back to panels

Global Tier-1

NT10/72GDF

600–605 W · 72-cell · N-type TOPCon · Bifacial · Dual-glass

GCL

59/ 100

Good

Global

BifacialGlass-Glass

The verdict. In our Global Tier-1 class, GCL NT10/72GDF leads on performance & degradation.

54thof 66 in Global Tier-1Bottom quarterclass average 63.6
Compare this panel →Ask Watt →

The assessment

How it scores, by category

Architecture & Design68
Efficiency & Yield58
Durability (verified)50
Performance & Degradation73
Guarantee & Backbone46
Sustainability46

Market position

54thof 66 in Global Tier-1Bottom quarter
455976

Our reading

NT10/72GDF scores 59, placing 54 of 66 in the Global Tier-1 class against a class average of 63.6. Its strongest scoring dimension is performance & degradation (73), above the class average of 72. Sustainability scores 46, the lowest pillar for this product. The class average on sustainability is 59. Underlying specifications include a module efficiency of 23.42%, N-type TOPCon cell technology, 12-year product warranty backed by a 30-year performance term.

The data

Power
605W
Efficiency
23.42%
Cell
N-type TOPCon
Temp coeff
-0.29%/°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
600–605 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

605 Wrated529W at yr 30
80859095100Guaranteed floor 87.4%Product 12yr87.4%0yr5yr10yr15yr20yr25yr30yr
Projected outputGuaranteed floor: 87.4% at yr 30Product warranty ends yr 12

Wattage figure based on the sourced rated power (605 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

599W541W

Year 1 to year 25. Rated 605 W at STC.

How this is modelled

Modelled from this panel’s own published first-year (1%) and annual (0.4%/yr) degradation figures, compounded against its 605 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.

Year1510152025
Watts599 W589 W577 W565 W553 W541 W
% of rated99.0%97.4%95.4%93.4%91.4%89.4%
Before you buy
Local positionUse a market view to check local availability, approvals and warranty scope.
Ask the installerWill the quote name the exact NT10/72GDF 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 uses the highest exact current power bin in the retained market source. Scored model: GCL-NT10/72GDF-605 · checked 2026-08-06. Evidence.

Sources & references · checked 2026-09-04

Strong evidence coverage

16 of 16 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

0 of 2 questions with rows in the rings reach beyond manufacturer claim; none is measured by review.solar.123456
  1. OutputManufacturer claim5 rows in the rings4 warranty terms beside the rings
  2. EnduranceManufacturer claim2 rows in the rings
  3. SafetyNot assessed for panels
  4. BackingWarranty terms: the maker's commitment3 warranty terms beside the rings
  5. FitDesign facts from the maker's own material2 design facts beside the rings
  6. 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. Warranty terms and design facts that rest on the maker's own word are counted beside the rings; a reviewed absence, or one that reaches beyond the maker's claim, stays in them. How the evidence puzzle works

Record correction. GCL Australian NT10/72GDF 600-605 datasheet and AU warranty Rev. 2024-EN-AU-CEC-VER.1.0 Corrected 2026-08-18: Cell technology tier set to TOPCon tier. The exact-model datasheet already established N-type TOPCon and the scoring field was simply empty, so the record was scoring its own missing-data floor. Multi-market warranty-terms recovery 2026-08-29: structured AU, US or IN overlay terms recovered or held from the exact governing instrument. First-market US and DE overlay review 2026-09-01: official regional catalogues recorded; Australian overlays and scores unchanged. US overlay recheck 2026-09-04: official United States surfaces still inaccessible or missing; held not_reviewed overlays restamped; existing non-US overlays and scores unchanged.

