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
- 475–490 W
- Electrical layer
- DC module output
- Construction
- Monofacial, Dual-glass
What the documents establish
Published evidence, source-reviewed non-disclosure and unresolved questions remain separate from the product score.
Performance guarantee: 30-year linear output
Wattage figure based on the sourced rated power (490 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 490 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 490 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 | 485 W | 478 W | 470 W | 461 W | 453 W | 444 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 global 470 and 495 W bins are excluded from the current Australian regulator intersection. Scored model: JAM48D50-490/LR · checked 2026-08-27. Evidence.
Sources & references · checked 2026-09-01
Strong evidence coverage
14 of 14 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. Exact technical and warranty sources plus CER source version dated 20 August 2026, checked 2026-08-27 Panel yield register refresh 2026-08-31: Independent energy yield closed or held from the reviewed Kiwa PVEL source set without transferring nearby family, power-class or BOM rows. First-market US and DE overlay review 2026-09-01: official regional catalogues recorded; Australian overlays and scores unchanged.
- Sourced valuesData card →
- Cell configurationManufacturer ↗
Show 3 more
- Module efficiency (%)Manufacturer ↗
- Independent energy yieldIndependent test ↗
- Independent energy yieldIndependent test ↗
Product record history
9 changes to this record · 152 products changed in this update
Source revision
- Current text
- Exact technical and warranty sources plus CER source version dated 20 August 2026, checked 2026-08-27 Panel yield register refresh 2026-08-31: Independent energy yield closed or held from the reviewed Kiwa PVEL source set without transferring nearby family, power-class or BOM rows. 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
- jasolar.eu residential catalogue does not name JAM48D50-490/LR. DeepBlue 4.0 D40 families and JAM54D50 /GR are different identities and are not transferred.
DE Evidence sources
- Before
- Not previously recorded
- After
- https://www.jasolar.eu/produkte/deep-blue-40; https://www.jasolar.eu/residential/
US Support Note
- Before
- Not previously recorded
- After
- jasolar.com returns HTTP 403. No official United States catalogue was retrieved. Held is not unavailable. JAM54D50 /GR is a different identity and is not transferred.
2 changes to this record · 109 products changed in this update
2 changes to this record · 61 products changed in this update
Independent energy yield: Evidence sources
- Before
- https://cdn.enfsolar.com/z/pp/2026/5/05ih015e1fm1wt/bee4da61878d342.pdf; https://www.enfsolar.com/pv/panel-datasheet/crystalline/71764
- After
- https://scorecard.pvel.com/methodology/; https://scorecard.pvel.com/top-performers/; https://scorecard.pvel.com/wp-content/uploads/2022-PVEL-PV-Module-Reliability-Scorecard-Summary.pdf; https://scorecard.pvel.com/wp-content/uploads/2024-PV-Module-Reliability-Scorecard.pdf
Source revision
- Before
- Exact technical and warranty sources plus CER source version dated 20 August 2026, checked 2026-08-27
- After
- Exact technical and warranty sources plus CER source version dated 20 August 2026, checked 2026-08-27 Panel yield register refresh 2026-08-31: Independent energy yield closed or held from the reviewed Kiwa PVEL source set without transferring nearby family, power-class or BOM rows.
2 changes to this record · 147 products changed in this update
549615F4Ed76
- Before
- Not previously recorded
- After
- accepted at: 2026-08-29; category: module; certification model: JAM48D50-490/LR (IEC 61215-2021); jurisdiction: au_cec; match method: exact_normalized_single_record; product slug: ja-solar-deepblue5-jam48d50-475-490-au; source key: data/jasolar_deepblue5_jam48d50_lr_au.json; source manufacturer name: JA Solar Technology Co Ltd; validation: approved at: 2026-07-08; candidate model: JAM48D50-490/LR (IEC 61215-2021); data confidence: High; evidence url: https://cer.gov.au/document/cec-approved-pv-modules-0; expires at: 2029-07-08; 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
- JAM48D50-490/LR (IEC 61215-2021)
1 change to this record · 1 product changed in this update
Product record
kind: panel; brand: JA Solar; name: DeepBlue 5.0 JAM48D50 48-cell; model: JAM48D50-475/LR, -480/LR, -485/LR and -490/LR; scored JAM48D50-490/LR; score: 59.1
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
- DE market evidence checked
- US market evidence checked
- Australian certification source identity verified
- AU market evidence checked
- Series benchmark evidence checked
Scored by Solar Analytica Research
Stay across the benchmark.
New scorecards, score changes and market signals, published as they happen.
Our reading
DeepBlue 5.0 JAM48D50 48-cell scores 58, placing 52 of 60 in the Global Tier-1 class against a class average of 64.0. Its strongest scoring dimension is performance & degradation (78), running 5.2 points above the class average on this dimension. Durability (verified) scores 41, the lowest pillar for this product. The class average on durability (verified) is 56. Underlying specifications include a module efficiency of 24.5%, N-type TOPCon cell technology, 15-year product warranty backed by a 30-year performance term.