Compare Solar Panels, Batteries & Inverters Side by Side

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Compare like with like. Aligned scores, specifications and local evidence within one scoring class or tier.

Market context

Global benchmark

Product AComparable product

Performance & Value

PowerStack ST255CS-2H257 kWh

Sungrow | Current India-listed PowerStack ST255CS-2H liquid-cooled C&I energy storage cabinet; scored model ST255CS-2H

LFPAll-in-oneThree-phase

64/ 100

Good

Strong evidence coverage · 100%

Evidence checked 2026-09-04

LFP100% UsableHigh Power 10kW+15+ Yrs Field-Proven

Full scorecard

Performance & Value

Smile G3 S5 / BAT-10.1P9.6–57.6 kWh

AlphaESS | SMILE-G3-S5 with one SMILE-G3-BAT-10.1P; 9.6 kWh usable reference, 1-6 modules

LFPAll-in-oneSingle-phase

67/ 100

Very good

Strong evidence coverage · 100%

Evidence checked 2026-09-01

LFPVPP-Ready

Full scorecard

Side by side

Score profile

Measure	PowerStack ST255CS-2H	Smile G3 S5 / BAT-10.1P
Capacity & Usability	89 / 100	82 / 100
Power & Efficiency	63 / 100	62 / 100
Longevity (verified)	43 / 100	65 / 100
Safety & Chemistry	79 / 100	75 / 100
Guarantee & Backbone	69 / 100	62 / 100
Energy Ecosystem	50 / 100	58 / 100

Capacity & Usability

PowerStack ST255CS-2H: 89 / 100
Smile G3 S5 / BAT-10.1P: 82 / 100

Power & Efficiency

PowerStack ST255CS-2H: 63 / 100
Smile G3 S5 / BAT-10.1P: 62 / 100

Longevity (verified)

PowerStack ST255CS-2H: 43 / 100
Smile G3 S5 / BAT-10.1P: 65 / 100

Safety & Chemistry

PowerStack ST255CS-2H: 79 / 100
Smile G3 S5 / BAT-10.1P: 75 / 100

Guarantee & Backbone

PowerStack ST255CS-2H: 69 / 100
Smile G3 S5 / BAT-10.1P: 62 / 100

Energy Ecosystem

PowerStack ST255CS-2H: 50 / 100
Smile G3 S5 / BAT-10.1P: 58 / 100

Side by side

Key specifications

Show differences only (4 of 7 rows match)

Measure	PowerStack ST255CS-2H	Smile G3 S5 / BAT-10.1P
Architecture	All-in-one energy system	All-in-one energy system
Published usable capacity range	257 kWh	9.6–57.6 kWh
Chemistry	LFP	LFP
Power	125.0 kW	5 kW
Round-trip	Not recorded	Not recorded
Cycle life	Not recorded	Not recorded
Scored benchmark	Not stated	9.6 kWh

Architecture

PowerStack ST255CS-2H: All-in-one energy system
Smile G3 S5 / BAT-10.1P: All-in-one energy system

Published usable capacity range

PowerStack ST255CS-2H: 257 kWh
Smile G3 S5 / BAT-10.1P: 9.6–57.6 kWh

Chemistry

PowerStack ST255CS-2H: LFP
Smile G3 S5 / BAT-10.1P: LFP

Power

PowerStack ST255CS-2H: 125.0 kW
Smile G3 S5 / BAT-10.1P: 5 kW

Round-trip

PowerStack ST255CS-2H: Not recorded
Smile G3 S5 / BAT-10.1P: Not recorded

Cycle life

PowerStack ST255CS-2H: Not recorded
Smile G3 S5 / BAT-10.1P: Not recorded

Scored benchmark

PowerStack ST255CS-2H: Not stated
Smile G3 S5 / BAT-10.1P: 9.6 kWh

Decision snapshot

Where the comparison separates

OverallSmile G3 S5 / BAT-10.1P leads the global score by 3 points.

Strongest dimensionsPowerStack ST255CS-2H: Capacity & Usability · Smile G3 S5 / BAT-10.1P: Capacity & Usability

Largest differenceSmile G3 S5 / BAT-10.1P has the largest pillar edge in Longevity (verified) (22 points).

Evidence coveragePowerStack ST255CS-2H: strong evidence coverage (100%) · Smile G3 S5 / BAT-10.1P: strong evidence coverage (100%)

A score lead is only meaningful inside this shared class or tier. Weigh it against the specification and evidence rows above before deciding.

Both products are scored in the Performance & Value class, on the same rubric weighting. Scores are not comparable across classes or tiers. Full methodology.