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Premium Performance · legacy record

EverVolt HK2

420–430 W · HJT

PanasonicReleased 2021

73/ 100

Very good

Global

Heterojunction (HJT)Class-Leading Temp Coeff

The verdict. In our Premium Performance class, Panasonic EverVolt HK2 leads on durability (verified). See the financial standing note above. A long warranty is only as good as the business behind it.

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Legacy record. Panasonic Corporation of North America states that it discontinued its solar and battery storage business line. Existing customer support continues and Panasonic states that applicable warranties will be honoured. Source. Scored 73 under panel v2.5.0 and frozen as of 2026-07-05: this product is no longer in active assessment or live comparison, and its score is not maintained against the current rubric.
Worth knowing. Panasonic has discontinued its US solar and battery storage business and no longer sells these products. Its live support service says it continues to support existing customers and active product warranties, including claims and transfers. Replacement options nevertheless depend on a company that has left the category. Source. A warranty is only as valuable as the entity standing behind it. Ask your retailer who services this warranty now.

The assessment

How it scores, by category

Architecture & Design61
Efficiency & Yield52
Durability (verified)70
Performance & Degradation40
Guarantee & Backbone47
Sustainability64

Our reading

Its strongest scoring dimension is durability (verified) (70), running 12.3 points above the class average on this dimension. Performance & Degradation scores 40, the lowest pillar for this product. The class average on performance & degradation is 78. Underlying specifications include a Heterojunction (HJT) cell technology.

The data

Power
430W
Efficiency
Not recorded
Cell
Heterojunction (HJT)
Temp coeff
-0.24%/°C
Technology architecture

HJT 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
420–430 W
Electrical layer
DC module output
Construction
Not recorded
Architecture describes the product boundary. It is not a system design or an equipment-pairing decision.
Before you buy
Local positionUse a market view to check local availability, approvals and warranty scope.
Ask the installerWill the quote name the exact EverVolt HK2 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 US rating for this exact series. Scored model: EverVolt EVPV430HK2-BLK · checked 2026-07-16. Evidence.

Sources & references · checked 2026-08-01

Strong evidence coverage

9 of 9 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. Panasonic EVERVOLT HK2 RS23184DS-R6, EVPV420/430HK2

Change ledger

Product record history

  1. Record updated

    Durability (verified) pillar score

    Before
    69.6
    After
    69.5
    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. Series benchmark evidence checked
  3. AU market evidence checked
  4. Legacy product record archived
  5. Plain-language warranty summary checked

Evidence record (JSON)

Scored by Solar Analytica Research

Further reading from Findings

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