- Construction
- Bifacial, Dual-glass
Performance guarantee: 30-year linear output
Wattage figure based on the sourced rated power (660 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 660 W at STC.
How this is modelled
Modelled from this panel’s own published first-year (1%) and annual (0.35%/yr) degradation figures, compounded against its 660 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 | 653 W | 644 W | 633 W | 621 W | 610 W | 598 W |
| % of rated | 99.0% | 97.6% | 95.8% | 94.1% | 92.3% | 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 uses the highest exact bin inside the retained Australian regulator intersection. Scored model: AIKO-A660-GRH66Dw · checked 2026-08-21. 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.
AIKO Stellar 2N+66 Dual-Glass 660 W · Solar panel
Australian evidence checked 2026-08-21.
Covered4 sources
Australian warranty scope: The Utility-Scale Module Warranty 1.6 names GRH66Dw and provides 15 years of product cover and 30 years of performance cover.
Structured claim terms: Recorded.
- Term
- 15 yr product / 30 yr performanceStated in the structured comparison
- Product remedy
- ConditionalAIKO may repair or replace an accepted defective module.
- Labour
- Not statedRemoval, installation and reinstallation are borne by the customer.
- Freight
- ConditionalFreight follows the original trade terms; testing and inspection freight is covered only where AIKO is found responsible.
- Removal and reinstallation
- Not statedRemoval and reinstallation are borne by the customer.
- Transferability
- CoveredTransfer requires AIKO's agreement and a signed tripartite agreement, and the modules must remain at the original location.
- Registration and conditions
- CoveredClaims must be made in writing within 30 days of awareness and include serial numbers, purchase evidence and supporting defect evidence.
Sources & references · checked 2026-08-21
Strong evidence coverage
17 of 17 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.
Record revision. Built from the exact manufacturer sheet and the CER export checked 2026-08-12. The global sheet spans 645-680 W; the retained Australian intersection is 645-660 W. GRH66Dw also labels another current Stellar generation, but the 80 +/- 5% bifacial factor and +70 C upper operating limit make this a distinct evidence object.
- Sourced valuesData card →
- Archived copy of the primary sourcePDF ↗
Product record history
Product record
kind: panel; brand: AIKO; name: Stellar 2N+66 Dual-Glass; model: AIKO-A645-GRH66Dw through AIKO-A660-GRH66Dw (132 half-cells, N-type ABC rear-contact, bifacial dual glass); scored model AIKO-A660-GRH66Dw; score: 68.5
Primary datasheet
This is review.solar's publication history. It does not claim the product changed on the recorded date, and it excludes compatibility, system pairing, installation suitability and relative leaderboard prose. Open the complete JSON record.
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 evidence checked
Scored by Solar Analytica Research
Stay across the benchmark.
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Our reading
Stellar 2N+66 Dual-Glass scores 68, placing 26 of 53 in the Premium Performance class against a class average of 69.0. Its strongest scoring dimension is architecture & design (94), running 7.5 points above the class average on this dimension. Guarantee & Backbone scores 44, the lowest pillar for this product. The class average on guarantee & backbone is 54. Underlying specifications include a module efficiency of 24.4%, N-type ABC cell technology, 15-year product warranty backed by a 30-year performance term.