The assessment
How it scores, by category
Market position
The data
DC-coupled battery
Stores DC energy and relies on system power electronics outside the battery product for household AC.
- Product role
- The published battery record covers the storage stack, controller and stated capacity range.
- Published range
- 17.7 kWh
- Phase
- Not recorded
- Backup boundary
- Installation-specific
Usable capacity
100% of this battery’s nominal capacity is usable, 17.7 kWh in the scored configuration.17.7 kWh usableScored configuration: EU0407N00B_5S.
No reserve is withheld at the stated depth of discharge.
At a sourced 100% depth of discharge the usable and nominal figures are the same number, so no separate nominal capacity is stated.
Usable capacity sourceDepth-of-discharge sourceCapacity 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. Capacity figure based on the sourced usable capacity of the base configuration; modular systems scale with additional modules.
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 uses the exact reviewed reference configuration; larger stacks do not receive a capacity-size advantage. Scored model: EU0407N00B_5S · checked 2026-08-08. Evidence.
Australian warranty decision
0 product records
Read the Australian warranty as a claim pathway: the headline term is separate from remedy, labour, freight, site work, transfer and registration conditions.
No available Australian warranty decision record is published for this product. No coverage is inferred.
Sources & references · checked 2026-08-08
Strong evidence coverage
15 of 15 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. GM Energy PowerBank specification version 1.2 and limited warranty dated August 2024, exact e1.17 model boundary reviewed 8 August 2026
- Sourced valuesData card →
Evidence timeline
Recorded verification events for this scorecard. These are evidence checks, not historical score snapshots. No change to this product record has been published since the change ledger opened on 2026-08-16.
- Core scorecard evidence checked
- US market evidence 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
PowerBank e1.17 scores 56, placing 55 of 63 in the Performance & Value class against a class average of 63.4. Its strongest scoring dimension is capacity & usability (82). Energy Ecosystem scores 39, the lowest pillar for this product. The class average on energy ecosystem is 48.