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Global Tier-1

Q.TRON BLK S-G3R.12+/BFG

435–445 W · N-type TOPCon · Bifacial · Dual-glass

QcellsReleased 2023

69/ 100

Very good

Global

15+ Yrs Field-ProvenBifacialGlass-Glass

The verdict. In our Global Tier-1 class, Qcells Q.TRON BLK S-G3R.12+/BFG leads on sustainability.

19thof 66 in Global Tier-1Top halfclass average 63.6
Compare this panel →Ask Watt →

The assessment

How it scores, by category

Architecture & Design72
Efficiency & Yield60
Durability (verified)55
Performance & Degradation77
Guarantee & Backbone76
Sustainability100

Market position

19thof 66 in Global Tier-1Top half
456976

Our reading

Q.TRON BLK S-G3R.12+/BFG scores 69, placing 19 of 66 in the Global Tier-1 class against a class average of 63.6. Its strongest scoring dimension is sustainability (100), running 41.2 points above the class average on this dimension. Durability (verified) (55) is the dimension with the most room to move. Underlying specifications include a module efficiency of 22.3%, N-type TOPCon cell technology, 25-year product warranty backed by a 30-year performance term.

The data

Power
445W
Efficiency
22.3%
Cell
N-type TOPCon
Temp coeff
-0.3%/°C
Technology architecture

N-type TOPCon module

Architecture guide

Produces DC electricity at the roof. It contains no system-level power conversion or storage.

Product role
None in the module.
Published range
435–445 W
Electrical layer
DC module output
Construction
Bifacial, Dual-glass
Architecture describes the product boundary. It is not a system design or an equipment-pairing decision.

Performance guarantee: 30-year linear output

445 Wrated396W at yr 30
80859095100Guaranteed floor 88.9%Product 25yr88.9%0yr5yr10yr15yr20yr25yr30yr
Projected outputGuaranteed floor: 88.9% at yr 30Product warranty ends yr 25

Wattage figure based on the sourced rated power (445 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

391W359W

Year 1 to year 25, at 30°C and 1000 W/m². Rated 445 W at STC.

How this is modelled

Compounds this panel’s own published first-year (1.5%) and annual (0.33%/yr) degradation figures against its 445 W rated (STC) output, then derates for the ambient and irradiance selected. Output is scaled roughly linearly with irradiance (1000 W/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 (45°C) and temperature coefficient (-0.3%/°C), giving an estimated cell temperature of 61°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

30°C
1000 W/m²
Year1510152025
Watts391 W385 W379 W372 W366 W359 W
% of rated87.8%86.6%85.1%83.7%82.2%80.7%
Before you buy
Local positionUse a market view to check local availability, approvals and warranty scope.
Ask the installerWill the quote name the exact Q.TRON BLK S-G3R.12+/BFG model and wattage, and who covers labour if the module warranty is used?

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 is anchored to the highest published rating in this exact series. Scored model: Q.TRON BLK S-G3R.12+/BFG 445 · checked 2026-08-01. Evidence.

Sources & references · checked 2026-09-20

Strong evidence coverage

25 of 25 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

3 of 5 assessed questions reach beyond manufacturer claim; none is measured by review.solar.123456
  1. OutputThird-party source1 of 10 rows beyond claim
  2. EnduranceThird-party source1 of 7 rows beyond claim
  3. SafetyNot assessed for panels
  4. Warranty & backingThird-party source1 of 3 rows beyond claim
  5. FitManufacturer claim3 rows
  6. FootprintManufacturer claim2 rows

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. Q.TRON BLK S-G3R.12+/BFG exact Rev01 sheet rechecked 2026-08-23; LeTID and PID scope linked and unsupported Advanced MBB scoring detail withheld. AU, US and DE remain unavailable for the exact record. India existing-catalogue panel ALMM review 2026-09-02: IN overlays recorded against List-I revision 03.08.2026; scores unchanged. NMOT 45 +/- 2 C joined from the Rev01 datasheet on 2026-09-20.

