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
- 765–780 W
- Electrical layer
- DC module output
- Construction
- Dual-glass
Performance guarantee: 30-year linear output
Wattage figure based on the sourced rated power (780 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 780 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 780 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 | 772 W | 761 W | 748 W | 734 W | 720 W | 707 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 current rating established for the retained AU scope. Scored model: AIKO-A780-GRH78Dw · checked 2026-08-17. Evidence.
Sources & references · checked 2026-09-01
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.
How far the evidence reaches
- OutputThird-party source1 of 8 rows beyond claim
- EnduranceManufacturer claim3 rows
- SafetyNot assessed for panels
- Warranty & backingManufacturer claim2 rows
- FitManufacturer claim4 rows
- FootprintNot assessed for panels
Rings, outside in: manufacturer claim, certified or regulator-listed, third-party source. The centre is review.solar's own measurement, empty for every product today. How the evidence puzzle works
Record revision. Built 2026-08-17 from AIKO's current exact datasheet (202601 V4.1), retrieved and text-extracted locally rather than read from the product page, because AIKO's product pages and its own datasheets disagree on published bands. The sheet ladder spans 765-800 W; the retained Australian range is 765-780 W because the CER approved-module export checked 2026-08-12 lists GRH78Dw only across that band, expiring 2029-01-04. First-market US and DE overlay review 2026-09-01: official regional catalogues recorded; Australian overlays and scores unchanged. Exact GRH78Dw warranty/service review 4 October 2026: the current global page still links the Utility-Scale 1.6 locator, whose body is titled Standard Modules. Its exact AIKO-Axxx-GRH78Dw coverage row was independently joined to the assessed AIKO-A780-GRH78Dw using the accepted same-day complete instrument and table review. Manufacturer-selected remedies, original-period retention, conditional freight, complete claim notice and conditional transfer are now explained. No printed effective date or revision established. Current Australian approval, sale and wider-bin benchmark applicability remain outside this bounded warranty review; the 780 W assessment and dated market evidence remain unchanged.
- Sourced valuesData card →
- Archived copy of the primary sourcePDF ↗
Show 2 more
- Independent energy yieldManufacturer ↗
- Independent energy yieldIndustry report ↗
Product record history
4 changes to this record · 8 products changed in this update
DE Evidence sources
- Before
- https://aikosolar.com/de/products/; https://aikosolar.com/de/products/stellar-2nplus78-dual-glass/; https://aikosolar.com/wp-content/uploads/2026/09/Neostar-2NPlus78_AIKO-A-GRH78Dw-765-800W_2465x1303x33mm_202608_V4.1_DE.pdf
- After
- https://aikosolar.com/de/products/; https://aikosolar.com/de/products/resources-center/; https://aikosolar.com/de/products/stellar-2nplus78-dual-glass/; https://aikosolar.com/wp-content/uploads/2025/11/WI-0BQM-M008-N-Type-ABC-Modulgarantie%EF%BC%88Standardmodule-fur-verteilte-PV-Anlagen%EF%BC%89-1.6-DE.docx; https://aikosolar.com/wp-content/uploads/2026/09/Neostar-2NPlus78_AIKO-A-GRH78Dw-765-800W_2465x1303x33mm_202608_V4.1_DE.pdf
DE Warranty confirmation
- Before
- unconfirmed
- After
- No longer recorded
DE Warranty scope
- Before
- Germany; no German warranty naming AIKO-A780-GRH78Dw was attached, so six-field terms are not transferred from the Australian N-Type ABC instrument.
