The assessment
How it scores, by category
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
- 7.8 kWh
- Phase
- Not recorded
- Backup boundary
- Installation-specific
What the documents establish
Published evidence, source-reviewed non-disclosure and unresolved questions remain separate from the product score.
Usable capacity
97% of this battery’s nominal capacity is usable, 7.8 kWh in the scored configuration.7.8 kWh usableScored configuration: SigenStor-5S-8 (EC 5.0 SP plus BAT 8.0).
The remaining 3% stays in the pack as reserve; the home never draws it.
Nominal capacity is not stated here. The usable kWh and the depth-of-discharge percentage are sourced separately, at times from different documents and different module counts, so dividing one by the other would produce a nominal figure no manufacturer published.
Usable capacity sourceDepth-of-discharge source 1Depth-of-discharge source 2Capacity 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.
Blackout protection
81 / 100#6 of 66 batteriesWhole-home, seamless (<20ms)
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. The score is confined to SigenStor-5S-8 and does not inherit specifications from larger stacks or controllers. Scored model: SigenStor-5S-8 (EC 5.0 SP plus BAT 8.0) · checked 2026-08-07. Evidence.
Australian warranty decision
1 product record
Read the Australian warranty as a claim pathway: the headline term is separate from remedy, labour, freight, site work, transfer and registration conditions.
Sigenergy SigenStor 7.8 kWh · Home battery
Australian evidence checked 2026-08-07.
Covered7 sources
Australian warranty scope: Australia and New Zealand; Sigenergy Technology Co., Ltd. and its affiliates provide ten years and 70% retained usable energy or 23.77 MWh for BAT 8.0, whichever occurs first.
Structured claim terms: Recorded.
- Term
- 10 yr productStated in the structured comparison
- Product remedy
- CoveredConfiguration or software repair, parts repair, new or refurbished replacement, or equivalent upgraded hardware at Sigenergy's option.
- Labour
- CoveredOn-site repair labour, uninstalling and reinstalling of replaced parts, and basic travel are covered for an accepted claim.
- Freight
- CoveredNormal ground freight and customs duties for replaced parts and the defective return are covered.
- Removal and reinstallation
- CoveredApproved on-site removal and reinstallation of replaced parts or products are covered.
- Transferability
- CoveredOne transfer is permitted while the equipment remains at the original installation site.
- Registration and conditions
- ConditionalActivation, registration and internet connectivity are required; over 90 days offline triggers Safe Operation Mode and over one year can reduce cover to five years.
Sources & references · checked 2026-08-07
Strong evidence coverage
28 of 28 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.
- Sourced valuesData card →
- Warranty summary10-year product warranty →
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- EV charging integrationManufacturer ↗
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- Continuous power output (kW)Manufacturer ↗
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Evidence timeline
Recorded verification events for this scorecard. These are evidence checks, not historical score snapshots.
- Core scorecard evidence checked
- AU market evidence checked
- Series benchmark evidence checked
- Plain-language warranty summary checked
- US market evidence checked
Scored by Solar Analytica Research
Further reading from Signals
Stay across the benchmark.
New scorecards, score changes and market signals, published as they happen.
Our reading
Its strongest scoring dimension is capacity & usability (90). Longevity (verified) (59) is the dimension with the most room to move. Key specifications: LFP, 5.0 kW continuous output.