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.

View the open evidence register
Change ledger

Product record history

3 changes to this record · 10 products changed in this update
  1. Record updated

    DE Warranty scope

    Current text
    Qcells' 2024 German release documented 25-year product and 30-year performance terms for the then-current Q.TRON G3 generation. Those historical terms do not establish a current sale path in August 2026. Hanwha Q CELLS GmbH's German-language limited warranty for crystalline modules, issued 1 March 2025 (Rev02), names Q.TRON BLK S-G3R.12+/BFG in section 1.a. It sets a 25-year product warranty (section 2.a) and a performance warranty to the 30th anniversary (section 2.b) for modules distributed and installed in the European Union, with listed territorial exclusions, and in Norway, Switzerland and Turkey. Its worked example in section 2.b gives 88.6 % of the datasheet minimum output power at the end of the term, while the Rev01 datasheet states at least 88.93 % of nominal power up to 30 years. The copy read is hosted by a distributor, not by Qcells.

    The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.

    DE market evidenceDE market evidence+2 in JSON record
  2. Record updated

    DE Evidence sources

    Before
    https://www.q-cells.de/1/hardware/solarmodule; https://www.q-cells.de/1/hardware/solarmodule/qtron-g3; https://www.q-cells.de/presseportal/25-jahre-qcells
    After
    https://seasolargroup.com/wp-content/uploads/2026/02/Qcells_HQCTHA_Garantien_Solarmodule_Q.TRON-G3R_Serie_2025-03_Rev02_DE.pdf; https://www.q-cells.de/1/hardware/solarmodule; https://www.q-cells.de/1/hardware/solarmodule/qtron-g3; https://www.q-cells.de/presseportal/25-jahre-qcells
    DE market evidenceDE market evidence+2 in JSON record
  3. Record updated

    US Support Note

    Current text
    No G3R generation module appears anywhere on the California Energy Commission PV Module List as retrieved on 7 October 2026, which carries 22,357 records, including 746 listed under Qcells North America and 602 under Hanwha Qcells (Qidong) Co. Ltd. Qcells does not name the S-G3R series in the current range on its United States solar panel page, which carries the Q.TRON BLK M-G2+, Q.TRON BLK M-G2+/AC, Q.TRON XL G2/BFG and Q.PEAK DUO families. The exact datasheet this record is scored from is the European edition, Qcells_Data_sheet_Q.TRON_BLK_S-G3R.12+-BFG_435-445_2024-05_Rev01_EN. This is a European generation of the Q.TRON platform, so the record is retained for global comparison rather than as a United States purchase option. A US buyer shown this model code should confirm the exact part offered locally before treating a quote as this record.

    The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.

    Primary datasheetUS market evidence+1 in JSON record
6 changes to this record · 2 products changed in this update
  1. Evidence added

    NOCT (C): Evidence sources

    Before
    Not previously recorded
    After
    https://assets.publishing.service.gov.uk/media/67d7f69f9dc953ac3bfe92da/Qcells_Data_sheet_Q.TRON_BLK_S-G3R.12+-BFG_435-445_2024-05_Rev01_EN_checked.pdf
    Primary datasheet
  2. Record updated

    Efficiency & Yield pillar score

    Before
    60
    After
    60.3
    Primary datasheet
  3. Record updated

    Global score

    Before
    69
    After
    69.1
    Primary datasheet
  4. Record updated

    Source revision

    Current text
    Q.TRON BLK S-G3R.12+/BFG exact Rev01 sheet rechecked 2026-08-23; LeTID and PID scope linked and unsupported Advanced MBB scoring detail withheld. AU, US and DE remain unavailable for the exact record. India existing-catalogue panel ALMM review 2026-09-02: IN overlays recorded against List-I revision 03.08.2026; scores unchanged. NMOT 45 +/- 2 C joined from the Rev01 datasheet on 2026-09-20.

