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
- 20.6 kWh
- Phase
- Three phase
- Backup boundary
- Installation-specific
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. 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 seven-module configuration. Battery output, inverter AC output and replacement-power behavior are published separately. Scored model: S10 X 21 with seven battery modules · checked 2026-08-06. Evidence.
Sources & references · checked 2026-08-06
Strong evidence coverage
12 of 12 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 →
- Backup switching speedManufacturer ↗
Evidence timeline
Recorded verification events for this scorecard. These are evidence checks, not historical score snapshots.
- Core scorecard evidence checked
- Series benchmark source checked
- DE 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
S10 X 21 scores 51, placing 49 of 49 in the Performance & Value class against a class average of 65.2. Its strongest scoring dimension is safety & chemistry (61). Energy Ecosystem scores 40, the lowest pillar for this product. The class average on energy ecosystem is 51. Key specifications: LFP, 11 kW continuous output.