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Global Tier-1

TOPBiHiKu6 66TB

635–670 W · 66-cell · N-type TOPCon · Bifacial · Dual-glass

Canadian SolarReleased 2022

72/ 100

Very good

Global

24.8% Efficiency15+ Yrs Field-ProvenBifacialGlass-Glass

The verdict. In our Global Tier-1 class, Canadian Solar TOPBiHiKu6 66TB leads on sustainability.

7thof 66 in Global Tier-1Top 10%class average 63.1
Compare this panelAsk Watt →

The assessment

How it scores, by category

Architecture & Design72
Efficiency & Yield69
Durability (verified)65
Performance & Degradation73
Guarantee & Backbone70
Sustainability100

Market position

7thof 66 in Global Tier-1Top 10%
457274

Our reading

TOPBiHiKu6 66TB scores 72, placing 7 of 66 in the Global Tier-1 class and within 2.8 points of the class leader. Its strongest scoring dimension is sustainability (100), running 40.4 points above the class average on this dimension. Underlying specifications include a module efficiency of 24.8%, N-type TOPCon cell technology, 12-year product warranty backed by a 30-year performance term.

The data

Power
670W
Efficiency
24.8%
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
635–670 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

670 Wrated586W 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 (670 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

603W545W

Year 1 to year 25, at 30°C and 1000 W/m². Rated 670 W at STC.

How this is modelled

Compounds this panel’s own published first-year (1%) and annual (0.4%/yr) degradation figures against its 670 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 (41°C) and temperature coefficient (-0.29%/°C), giving an estimated cell temperature of 56°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
Watts603 W593 W581 W569 W557 W545 W
% of rated90.0%88.6%86.8%84.9%83.1%81.3%
Before you buy
Local positionUse a market view to check local availability, approvals and warranty scope.
Ask the installerWill the quote name the exact TOPBiHiKu6 66TB 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 Australian rating in this exact series. Scored model: CS6.2-66TB-670 · checked 2026-08-06. Evidence.

Sources & references · checked 2026-09-01

Strong evidence coverage

28 of 28 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. TOPBiHiKu6 CS6.2-66TB exact Australian V1.4C3 sheet rechecked 2026-08-23; fire classification linked and unsupported MBB detail withheld while AU status remains available. First-market US and DE overlay review 2026-09-01: official regional catalogues recorded; Australian overlays and scores unchanged.

Change ledger

Product record history

9 changes to this record · 152 products changed in this update
  1. Evidence added

    DE Evidence sources

    Before
    Not previously recorded
    After
    https://static.csisolar.com/wp-content/uploads/2019/12/20160520/CSI_Module_Type_and_Power_Class_Index_EN.pdf; https://www.csisolar.com/de/
    DE market evidenceUS market evidence
  2. Evidence added

    DE Support Note

    Before
    Not previously recorded
    After
    csisolar.com/de/ returns the same global homepage as csisolar.com. The module index names CS6.2-66TB as a global type, not a German sale path. CS6.3-66TB is a different type and is not transferred.
    DE market evidenceUS market evidence
  3. Record updated

    Source revision

    Before
    TOPBiHiKu6 CS6.2-66TB exact Australian V1.4C3 sheet rechecked 2026-08-23; fire classification linked and unsupported MBB detail withheld while AU status remains available.
    After
    TOPBiHiKu6 CS6.2-66TB exact Australian V1.4C3 sheet rechecked 2026-08-23; fire classification linked and unsupported MBB detail withheld while AU status remains available. First-market US and DE overlay review 2026-09-01: official regional catalogues recorded; Australian overlays and scores unchanged.
    Primary datasheet
  4. Evidence added

    DE Status

    Before
    Not previously recorded
    After
    unavailable
    DE market evidenceUS market evidence
  5. Evidence added

    DE Certifications

    Before
    Not previously recorded
    After
    DE market evidenceUS market evidence
  6. Evidence added