- After
- Germany; the German-language N-Type ABC Modulgarantie 1.6 (WI-0BQM-M008, Standardmodule für verteilte PV-Anlagen), listed in the Garantiebedingungen tab of AIKO's German resource centre, names the family code AIKO-Axxx-GRH78Dw in clause 1, which is joined to the scored AIKO-A780-GRH78Dw. It provides a 15-year product warranty (clause 2.1) and a 30-year limited power warranty for frontal output (clause 2.2): 1% first-year loss, 0.35% annually thereafter and 88.85% retention at year 30. Paid Class II (20-year) and Class III (25-year) extended services are marked available for the German-speaking region (Germany, Austria, Switzerland) in clause 2.3.3; AIKO decides whether to provide them for each application, and they require registration and a paid warranty agreement when the sales contract is signed (clause 2.3.2). No effective date or revision beyond the 1.6 designation is printed. AIKO's English Distributed Common Modules warranty 1.6.3 (July 2026) does not list this family, and the German resource centre listed no German counterpart of 1.6.3 on 9 October 2026.
DE Warranty conditions
- Before
- Not previously recorded
- After
- labour: Costs of removing, repacking, installing and reinstalling the products are borne by the customer (clause 4.4.3). The warranty states no separate labour entitlement.; registration: The reviewed instrument states no registration condition for the standard Class I 15-year warranty; the preamble to clause 2 refers to a warranty start date specified in a warranty agreement, without stating a registration step. Paid Class II or Class III extended services require registration and filing by AIKO and the customer when the sales contract is signed, with a paid warranty agreement (clause 2.3.2). During an extended warranty period, changes to or re-dismantling of the installation require prior notice to AIKO for registration (clause 2.3.4.2). Written claim notice to cs@aikosolar.com is due within 30 days of the customer knowing or being able to know of the issue (clause 3.2) and is separate from registration.; remedy: Where AIKO is found responsible for a claim, AIKO may repair the modules, replace them or supply additional modules, or refund a residual value or a power-shortfall value difference (clauses 4.1-4.3). Repair or replacement keeps the original warranty period, which is not recalculated or extended, and comparable modules are supplied if the defective ones are no longer available (clause 4.4.1). Total compensation may not exceed the invoice amount paid for the defective modules (clause 6.3).; removal reinstallation: Removal, repacking, installation and reinstallation costs are borne by the customer (clause 4.4.3).; transferability: Transfer requires AIKO's agreement and a signed tripartite agreement. The modules must remain intact and non-removable at the original installation site, there must be no arrears or other payables (such as damages) under the module sales contract, and the new owner is bound by the entire warranty. If AIKO requests it, ownership evidence is due within 15 working days (clauses 7.1-7.3).; transport: The customer bears the testing fee provisionally; AIKO bears the testing fee and inspection freight if AIKO is found responsible (clause 4.4.2). Repaired or replacement modules are sent by AIKO to the original sales destination on the original sales-contract trade terms unless otherwise agreed; the premium, freight, customs and other reasonable expenses follow those terms, and the customer must contact AIKO in advance and provide service-provider invoices to claim them (clause 4.4.3).
1 change to this record · 12 products changed in this update
DE Evidence sources
- Before
- https://aikosolar.com/de/products/; https://aikosolar.com/de/products/stellar-2nplus78-dual-glass/; https://aikosolar.com/wp-content/uploads/2025/04/Stellar-2NPlus78_AIKO-A-GRH78Dw_765-800W_2465x1303x33mm_202601_V4.1_DE.pdf
- After
- https://aikosolar.com/de/products/; https://aikosolar.com/de/products/stellar-2nplus78-dual-glass/; https://aikosolar.com/wp-content/uploads/2026/09/Neostar-2NPlus78_AIKO-A-GRH78Dw-765-800W_2465x1303x33mm_202608_V4.1_DE.pdf
1 change to this record · 32 products changed in this update
DE Warranty confirmation
- Before
- Not previously recorded
- After
- unconfirmed
3 changes to this record · 1 product changed in this update
Source revision
- Current text
- Built 2026-08-17 from AIKO's current exact datasheet (202601 V4.1), retrieved and text-extracted locally rather than read from the product page, because AIKO's product pages and its own datasheets disagree on published bands. The sheet ladder spans 765-800 W; the retained Australian range is 765-780 W because the CER approved-module export checked 2026-08-12 lists GRH78Dw only across that band, expiring 2029-01-04. First-market US and DE overlay review 2026-09-01: official regional catalogues recorded; Australian overlays and scores unchanged. Exact GRH78Dw warranty/service review 4 October 2026: the current global page still links the Utility-Scale 1.6 locator, whose body is titled Standard Modules. Its exact AIKO-Axxx-GRH78Dw coverage row was independently joined to the assessed AIKO-A780-GRH78Dw using the accepted same-day complete instrument and table review. Manufacturer-selected remedies, original-period retention, conditional freight, complete claim notice and conditional transfer are now explained. No printed effective date or revision established. Current Australian approval, sale and wider-bin benchmark applicability remain outside this bounded warranty review; the 780 W assessment and dated market evidence remain unchanged.