    The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.

    Primary datasheet
  5. Evidence added

    NOCT (C)

    Before
    Not previously recorded
    After
    45
    Primary datasheet
  6. Evidence added

    NOCT (C): Evidence status

    Before
    Not previously recorded
    After
    sourced
    Primary datasheet
5 changes to this record · 28 products changed in this update
  1. Evidence added

    IN Evidence sources

    Before
    Not previously recorded
    After
    https://cdnbbsr.s3waas.gov.in/s3716e1b8c6cd17b771da77391355749f3/uploads/2026/08/202608031426164762.pdf; https://mnre.gov.in/en/approved-list-of-models-and-manufacturers-almm/
    IN market evidenceIN market evidence
  2. Record updated

    Source revision

    Before
    Q.TRON BLK S-G3R.12+/BFG exact Rev01 sheet rechecked 2026-08-23; LeTID and PID scope linked and unsupported Advanced MBB scoring detail withheld. AU, US and DE remain unavailable for the exact record.
    After
    Q.TRON BLK S-G3R.12+/BFG exact Rev01 sheet rechecked 2026-08-23; LeTID and PID scope linked and unsupported Advanced MBB scoring detail withheld. AU, US and DE remain unavailable for the exact record. India existing-catalogue panel ALMM review 2026-09-02: IN overlays recorded against List-I revision 03.08.2026; scores unchanged.
    Primary datasheet
  3. Evidence added

    IN Support Note

    Before
    Not previously recorded
    After
    The exact scored model Q.TRON BLK S-G3R.12+/BFG 445 is not named on ALMM List-I revision 03.08.2026. ALMM is a domestic-content and procurement instrument; absence is not a quality finding and does not change the global score. A manufacturer catalogue is not a substitute for List-I. Existing AU, US, DE or EU warranty terms are not transferred.
    IN market evidenceIN market evidence
  4. Evidence added

    IN Certifications

    Before
    Not previously recorded
    After
    The exact scored model Q.TRON BLK S-G3R.12+/BFG 445 is not named on ALMM List-I revision 03.08.2026. Cited source_version in-almm-module-2026-08-03-ffdfc4d1f767.
    IN market evidenceIN market evidence
  5. Evidence added

    IN Status

    Before
    Not previously recorded
    After
    unavailable
    IN market evidenceIN market evidence
2 changes to this record · 109 products changed in this update
  1. Record updated

    Global score

    Before
    69.2
    After
    69
    Primary datasheet
  2. Record updated

    Efficiency & Yield pillar score

    Before
    60.7
    After
    60
    Primary datasheet
1 change to this record · 118 products changed in this update
  1. Record updated

    Independent energy yield: Evidence sources

    Before
    https://www.kiwa.com/en/insights/stories/inside-kiwa-pvels-2025-pv-module-reliability-scorecard/
    After
    https://scorecard.pvel.com/methodology/; https://scorecard.pvel.com/wp-content/uploads/2022-PVEL-PV-Module-Reliability-Scorecard-Summary.pdf
    Independent energy yieldIndependent energy yield+1 in JSON record
8 changes to this record · 34 products changed in this update
  1. Evidence removed

    Contact: Evidence sources

    Before
    https://assets.publishing.service.gov.uk/media/67d7f69f9dc953ac3bfe92da/Qcells_Data_sheet_Q.TRON_BLK_S-G3R.12+-BFG_435-445_2024-05_Rev01_EN_checked.pdf
    After
    No longer recorded
    Primary datasheet
  2. Evidence removed

    Contact: Evidence status

    Before
    sourced
    After
    No longer recorded
    Primary datasheet
  3. Record updated