    US Support Note

    Before
    Not previously recorded
    After
    csisolar.com/us/ returns the same global homepage as csisolar.com. The module index names CS6.2-66TB / TOPBiHiKu6 as a global type, not a United States sale path. CS6.3-66TB is a different type and is not transferred.
    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://static.csisolar.com/wp-content/uploads/2019/12/20160520/CSI_Module_Type_and_Power_Class_Index_EN.pdf; https://www.csisolar.com/us/
    US market evidenceUS market evidence
  9. Evidence added

    US Status

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

    Efficiency & Yield pillar score

    Before
    72.4
    After
    69
    Primary datasheet
  2. Record updated

    Global score

    Before
    72.2
    After
    71.5
    Primary datasheet
1 change to this record · 118 products changed in this update
  1. Record updated

    Independent energy yield: Evidence sources

    Before
    https://scorecard.pvel.com/top-performers/
    After
    https://scorecard.pvel.com/methodology/; https://scorecard.pvel.com/top-performers/
    Independent energy yieldIndependent energy yield
7 changes to this record · 34 products changed in this update
  1. Record updated

    Global score

    Before
    74
    After
    72.2
    Primary datasheet
  2. Record updated

    Source revision

    Before
    Canadian Solar CEC AU CS6.2-66TB V1.4C3 and TopBiHiKu AU warranty V1.9 reviewed 2026-08-06 Re-verification 2026-08-18: PID and ammonia resistance recorded from the Clean Energy Council enhanced listing for exact model CS6.2-66TB-670, matched on exact model identity rather than brand or series. Salt mist is also enhanced-listed for this model but the rubric bands salt mist by severity and the regulator publishes none, so it remains unset. Re-verification 2026-08-18: salt mist recorded as certified without published severity from the Clean Energy Council enhanced listing for exact model CS6.2-66TB-670, under panel rubric v2.11.0 which added that band. 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
    TOPBiHiKu6 CS6.2-66TB exact Australian V1.4C3 sheet rechecked 2026-08-23; fire classification linked and unsupported MBB detail withheld while AU status remains available.
    Primary datasheet
  3. Evidence removed

    Contact: Evidence sources

    Before
    After
    No longer recorded
    No direct source binding recorded
  4. Evidence removed

    Contact

    Before
    MBB Wire front contact
    After
    No longer recorded
    No direct source binding recorded
  5. Evidence removed

    Contact: Evidence status

    Before
    sourced
    After
    No longer recorded
    No direct source binding recorded
  6. Record updated

    Fire classification (IEC 61730): Evidence sources

    Before
    After
    https://static.csisolar.com/wp-content/uploads/sites/2/2025/08/08133238/CEC-AU-TOPBiHiKu6_CS6.2-66TB_v1.4C3_AU.pdf
    Primary datasheet
  7. Record updated

    Architecture & Design pillar score

    Before
    81.8
    After
    72.4
    Primary datasheet
7 changes to this record · 65 products changed in this update
  1. Record updated

    Durability (verified) pillar score

    Before
    63.9
    After
    64.7
    Primary datasheet
  2. Record updated

    Source revision

    Current text
    Canadian Solar CEC AU CS6.2-66TB V1.4C3 and TopBiHiKu AU warranty V1.9 reviewed 2026-08-06 Re-verification 2026-08-18: PID and ammonia resistance recorded from the Clean Energy Council enhanced listing for exact model CS6.2-66TB-670, matched on exact model identity rather than brand or series. Salt mist is also enhanced-listed for this model but the rubric bands salt mist by severity and the regulator publishes none, so it remains unset. Re-verification 2026-08-18: salt mist recorded as certified without published severity from the Clean Energy Council enhanced listing for exact model CS6.2-66TB-670, under panel rubric v2.11.0 which added that band. 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
  3. Record updated

