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

Market context

Global benchmark

Performance & Value

Reserva

Fronius

67/ 100

Very good

Strong evidence coverage · 100%

Evidence checked 2026-07-31

LFP100% Usable5 kWh Modular
Full scorecard
Performance & Value

Smile G3 S5

AlphaESS

78/ 100

Superior

Moderate evidence coverage · 58%

Evidence checked 2026-07-16

LFPUL9540AVPP-Ready
Full scorecard
Side by side

Score profile

MeasureReservaSmile G3 S5
Capacity & Usability91 / 10086 / 100
Power & Efficiency86 / 10080 / 100
Longevity (verified)60 / 10070 / 100
Safety & Chemistry71 / 10087 / 100
Guarantee & Backbone58 / 10078 / 100
Energy Ecosystem44 / 10067 / 100

Capacity & Usability

Reserva
91 / 100
Smile G3 S5
86 / 100

Power & Efficiency

Reserva
86 / 100
Smile G3 S5
80 / 100

Longevity (verified)

Reserva
60 / 100
Smile G3 S5
70 / 100

Safety & Chemistry

Reserva
71 / 100
Smile G3 S5
87 / 100

Guarantee & Backbone

Reserva
58 / 100
Smile G3 S5
78 / 100

Energy Ecosystem

Reserva
44 / 100
Smile G3 S5
67 / 100
Side by side

Key specifications

MeasureReservaSmile G3 S5
Published usable capacity range6.31–15.79 kWh8.2–60.5 kWh
Scored benchmark6.31 kWh9.6 kWh
ChemistryLFPLFP
Power6.55 kW5 kW
Round-trip95 %95 %
Cycle lifeNot recorded10,000 cycles

Published usable capacity range

Reserva
6.31–15.79 kWh
Smile G3 S5
8.2–60.5 kWh

Scored benchmark

Reserva
6.31 kWh
Smile G3 S5
9.6 kWh

Chemistry

Reserva
LFP
Smile G3 S5
LFP

Power

Reserva
6.55 kW
Smile G3 S5
5 kW

Round-trip

Reserva
95 %
Smile G3 S5
95 %

Cycle life

Reserva
Not recorded
Smile G3 S5
10,000 cycles
Decision snapshot

Where the comparison separates

OverallSmile G3 S5 leads the global score by 11 points.
Strongest dimensionsReserva: Capacity & Usability · Smile G3 S5: Safety & Chemistry
Largest differenceSmile G3 S5 has the largest pillar edge in Energy Ecosystem (23 points).
Evidence coverageReserva: strong evidence coverage (100%) · Smile G3 S5: moderate evidence coverage (58%)

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.