The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.
Primary datasheetAU Warranty scope
- Before
- Covered by the AIKO N-Type ABC Utility-Scale Module Warranty 1.6, which names GRH78Dw and provides a 15-year product term and a 30-year power term.
- After
- The currently linked Utility-Scale 1.6 locator contains N-Type ABC Module Warranty, Standard Modules, explicitly naming AIKO-Axxx-GRH78Dw. It provides 15 years for product defects and 30 years for frontal power, beginning at the earlier of the stated delivery or factory-shipment window (within 30 or 90 days respectively). The power floor is measured at STC by an approved or mutually selected laboratory using an IEC 60904-9:2020 class 3A simulator, with generally ±3% measurement uncertainty: 1% first-year loss, 0.35% annually thereafter and 88.85% retention at year 30. This is contractual coverage, not measured field degradation or rear-side yield. No printed effective date or revision was established; the locator and hosting month do not establish supersession.
AU Warranty conditions
- Current text
- labour: Removal, reinstallation and site labour are borne by the customer.; registration: No initial registration requirement is stated in the reviewed instrument. Written claim notice to cs@aikosolar.com is due within 30 days of actual or constructive awareness, with claimant details, description, supporting evidence, serial numbers, purchase vouchers, module type, location and requested information. Claim notice is distinct from registration (clauses 3.1-3.3).; remedy: AIKO selects repair, replacement or additional modules, or a residual-value or power-shortfall refund for an accepted claim. Repair or replacement keeps the original warranty period; it does not restart coverage (clauses 4.1-4.4.1).; removal reinstallation: Removal and reinstallation are borne by the customer.; transferability: Transfer requires AIKO consent and a signed tripartite agreement, intact modules at the original site, no payment arrears and a new owner bound by the complete warranty. If requested, ownership evidence must be supplied within 15 working days (clauses 7.1-7.3).; transport: The customer provisionally pays testing; AIKO bears testing and inspection freight if found responsible. Remedy transport follows the original sales destination and trade terms unless otherwise agreed, with advance contact and service invoices for compensation (clauses 4.4.2-4.4.3).
The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.
AU market evidenceGuarantee period (yrs)+3 in JSON record
10 changes to this record · 152 products changed in this update
US Evidence sources
- Before
- Not previously recorded
- After
- https://aikosolar.com/en/products/; https://aikosolar.com/us/products/
DE Certifications
- Before
- Not previously recorded
- After
- The German Stellar 2N+78 page and German datasheet name AIKO-A-GRH78Dw 765-800W, including AIKO-A780-GRH78Dw.
Source revision
- Current text
- Built 2026-08-17 from AIKO's current exact datasheet (202601 V4.1), retrieved and text-extracted locally rather than read from the product page, because AIKO's product pages and its own datasheets disagree on published bands. The sheet ladder spans 765-800 W; the retained Australian range is 765-780 W because the CER approved-module export checked 2026-08-12 lists GRH78Dw only across that band, expiring 2029-01-04. First-market US and DE overlay review 2026-09-01: official regional catalogues recorded; Australian overlays and scores unchanged.
The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.
Primary datasheetDE Support Note
- Before
- Not previously recorded
- After
- aikosolar.com/de/products/stellar-2nplus78-dual-glass/ stays on the German host and names STELLAR 2N+78 Doppelglas 765W-800W. The linked German datasheet names AIKO-A780-GRH78Dw. Manufacturer listing is established; distributor inventory is not inferred.