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

7 changes to this record · 11 products changed in this update
  1. Record updated

    AU Evidence sources

    Before
    https://en.gclsi.com/modules?product_catalog=16; https://es.gclsi.com/uploads/Limited%20Warranty%20-%20AUS.pdf; https://gclsien.cdn.shwebspace.com/uploads/Aus-NT1072GDF600-605.pdf
    After
    https://cer.gov.au/document/cec-approved-pv-modules-0; https://en.gclsi.com/download/; https://es.gclsi.com/uploads/Limited%20Warranty%20-%20AUS.pdf; https://gclsien.cdn.shwebspace.com/uploads/Aus-NT1072GDF600-605.pdf; https://gclsien.cdn.shwebspace.com/uploads/Aus-Warrenty.pdf; https://gclsien.cdn.shwebspace.com/uploads/Warranty%202024%20EN%20AU%20CEC%20NS%20VER%201.pdf
    AU market evidenceGuaranteed end-of-warranty output (%)+5 in JSON record
  2. Record updated

    DE Evidence sources

    Before
    https://de.gclsi.com/; https://en.gclsi.com/modules?product_catalog=16
    After
    https://de.gclsi.com/; https://en.gclsi.com/contact_us?global; https://en.gclsi.com/modules?product_catalog=16; https://www.gclsi.com/
    US market evidenceUS market evidence+2 in JSON record
  3. Record updated

    US Support Note

    Before
    us.gclsi.com does not resolve. No official United States catalogue was retrieved. The global EN NT10/72GDF page is not a United States sale path. Held is not unavailable.
    After
    us.gclsi.com does not resolve (a DNS lookup on 7 October 2026 found no such host). No official United States catalogue was retrieved. The maker site language selector lists English, Spanish, Portuguese, English (Australia), Japanese and Chinese sites, and the Global Layout section of the maker's contact page lists regional representatives for Europe, Latin America, Asia-Pacific/MEA and Japan. The global EN NT10/72GDF datasheet is not a United States sale path. Held is not unavailable.
    US market evidenceUS market evidence+2 in JSON record
  4. Record updated

    DE Support Note

    Before
    de.gclsi.com fails TLS because the certificate is issued for en.gclsi.com. No German catalogue was retrieved. The global EN datasheet is not a German sale path. Held is not unavailable.
    After
    de.gclsi.com fails TLS because the certificate is issued for en.gclsi.com. With certificate verification disabled for diagnosis only, the host returned the same home and modules pages as en.gclsi.com on 7 October 2026, so no separate German catalogue was retrieved. The Global Layout section of the maker's contact page lists a Europe regional representative and names no German office or distributor. The global EN datasheet and the global warranty Rev. 2024-EN-VER 2.0 name the NT10/72GDF family, but neither sets German market terms; the global warranty mentions Germany only as the location of test institutes for technical disputes. Held is not unavailable.
    US market evidenceUS market evidence+2 in JSON record
  5. Record updated

    AU Warranty scope

    Before
    The Australian warranty expressly names GCL-NT10/72GDFxxx and provides 12-year product and 30-year linear performance cover.
    After
    The Australian warranty expressly names GCL-NT10/72GDFxxx and provides 12-year product and 30-year linear performance cover. The maker publishes it in three Australian revisions (2024-EN-AU-CEC-VER.1.0, 2024-EN-AU-CEC-NS-VER.1.0 and 2025-EN-AU-CEC-NS-VER.1.0); each names GCL-NT10/72GDFxxx and states the same 12-year product and 30-year performance terms. The maker download centre lists the 2025 revision as Limited Warranty - AUS. Each revision states that it continues to be valid for modules dispatched from GCLSI's factories and installed in Australia until an updated version is officially issued.
    AU market evidenceGuaranteed end-of-warranty output (%)+5 in JSON record
  6. Record updated

    AU Certifications

    Before
    The exact Australian sheet publishes IEC 61215 and IEC 61730 certification. Current regulator-list inclusion was not separately established in this sprint.
    After
    The exact Australian sheet publishes IEC 61215 and IEC 61730 certification. The CEC approved PV module list published by the Clean Energy Regulator, read from the export last modified 24 September 2026, lists GCL-NT10/72GDF600 and GCL-NT10/72GDF605 (IEC 61215-2021) with approval on 22 October 2025, expiry on 22 October 2028 and fire tested recorded as Yes.
    AU market evidenceGuaranteed end-of-warranty output (%)+5 in JSON record
  7. Record updated