    Efficiency & Yield pillar score

    Before
    79.1
    After
    72.4
    Primary datasheet
  4. Record updated

    Global score

    Before
    75.1
    After
    74
    Primary datasheet
  5. Record updated

    Independent energy yield

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

    Rating

    Before
    Superior
    After
    Very good
    Primary datasheet
  7. Record updated

    Name Rating

    Before
    Superior
    After
    Very Good
    Primary datasheet
4 changes to this record · 31 products changed in this update
  1. Record updated

    Source revision

    Current text
    Canadian Solar CEC AU CS6.2-66TB V1.4C3 and TopBiHiKu AU warranty V1.9 reviewed 2026-08-06 Re-verification 2026-08-18: PID and ammonia resistance recorded from the Clean Energy Council enhanced listing for exact model CS6.2-66TB-670, matched on exact model identity rather than brand or series. Salt mist is also enhanced-listed for this model but the rubric bands salt mist by severity and the regulator publishes none, so it remains unset. Re-verification 2026-08-18: salt mist recorded as certified without published severity from the Clean Energy Council enhanced listing for exact model CS6.2-66TB-670, under panel rubric v2.11.0 which added that band. 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.

    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

    Global score

    Before
    78.6
    After
    75.1
    Primary datasheet
  3. Record updated

    Verified reliability

    Before
    Top Performer (multi-year)
    After
    Brand or series independently tested; exact model not covered
    Verified reliability
  4. Record updated

    Durability (verified) pillar score

    Before
    79
    After
    63.9
    Primary datasheet
5 changes to this record · 23 products changed in this update
  1. Record updated

    Source revision

    Current text
    Canadian Solar CEC AU CS6.2-66TB V1.4C3 and TopBiHiKu AU warranty V1.9 reviewed 2026-08-06 Re-verification 2026-08-18: PID and ammonia resistance recorded from the Clean Energy Council enhanced listing for exact model CS6.2-66TB-670, matched on exact model identity rather than brand or series. Salt mist is also enhanced-listed for this model but the rubric bands salt mist by severity and the regulator publishes none, so it remains unset. Re-verification 2026-08-18: salt mist recorded as certified without published severity from the Clean Energy Council enhanced listing for exact model CS6.2-66TB-670, under panel rubric v2.11.0 which added that band. LeTID re-verified 2026-08-19 for rubric v2.12.0: scored under the returned criterion on the evidence recorded in its provenance.

    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. Evidence added

    LeTID resistance (IEC TS 63342): Evidence sources

    Before
    Not previously recorded
    After
    https://cleanenergycouncil.org.au/api/PvModule/get
    PID (IEC TS 62804)
  3. Evidence added

    LeTID resistance (IEC TS 63342)

    Before
    Not previously recorded
    After
    Independently tested / certified, figure not published
    PID (IEC TS 62804)
  4. Record updated

    Durability (verified) pillar score

    Before
    79.2
    After
    79
    Primary datasheet
  5. Evidence added

    LeTID resistance (IEC TS 63342): Evidence status

    Before
    Not previously recorded
    After
    sourced
    PID (IEC TS 62804)
2 changes to this record · 15 products changed in this update
  1. Record updated

    Ammonia resistance (IEC 62716): Evidence sources

    Before
    After
    https://cleanenergycouncil.org.au/api/PvModule/get; https://cleanenergycouncil.org.au/industry-programs/products-program
    PID (IEC TS 62804)PID (IEC TS 62804)
  2. Record updated

    Ammonia resistance (IEC 62716): Evidence status

    Before
    derived
    After
    sourced
    PID (IEC TS 62804)PID (IEC TS 62804)
5 changes to this record · 19 products changed in this update
  1. Record updated

    Salt mist (IEC 61701)

    Before
    Not Listed
    After
    Certified (IEC 61701), severity not published
    PID (IEC TS 62804)
  2. Record updated

    Source revision

    Current text
    Canadian Solar CEC AU CS6.2-66TB V1.4C3 and TopBiHiKu AU warranty V1.9 reviewed 2026-08-06 Re-verification 2026-08-18: PID and ammonia resistance recorded from the Clean Energy Council enhanced listing for exact model CS6.2-66TB-670, matched on exact model identity rather than brand or series. Salt mist is also enhanced-listed for this model but the rubric bands salt mist by severity and the regulator publishes none, so it remains unset. Re-verification 2026-08-18: salt mist recorded as certified without published severity from the Clean Energy Council enhanced listing for exact model CS6.2-66TB-670, under panel rubric v2.11.0 which added that band.

