review.solar · Sourced values document
Max 54-cell
490–505 W · 54-cell · IBC back-contact · Dual-glass
SunPower
Premium Performance
Released 2026 · Evidence checked 2026-07-27 · Scored to Solar Analytica panel rubric v2.9.0
68/100
Very good
Overall
Score by category
Architecture & Design
88
Efficiency & Yield
64
Durability (verified)
47
Performance & Degradation
78
Guarantee & Backbone
79
Sustainability
47
Sourced specification values
Published power range490–505 W
Scored benchmark505 W
Cell architectureBack-contact (IBC/ABC): full rear contact
Module efficiency24.7%
Temp. coefficient Pmax-0.26 %/°C
First-year degradation1%
Annual degradation0.35 %/yr
Product warranty30 yr
Performance warranty30 yr
EncapsulationGlass-glass (framed)
Energy yield test resultNot independently yield-tested
Reliability testingNot independently tested
Carbon footprint / EPDNot published
Hail resistanceNot listed

Some values are estimated where independent verification was not available: see the full scorecard and review.solar/terms.

Page 2 · Audit sheet: complete sourced record (1 of 2)

Max 54-cell · every criterion scored by the live rubric (Solar Analytica panel rubric v2.9.0), with its recorded value, evidence status, and any linked source. Page 1 carries the buying-decision summary; this and the next page are the full record for verification and right of reply.

Architecture & Design
Cell architectureBack-contact (IBC/ABC): full rear contactdatasheetSource
Encapsulation & frame constructionGlass-glass (framed)datasheetSource
ContactRear ContactdatasheetSource
Fire classification (IEC 61730)CertifieddatasheetSource
AwardsNot Listednot foundSource
Efficiency & Yield
Module efficiency (%)24.7datasheetSource
Independent energy yieldNot independently yield-testednot foundSource
Temp coefficient Pmax (%/C)-0.26datasheetSource
Durability (verified)
Verified reliabilityNot independently testednot foundSource
Positive loading (MQT16, Pa)5400datasheetSource
Negative loading (MQT16, Pa)2400datasheetSource
PID (IEC TS 62804)Not addressednot foundSource
Salt mist (IEC 61701)Not ListeddatasheetSource
Hail resistanceNot listednot foundSource
Ammonia resistance (IEC 62716)Not listeddatasheetSource
Damp heat extended (2000h)1000h IEC 61215 standarddatasheetSource

review.solar · audit sheet · Solar Analytica panel rubric v2.9.0 · https://review.solar/cards/tcl-sunpower-max-hsm-be54-hd505-au

Page 3 · Audit sheet: complete sourced record (2 of 2)

Max 54-cell · continued from page 2 · Solar Analytica rubric Solar Analytica panel rubric v2.9.0.

Performance & Degradation
Guaranteed end-of-warranty output (%)88.85statedSource
First-year degradation (%)1.0datasheetSource
Annual degradation (%/yr)0.35datasheetSource
Performance guarantee period (yrs)30datasheetSource
Guarantee & Backbone
Guarantee period (yrs)30datasheetSource
Guarantee assuranceNot Listednot foundSource
Warranty transferabilityNot transferable / not disclosednot foundSource
Financial strength & warranty backingFinancially strong (profitable / strong parent)datasheetSource +1
Manufacturing track record15+ years, field-provendatasheetSource +1
Sustainability
Carbon footprint / EPDNot publishednot foundSource
End-of-life & recycling disclosureRecyclability claims published, no programdatasheetSource

review.solar · audit sheet · Solar Analytica panel rubric v2.9.0 · https://review.solar/cards/tcl-sunpower-max-hsm-be54-hd505-au