    US Evidence sources

    Before
    https://en.gclsi.com/modules?product_catalog=16; https://us.gclsi.com/
    After
    https://en.gclsi.com/contact_us?global; https://en.gclsi.com/modules?product_catalog=16; https://us.gclsi.com/; https://www.gclsi.com/
    US market evidenceUS market evidence+2 in JSON record
1 change to this record · 17 products changed in this update
  1. Record updated

    Source revision

    Current text
    GCL Australian NT10/72GDF 600-605 datasheet and AU warranty Rev. 2024-EN-AU-CEC-VER.1.0 Corrected 2026-08-18: Cell technology tier set to TOPCon tier. The exact-model datasheet already established N-type TOPCon and the scoring field was simply empty, so the record was scoring its own missing-data floor. Multi-market warranty-terms recovery 2026-08-29: structured AU, US or IN overlay terms recovered or held from the exact governing instrument. First-market US and DE overlay review 2026-09-01: official regional catalogues recorded; Australian overlays and scores unchanged. US overlay recheck 2026-09-04: official United States surfaces still inaccessible or missing; held not_reviewed overlays restamped; existing non-US 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 datasheet
9 changes to this record · 152 products changed in this update
  1. Evidence added

    DE Certifications

    Before
    Not previously recorded
    After
    US market evidenceDE market evidence
  2. Evidence added

    DE Support Note

    Before
    Not previously recorded
    After
    de.gclsi.com fails TLS because the certificate is issued for en.gclsi.com. No German catalogue was retrieved. The global EN datasheet is not a German sale path. Held is not unavailable.
    US market evidenceDE market evidence
  3. Evidence added

    DE Evidence sources

    Before
    Not previously recorded
    After
    https://de.gclsi.com/; https://en.gclsi.com/modules?product_catalog=16
    US market evidenceDE market evidence
  4. Record updated

    Source revision

    Current text
    GCL Australian NT10/72GDF 600-605 datasheet and AU warranty Rev. 2024-EN-AU-CEC-VER.1.0 Corrected 2026-08-18: Cell technology tier set to TOPCon tier. The exact-model datasheet already established N-type TOPCon and the scoring field was simply empty, so the record was scoring its own missing-data floor. Multi-market warranty-terms recovery 2026-08-29: structured AU, US or IN overlay terms recovered or held from the exact governing instrument. 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 datasheet
  5. Evidence added

    DE Status

    Before
    Not previously recorded
    After
    not_reviewed
    US market evidenceDE market evidence
  6. Evidence added

    US Status

    Before
    Not previously recorded
    After
    not_reviewed
    US market evidenceUS market evidence
  7. Evidence added

    US Certifications

    Before
    Not previously recorded
    After
    US market evidenceUS market evidence
  8. Evidence added

    US Evidence sources

    Before
    Not previously recorded
    After
    https://en.gclsi.com/modules?product_catalog=16; https://us.gclsi.com/
    US market evidenceUS market evidence
  9. Evidence added

    US Support Note

    Before
    Not previously recorded
    After
    us.gclsi.com does not resolve. No official United States catalogue was retrieved. The global EN NT10/72GDF page is not a United States sale path. Held is not unavailable.
    US market evidenceUS market evidence
2 changes to this record · 109 products changed in this update
  1. Record updated

    Global score

    Before
    59.2
    After
    58.6
    Primary datasheet
  2. Record updated

    Efficiency & Yield pillar score

    Before
    61.1
    After
    58.3
    Primary datasheet
2 changes to this record · 23 products changed in this update
  1. Record updated

    AU Warranty conditions

    Current text
    labour: On-site labour is not promised.; registration: No product-registration condition is stated. Claims require prompt written notice with serial numbers and a stamped or signed invoice from GCLSI or its authorised distributor.; remedy: GCLSI may repair or replace an eligible module.; removal reinstallation: Removal and reinstallation are not promised.; transferability: The warranty follows a module that remains at its original installation site.; transport: No unconditional buyer-facing transport promise is scored.