    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
  3. Record updated

    Global score

    Before
    77.9
    After
    78.6
    Primary datasheet
  4. Record updated

    Durability (verified) pillar score

    Before
    75.9
    After
    79.2
    Primary datasheet
  5. Record updated

    Salt mist (IEC 61701): Evidence sources

    Before
    After
    https://cleanenergycouncil.org.au/industry/products/modules
    PID (IEC TS 62804)
8 changes to this record · 106 products changed in this update
  1. Evidence removed

    Damp heat extended (2000h): Evidence status

    Before
    derived
    After
    No longer recorded
    No direct source binding recorded
  2. Evidence removed

    Awards: Evidence status

    Before
    reviewed_absence
    After
    No longer recorded
    NOCT (C)
  3. Record updated

    Architecture & Design pillar score

    Before
    76.7
    After
    81.8
    Primary datasheet
  4. Evidence removed

    Damp heat extended (2000h): Evidence sources

    Before
    After
    No longer recorded
    No direct source binding recorded
  5. Record updated

    Global score

    Before
    76.9
    After
    77.9
    Primary datasheet
  6. Evidence removed

    Awards

    Before
    Not Listed
    After
    No longer recorded
    NOCT (C)
  7. Evidence removed

    Awards: Evidence sources

    Before
    https://static.csisolar.com/wp-content/uploads/2022/09/04143133/CS-Datasheet-TOPBiHiKu6_CS6.2-66TB_v1.2_EN.pdf
    After
    No longer recorded
    NOCT (C)
  8. Evidence removed

    Damp heat extended (2000h)

    Before
    1000h IEC 61215 standard
    After
    No longer recorded
    No direct source binding recorded
6 changes to this record · 17 products changed in this update
  1. Record updated

    PID (IEC TS 62804): Evidence sources

    Before
    After
    https://cleanenergycouncil.org.au/industry/products/modules
    PID (IEC TS 62804)
  2. Record updated

    PID (IEC TS 62804)

    Before
    Claimed, no test cited
    After
    Independently tested / certified
    PID (IEC TS 62804)
  3. Record updated

    Source revision

    Before
    Canadian Solar CEC AU CS6.2-66TB V1.4C3 and TopBiHiKu AU warranty V1.9 reviewed 2026-08-06
    After
    Canadian Solar CEC AU CS6.2-66TB V1.4C3 and TopBiHiKu AU warranty V1.9 reviewed 2026-08-06 Re-verification 2026-08-18: PID and ammonia resistance recorded from the Clean Energy Council enhanced listing for exact model CS6.2-66TB-670, matched on exact model identity rather than brand or series. Salt mist is also enhanced-listed for this model but the rubric bands salt mist by severity and the regulator publishes none, so it remains unset.
    Primary datasheet
  4. Record updated

    Ammonia resistance (IEC 62716)

    Before
    Not listed
    After
    IEC 62716 certified
    No direct source binding recorded
  5. Record updated

    Durability (verified) pillar score

    Before
    71.5
    After
    75.9
    Primary datasheet
  6. Record updated

    Global score

    Before
    75.9
    After
    76.9
    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. Core scorecard evidence checked
  2. US market evidence checked
  3. DE market evidence checked
  4. AU market evidence checked
  5. Series benchmark evidence checked
  6. Plain-language warranty summary checked

Evidence record (JSON)

Scored by Solar Analytica Research

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