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
- 257 kWh
- Phase
- Three phase
- Backup boundary
- Installation-specific
Usable capacity
100% of this battery’s nominal capacity is usable, 257 kWh in the scored configuration.257 kWh usableScored configuration: ST255CS-2H.
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 source 1Depth-of-discharge source 2Verification & 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 one ST255CS-2H cabinet at the 257 kWh nominal capacity named on the V2 sheet linked from Sungrow India's ST255CS-2H card. ST510CS-4H is a different identity. Scored model: ST255CS-2H · checked 2026-09-04. Evidence.
Sources & references · checked 2026-09-04
Strong evidence coverage
23 of 23 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. Sungrow ST255CS-2H PowerStack datasheet Version 2 linked from the India ST255CS-2H page.
- Sourced valuesData card →
- Usable energy / DoD (%)Manufacturer ↗
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- Warranty period (yrs)Warranty ↗
- Warranty period (yrs)Manufacturer ↗
- Financial strength & warranty backingManufacturer ↗
- Financial strength & warranty backingManufacturer ↗
- Firmware & security disclosureManufacturer ↗
Product record history
Product record
kind: battery; brand: Sungrow; name: PowerStack ST255CS-2H; model: Current India-listed PowerStack ST255CS-2H liquid-cooled C&I energy storage cabinet; scored model ST255CS-2H; score: 64
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.
- Core scorecard evidence checked
- IN 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
PowerStack ST255CS-2H scores 64, placing 33 of 76 in the Performance & Value class against a class average of 63.0. Its strongest scoring dimension is capacity & usability (89), running 5.7 points above the class average on this dimension. Longevity (verified) scores 43, the lowest pillar for this product. The class average on longevity (verified) is 58. Key specifications: LFP, 125.0 kW continuous output.