The assessment
How it scores, by category
Market position
The data
All-in-one energy system
Presents storage and power conversion as one integrated product or product platform.
- Product role
- Battery modules, inverter functions and controls are packaged as one purchasing architecture.
- Published range
- 5.12–30.72 kWh
- Phase
- Single phase
- Backup boundary
- Installation-specific
What the documents establish
Published evidence, source-reviewed non-disclosure and unresolved questions remain separate from the product score.
Capacity guarantee: minimum retained at year 10
No year-by-year capacity schedule is published for this product - the manufacturer guarantees only this end-of-term minimum, not a specific decline curve.
Blackout protection
67 / 100#35 of 90 batteriesPartial (essential loads)
The blackout score is a standalone benchmark of outage resilience only - it re-weights sourced specs already scored in this product’s pillars (backup tier, switchover, surge strength, backup power, off-grid recharge) and never affects the overall score. Dots show the full battery fleet; the marker is this product.
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. Capacity range describes supported configurations; the score remains anchored to the named reviewed reference configuration, not the largest stack. Scored model: HM6 with two 5.12 kWh modules (10.24 kWh nominal) · checked 2026-07-31. Evidence.
Sources & references · checked 2026-09-01
Strong evidence coverage
14 of 14 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. ESY SUNHOME HM5/HM6 datasheet v1.5 and AU single-phase warranty v4.5. First-market US and DE overlay review 2026-09-01: official regional catalogues recorded; Australian overlays and scores unchanged.
- Sourced valuesData card →
- Warranty summary10-year product warranty →
Show 1 more
- Archived copy of the primary sourcePDF ↗
Product record history
9 changes to this record · 152 products changed in this update
Source revision
- Before
- ESY SUNHOME HM5/HM6 datasheet v1.5 and AU single-phase warranty v4.5
- After
- ESY SUNHOME HM5/HM6 datasheet v1.5 and AU single-phase warranty v4.5. First-market US and DE overlay review 2026-09-01: official regional catalogues recorded; Australian overlays and scores unchanged.
DE Evidence sources
- Before
- Not previously recorded
- After
- https://de.esysunhome.com/; https://www.esysunhome.com/products/residential-ess/hm6/
US Support Note
- Before
- Not previously recorded
- After
- us.esysunhome.com does not publish a United States catalogue naming HM6. The global HM6 page is not a United States sale path. HM5 is a different identity and is not transferred.
US Evidence sources
- Before
- Not previously recorded
- After
- https://us.esysunhome.com/; https://www.esysunhome.com/products/residential-ess/hm6/
DE Support Note
- Before
- Not previously recorded
- After
- de.esysunhome.com does not publish a German catalogue naming HM6. The global HM6 page is not a German sale path.
8 changes to this record · 78 products changed in this update
Evidence sources
- Before
- Not previously recorded
- After
- https://www.esysunhome.com/wp-content/uploads/2026/03/ESYSUNHOME-HM5amp6_datasheet_v1.5.pdf
Evidence sources
- Before
- Not previously recorded
- After
- https://www.esysunhome.com/wp-content/uploads/2026/03/ESYSUNHOME-HM5amp6_datasheet_v1.5.pdf
Confidence
- Before
- Not previously recorded
- After
- high
State
- Before
- Not previously recorded
- After
- reviewed_absence
Confidence
- Before
- Not previously recorded
- After
- high
State
- Before
- Not previously recorded
- After
- reviewed_absence
Value
- Before
- Not previously recorded
- After
- Reviewed 2026-08-25: no exact-product battery/DC round-trip efficiency with a complete measurement boundary was established in the reviewed primary source set. This is a scoped reviewed absence, not proof that the value has never been measured.
Value
- Before
- Not previously recorded
- After
- Reviewed 2026-08-25: no exact-product cycle-life result to exactly 70% retained capacity was established in the reviewed primary source set. Warranty limits and other or unstated endpoints are not converted. This is a scoped reviewed absence.
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.
- Core scorecard evidence checked
- US market evidence checked
- DE market evidence checked
- AU market evidence checked
- Plain-language warranty summary checked
- Series benchmark evidence checked
Scored by Solar Analytica Research
Further reading from Findings
Stay across the benchmark.
New scorecards, score changes and market signals, published as they happen.
Our reading
HM6 scores 60, placing 55 of 74 in the Performance & Value class against a class average of 63.0. Its strongest scoring dimension is power & efficiency (69), above the class average of 66. Energy Ecosystem scores 41, the lowest pillar for this product. The class average on energy ecosystem is 47. Key specifications: LFP, 6.0 kW continuous output.