review.solar · Sourced values document
Prime QD
420–440 W · Mono-glass
Silfab
Specialist & Local
Released 2022 · Evidence checked 2026-09-01 · Scored to Solar Analytica panel rubric v2.16.0
65/100
Very good
Overall
Score by category
Architecture & Design
54
Efficiency & Yield
59
Durability (verified)
66
Performance & Degradation
78
Guarantee & Backbone
72
Sustainability
64
Sourced specification values
Published power range420–440 W
Scored benchmark440 W
Module efficiency22.6%
Temp. coefficient Pmax-0.29 %/°C
First-year degradation2%
Annual degradation0.3 %/yr
Product warranty25 yr
Performance warranty30 yr
EncapsulationGlass-backsheet (standard or unspecified backsheet)
Energy yield test resultBrand or series yield-tested; exact model not covered
Hail resistanceIEC 61215 standard (25mm)

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

Prime QD · every criterion scored by the live rubric (Solar Analytica panel rubric v2.16.0), with its recorded value, evidence status, and any linked source. Page 1 carries the buying-decision summary; this page is the full record for verification and right of reply.

Architecture & Design
Encapsulation & frame constructionGlass-backsheet (standard or unspecified backsheet)datasheetSource +1
Fire classification (IEC 61730)CertifieddatasheetSource +1
Efficiency & Yield
Module efficiency (%)22.6datasheetSource +1
Independent energy yieldBrand or series yield-tested; exact model not covered3rd partySource +1
Temp coefficient Pmax (%/C)-0.29datasheetSource +1
NOCT (C)45datasheetSource +1
Power tolerance (%)2datasheetSource +1
Durability (verified)
Positive loading (MQT16, Pa)5400datasheetSource +1
Negative loading (MQT16, Pa)4000datasheetSource +1
PID (IEC TS 62804)Not addressedreviewed absenceSource +1
Salt mist (IEC 61701)Certified (IEC 61701), severity not publisheddatasheetSource +1
Hail resistanceIEC 61215 standard (25mm)datasheetSource +1
Ammonia resistance (IEC 62716)IEC 62716 certifieddatasheetSource +1
Performance & Degradation
Guaranteed end-of-warranty output (%)89.3datasheetSource +1
First-year degradation (%)2.0datasheetSource +1
Annual degradation (%/yr)0.3datasheetSource +1
Performance guarantee period (yrs)30datasheetSource +1
Guarantee & Backbone
Guarantee period (yrs)25datasheetSource +1
Guarantee assuranceParts onlydatasheetSource +1
Warranty transferabilityFully transferable (new owner, no registration required)datasheetSource +1
Manufacturing track record15+ years, field-provendatasheetSource +1
Sustainability
End-of-life & recycling disclosureTake-back or recycling program publisheddatasheetSource +2

review.solar · audit sheet · Solar Analytica panel rubric v2.16.0 · https://review.solar/cards/silfab-solar-silfab-prime-sil-440-qd-north-american-made