review.solar · Sourced values document
EverVolt HK2
420–430 W · HJT
Panasonic
Premium Performance
Released 2021 · Evidence checked 2026-08-01 · Scored to Solar Analytica panel rubric v2.14.0
73/100
Very good
Overall
Score by category
Architecture & Design
61
Efficiency & Yield
52
Durability (verified)
70
Performance & Degradation
40
Guarantee & Backbone
47
Sustainability
64
Sourced specification values
Published power range420–430 W
Scored benchmark430 W
Temp. coefficient Pmax-0.24 %/°C

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

EverVolt HK2 · 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 page is the full record for verification and right of reply.

Architecture & Design
Cell technology tierHeterojunction (HJT) tierdatasheetSource
Fire classification (IEC 61730)CertifiedstatedSource
Efficiency & Yield
Temp coefficient Pmax (%/C)-0.24datasheetSource
Durability (verified)
Positive loading (MQT16, Pa)7000statedSource
Negative loading (MQT16, Pa)4000statedSource
PID (IEC TS 62804)Independently tested / certifiedstatedSource
Salt mist (IEC 61701)Severity 1statedSource
Guarantee & Backbone
Guarantee assuranceParts, Service & TransportdatasheetSource
Sustainability
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/panasonic-panasonic-evervolt-hk2-hjt-cautionary-exited-solar