DE Warranty scope
- Before
- Not previously recorded
- After
- Germany; no German warranty naming AIKO-A780-GRH78Dw was attached, so six-field terms are not transferred from the Australian N-Type ABC instrument.
DE Evidence sources
- Before
- Not previously recorded
- After
- https://aikosolar.com/de/products/; https://aikosolar.com/de/products/stellar-2nplus78-dual-glass/; https://aikosolar.com/wp-content/uploads/2025/04/Stellar-2NPlus78_AIKO-A-GRH78Dw_765-800W_2465x1303x33mm_202601_V4.1_DE.pdf
US Support Note
- Before
- Not previously recorded
- After
- aikosolar.com/us/products/ serves the English global product index (canonical /en/products/), not a United States catalogue. AIKO-A780-GRH78Dw is not named on a US-specific sale path. The Australian N-Type ABC warranty is not transferred.
DE Status
- Before
- Not previously recorded
- After
- available
2 changes to this record · 109 products changed in this update
2 changes to this record · 147 products changed in this update
Certification: AIKO-A780-GRH78Dw (IEC 61215-2021)
- Before
- Not previously recorded
- After
- accepted at: 2026-08-29; category: module; certification model: AIKO-A780-GRH78Dw (IEC 61215-2021); jurisdiction: au_cec; match method: exact_normalized_single_record; product slug: aiko-stellar-2nplus78-grh78dw-765-780-au; source key: data/aiko_stellar_2nplus78_grh78dw_au.json; source manufacturer name: Zhejiang Aiko Solar Technology Co Ltd; validation: approved at: 2026-03-13; candidate model: AIKO-A780-GRH78Dw (IEC 61215-2021); data confidence: High; evidence url: https://cer.gov.au/document/cec-approved-pv-modules-0; expires at: 2029-01-04; list data version: au-cer-module-2026-08-20-4e04f9838af2; list retrieved at: 2026-08-27T04:30:12Z; listing status at validation: listed
Certification model
- Before
- Not previously recorded
- After
- AIKO-A780-GRH78Dw (IEC 61215-2021)
5 changes to this record · 118 products changed in this update
Independent energy yield: Evidence status
- Before
- Not previously recorded
- After
- sourced
Independent energy yield
- Before
- Not previously recorded
- After
- Brand or series yield-tested; exact model not covered
Independent energy yield: Evidence sources
- Before
- Not previously recorded
- After
- https://aikosolar.com/au/news-aiko-claims-top-spot/; https://www.pv-magazine.com/2023/11/09/pv-magazine-test-september-2023-results/
3 changes to this record · 106 products changed in this update
1 change to this record · 7 products changed in this update
Archived Source
- Before
- Not previously recorded
- After
- sources/review.solar-zhejiang-aiko-solar-technology-co-ltd-aiko-stellar-2n-78-dual-glass-765-780w-au-datasheet.pdf
1 change to this record · 7 products changed in this update
Product record
kind: panel; brand: AIKO; name: Stellar 2N+78 Dual-Glass; model: AIKO-A765-GRH78Dw through AIKO-A780-GRH78Dw (156 half-cells, N-type ABC rear-contact); scored model AIKO-A780-GRH78Dw; score: 67
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.
- DE market evidence checked
- Core scorecard evidence checked
- US market evidence checked
- Australian certification source identity verified
- AU market evidence checked
- Series benchmark evidence checked
Scored by Solar Analytica Research
Further reading from Findings
- What changed in the benchmark in August 2026. · 7 min read
Stay across the benchmark.
New scorecards, score changes and market signals, published as they happen.
Our reading
Stellar 2N+78 Dual-Glass scores 66, placing 38 of 53 in the Premium Performance class against a class average of 67.8. Its strongest scoring dimension is architecture & design (94), running 8.0 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 55. Underlying specifications include a module efficiency of 24.3%, N-type ABC cell technology, 15-year product warranty backed by a 30-year performance term.
Dietreich Farquharson · review.solar