review.solar · Sourced values document
Performance 7
440–455 W · N-type TOPCon · Bifacial · Dual-glass
SunPower
Premium Performance
Released 2023 · Evidence checked 2026-08-06 · Scored to Solar Analytica panel rubric v2.14.0
74/100
Very good
Overall
Score by category
Architecture & Design
84
Efficiency & Yield
59
Durability (verified)
74
Performance & Degradation
77
Guarantee & Backbone
81
Sustainability
66
Sourced specification values
Published power range440–455 W
Scored benchmark455 W
Module efficiency22.4%
Temp. coefficient Pmax-0.29 %/°C
First-year degradation1%
Annual degradation0.4 %/yr
Product warranty30 yr
Performance warranty30 yr
EncapsulationGlass-glass (framed)
Energy yield test resultNot independently yield-tested
Reliability testingNot independently tested
Carbon footprint / EPDCarbon footprint / corporate ESG stated (no EPD)
Hail resistanceEnhanced hail 35mm certified

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)

Performance 7 · every criterion scored by the live rubric (Solar Analytica panel rubric v2.14.0), 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 technology tierTOPCon tierdatasheetSource
Encapsulation & frame constructionGlass-glass (framed)datasheetSource
ContactAdvanced MBBdatasheetNo link
Fire classification (IEC 61730)CertifiedstatedNo link
Efficiency & Yield
Module efficiency (%)22.4datasheetSource
Independent energy yieldNot independently yield-testedreviewed absenceSource
Temp coefficient Pmax (%/C)-0.29datasheetSource
Bifaciality factor (%)80.0statedNo link
Power tolerance (%)3datasheetSource
Durability (verified)
Verified reliabilityNot independently testedreviewed absenceSource
Positive loading (MQT16, Pa)6000datasheetSource
Negative loading (MQT16, Pa)4000datasheetSource
PID (IEC TS 62804)Independently tested / certifiedstatedNo link
Salt mist (IEC 61701)Severity 6datasheetNo link
Hail resistanceEnhanced hail 35mm certifiedderivedNo link
Ammonia resistance (IEC 62716)Not listeddatasheetSource +1
LeTID resistance (IEC TS 63342)Independently tested / certified, figure not publisheddatasheetSource

review.solar · audit sheet · Solar Analytica panel rubric v2.14.0 · https://review.solar/cards/maxeon-solar-technologies-sunpower-brand-sunpower-performanc

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

Performance 7 · continued from page 2 · Solar Analytica rubric Solar Analytica panel rubric v2.14.0.

Performance & Degradation
First-year degradation (%)1.0datasheetSource
Annual degradation (%/yr)0.4datasheetSource
Performance guarantee period (yrs)30datasheetSource
Guarantee & Backbone
Guarantee period (yrs)30datasheetSource
Guarantee assuranceParts, Service & TransportdatasheetSource
Warranty transferabilityTransferable (buyer registration required within grace period)datasheetSource
Financial strength & warranty backingFinancial distress / going-concern riskdatasheetSource
Manufacturing track record15+ years, field-provensecondarySource Archived
Sustainability
Carbon footprint / EPDCarbon footprint / corporate ESG stated (no EPD)datasheetSource
End-of-life & recycling disclosureTake-back or recycling program publishedstatedSource

review.solar · audit sheet · Solar Analytica panel rubric v2.14.0 · https://review.solar/cards/maxeon-solar-technologies-sunpower-brand-sunpower-performanc