    Global score

    Before
    71.4
    After
    69.2
    Primary datasheet
  4. Record updated

    Architecture & Design pillar score

    Before
    84.2
    After
    72.4
    Primary datasheet
  5. Record updated

    PID (IEC TS 62804): Evidence sources

    Before
    https://assets.publishing.service.gov.uk/media/67d7f69f9dc953ac3bfe92da/Qcells_Data_sheet_Q.TRON_BLK_S-G3R.12+-BFG_435-445_2024-05_Rev01_EN_checked.pdf
    After
    https://assets.publishing.service.gov.uk/media/67d7f69f9dc953ac3bfe92da/Qcells_Data_sheet_Q.TRON_BLK_S-G3R.12%2B-BFG_435-445_2024-05_Rev01_EN_checked.pdf; https://assets.publishing.service.gov.uk/media/67d7f69f9dc953ac3bfe92da/Qcells_Data_sheet_Q.TRON_BLK_S-G3R.12+-BFG_435-445_2024-05_Rev01_EN_checked.pdf
    Primary datasheetPID (IEC TS 62804)
  6. Evidence removed

    Contact

    Before
    Advanced MBB
    After
    No longer recorded
    Primary datasheet
  7. Record updated

    LeTID resistance (IEC TS 63342): Evidence sources

    Before
    After
    https://assets.publishing.service.gov.uk/media/67d7f69f9dc953ac3bfe92da/Qcells_Data_sheet_Q.TRON_BLK_S-G3R.12%2B-BFG_435-445_2024-05_Rev01_EN_checked.pdf; https://assets.publishing.service.gov.uk/media/67d7f69f9dc953ac3bfe92da/Qcells_Data_sheet_Q.TRON_BLK_S-G3R.12+-BFG_435-445_2024-05_Rev01_EN_checked.pdf
    Primary datasheetPID (IEC TS 62804)
  8. Record updated

    Source revision

    Before
    LeTID re-verified 2026-08-19 for rubric v2.12.0: scored under the returned criterion on the evidence recorded in its provenance. Re-verification 2026-08-19: Verified reliability recorded as "Brand or series independently tested; exact model not covered" under panel rubric v2.13.0, which added a band for brand or series evidence where the exact model is not covered by the third-party record. Re-verification 2026-08-20: Independent energy yield recorded as brand-or-series under panel rubric v2.14.0, which applied to this criterion the same exact-model rule v2.13.0 applied to Verified reliability.
    After
    Q.TRON BLK S-G3R.12+/BFG exact Rev01 sheet rechecked 2026-08-23; LeTID and PID scope linked and unsupported Advanced MBB scoring detail withheld. AU, US and DE remain unavailable for the exact record.
    Primary datasheet
5 changes to this record · 65 products changed in this update
  1. Record updated

    Source revision

    Current text
    LeTID re-verified 2026-08-19 for rubric v2.12.0: scored under the returned criterion on the evidence recorded in its provenance. Re-verification 2026-08-19: Verified reliability recorded as "Brand or series independently tested; exact model not covered" under panel rubric v2.13.0, which added a band for brand or series evidence where the exact model is not covered by the third-party record. Re-verification 2026-08-20: Independent energy yield recorded as brand-or-series under panel rubric v2.14.0, which applied to this criterion the same exact-model rule v2.13.0 applied to Verified reliability.

    The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.

    Primary datasheet
  2. Record updated

    Durability (verified) pillar score

    Before
    56.2
    After
    55.4
    Primary datasheet
  3. Record updated

    Independent energy yield

    Before
    Field/PAN energy-yield validated
    After
    Brand or series yield-tested; exact model not covered
    Independent energy yieldsuperseded
  4. Record updated

    Efficiency & Yield pillar score

    Before
    67.3
    After
    60.7
    Primary datasheet
  5. Record updated

    Global score

    Before
    72.9
    After
    71.4
    Primary datasheet
6 changes to this record · 31 products changed in this update
  1. Record updated

    Rating

    Before
    Superior
    After
    Very good
    Primary datasheet
  2. Record updated