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

    Guaranteed end-of-warranty output (%)US market evidence+1 in JSON record
  2. Record updated

    Source revision

    Current text
    GCL Australian NT10/72GDF 600-605 datasheet and AU warranty Rev. 2024-EN-AU-CEC-VER.1.0 Corrected 2026-08-18: Cell technology tier set to TOPCon tier. The exact-model datasheet already established N-type TOPCon and the scoring field was simply empty, so the record was scoring its own missing-data floor. Multi-market warranty-terms recovery 2026-08-29: structured AU, US or IN overlay terms recovered or held from the exact governing instrument.

    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 changes to this record · 118 products changed in this update
  1. Evidence added

    Independent energy yield: Evidence status

    Before
    Not previously recorded
    After
    reviewed_absence
    Independent energy yieldIndependent energy yield+2 in JSON record
  2. Evidence added

    Independent energy yield

    Before
    Not previously recorded
    After
    No public independent yield result found in reviewed sources
    Independent energy yieldIndependent energy yield+2 in JSON record
  3. Record updated

    Efficiency & Yield pillar score

    Before
    66.9
    After
    61.1
    Primary datasheet
  4. Evidence added

    Independent energy yield: Evidence sources

    Before
    Not previously recorded
    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
    Independent energy yieldIndependent energy yield+2 in JSON record
  5. Record updated

    Global score

    Before
    60.3
    After
    59.2
    Primary datasheet
1 change to this record · 65 products changed in this update
  1. Record updated

    Durability (verified) pillar score

    Before
    49.5
    After
    49.6
    Primary datasheet
3 changes to this record · 106 products changed in this update
  1. Record updated

    Global score

    Before
    59.8
    After
    60.3
    Primary datasheet
  2. Record updated

    Architecture & Design pillar score

    Before
    65.5
    After
    68.5
    Primary datasheet
  3. Record updated

    Durability (verified) pillar score

    Before
    49.6
    After
    49.5
    Primary datasheet
6 changes to this record · 2 products changed in this update
  1. Record updated

    Source revision

    Before
    GCL Australian NT10/72GDF 600-605 datasheet and AU warranty Rev. 2024-EN-AU-CEC-VER.1.0
    After
    GCL Australian NT10/72GDF 600-605 datasheet and AU warranty Rev. 2024-EN-AU-CEC-VER.1.0 Corrected 2026-08-18: Cell technology tier set to TOPCon tier. The exact-model datasheet already established N-type TOPCon and the scoring field was simply empty, so the record was scoring its own missing-data floor.
    Primary datasheet
  2. Record updated

    Architecture & Design pillar score

    Before
    53.6
    After
    65.5
    Primary datasheet
  3. Record updated

    Global score

    Before
    57.5
    After
    59.8
    Primary datasheet
  4. Evidence added

    Cell technology tier: Evidence status

    Before
    Not previously recorded
    After
    sourced
    Cell technology tier
  5. Evidence added

    Cell technology tier: Evidence sources

    Before
    Not previously recorded
    After
    https://gclsien.cdn.shwebspace.com/uploads/Aus-NT1072GDF600-605.pdf
    Cell technology tier
  6. Evidence added

    Cell technology tier

    Before
    Not previously recorded
    After
    TOPCon tier
    Cell technology tier

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. Core scorecard evidence checked
  2. US market evidence checked
  3. DE market evidence checked
  4. AU market evidence checked
  5. Series benchmark evidence checked

Evidence record (JSON)

Scored by Solar Analytica Research

Stay across the benchmark.

New scorecards, score changes and market signals, published as they happen.