    Global score

    Before
    76.4
    After
    72.9
    Primary datasheet
  3. Record updated

    Source revision

    Before
    LeTID re-verified 2026-08-19 for rubric v2.12.0: scored under the returned criterion on the evidence recorded in its provenance.
    After
    LeTID re-verified 2026-08-19 for rubric v2.12.0: scored under the returned criterion on the evidence recorded in its provenance. Re-verification 2026-08-19: Verified reliability recorded as "Brand or series independently tested; exact model not covered" under panel rubric v2.13.0, which added a band for brand or series evidence where the exact model is not covered by the third-party record.
    Primary datasheet
  4. Record updated

    Name Rating

    Before
    Superior
    After
    Very Good
    Primary datasheet
  5. Record updated

    Durability (verified) pillar score

    Before
    71.2
    After
    56.2
    Primary datasheet
  6. Record updated

    Verified reliability

    Before
    Top Performer (multi-year)
    After
    Brand or series independently tested; exact model not covered
    Verified reliabilityVerified reliability
6 changes to this record · 23 products changed in this update
  1. Record updated

    Durability (verified) pillar score

    Before
    72.2
    After
    71.2
    Primary datasheet
  2. Evidence added

    LeTID resistance (IEC TS 63342): Evidence sources

    Before
    Not previously recorded
    After
    No direct source binding recorded
  3. Record updated

    Global score

    Before
    76.6
    After
    76.4
    Primary datasheet
  4. Evidence added

    LeTID resistance (IEC TS 63342)

    Before
    Not previously recorded
    After
    LeTID resistance claimed for this product, no test cited
    No direct source binding recorded
  5. Evidence added

    LeTID resistance (IEC TS 63342): Evidence status

    Before
    Not previously recorded
    After
    sourced
    No direct source binding recorded
  6. Evidence added

    Source revision

    Before
    Not previously recorded
    After
    LeTID re-verified 2026-08-19 for rubric v2.12.0: scored under the returned criterion on the evidence recorded in its provenance.
    Primary datasheet
9 changes to this record · 106 products changed in this update
  1. Evidence removed

    Damp heat extended (2000h): Evidence status

    Before
    sourced
    After
    No longer recorded
    Primary datasheet
  2. Record updated

    Architecture & Design pillar score

    Before
    80.7
    After
    84.2
    Primary datasheet
  3. Evidence removed

    Awards: Evidence status

    Before
    sourced
    After
    No longer recorded
    Primary datasheet
  4. Evidence removed

    Damp heat extended (2000h)

    Before
    1000h IEC 61215 standard
    After
    No longer recorded
    Primary datasheet
  5. Record updated

    Global score

    Before
    76
    After
    76.6
    Primary datasheet
  6. Evidence removed

    Awards: Evidence sources

    Before
    https://assets.publishing.service.gov.uk/media/67d7f69f9dc953ac3bfe92da/Qcells_Data_sheet_Q.TRON_BLK_S-G3R.12+-BFG_435-445_2024-05_Rev01_EN_checked.pdf
    After
    No longer recorded
    Primary datasheet
  7. Record updated

    Durability (verified) pillar score

    Before
    72.5
    After
    72.2
    Primary datasheet
  8. Evidence removed

    Awards

    Before
    Major International Brand Award
    After
    No longer recorded
    Primary datasheet
  9. Evidence removed

    Damp heat extended (2000h): Evidence sources

    Before
    https://assets.publishing.service.gov.uk/media/67d7f69f9dc953ac3bfe92da/Qcells_Data_sheet_Q.TRON_BLK_S-G3R.12+-BFG_435-445_2024-05_Rev01_EN_checked.pdf
    After
    No longer recorded
    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.

  1. US market evidence checked
  2. Core scorecard evidence checked
  3. IN market evidence checked
  4. DE market evidence checked
  5. AU market evidence checked
  6. Series benchmark evidence checked
  7. Plain-language warranty summary checked

Evidence record (JSON)

Scored by Solar Analytica Research

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