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Performance & Value

Reserva

6.31–15.79 kWh · LFP · DC-coupled

FroniusReleased 2025

67/ 100

Very good

Global

LFP100% Usable5 kWh Modular

The verdict. In our Performance & Value class, Fronius Reserva leads on capacity & usability. Home-battery reliability is rarely independently verified, so judge on chemistry, safety certification and the backing company.

12thof 24 in Performance & ValueTop halfclass average 66.7
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The assessment

How it scores, by category

Capacity & Usability91
Power & Efficiency86
Longevity (verified)60
Safety & Chemistry71
Guarantee & Backbone58
Energy Ecosystem44

Market position

12thof 24 in Performance & ValueTop half
546781

Our reading

Reserva scores 67, placing 12 of 24 in the Performance & Value class against a class average of 66.7. Its strongest scoring dimension is capacity & usability (91), above the class average of 88. Energy Ecosystem scores 44, the lowest pillar for this product. The class average on energy ecosystem is 50. Key specifications: LFP, 95% round-trip efficiency, 6.55 kW continuous output.

The data

Chemistry
LFP
Power
6.55kW
Round-trip
95%
Cycle life
Not recorded

Capacity guarantee: minimum retained at year 10

6.3 kWhfull4.4at yr 10
60708090100Rated capacity 100%Guaranteed floor 70.0%70.0%0yr2yr4yr6yr8yr10yr
Rated capacity (reference)Guaranteed floor: 70.0% at yr 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

68 / 100#15 of 32 batteries
fleet low 46median 68fleet high 92
No backupGrid-forming

Whole-home (via hybrid inverter)

Continuous power
6.55kW

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.

Before you buy

Two things to check

Local positionUse a market view to check local availability, approvals and warranty scope.

Ask the installer: What usable capacity, backup power and warranted operating conditions will the installed Reserva configuration deliver?

Verification & sources

Market context

Global benchmark. This scorecard is benchmarked globally. A global score does not imply local availability, certification, warranty coverage, or installer compatibility.

Benchmark anchor. Capacity range describes supported configurations; the score remains anchored to the named reviewed reference configuration, not the largest stack. Scored model: Reserva 6.3 (6.31 kWh usable) · checked 2026-07-31. Evidence.

Sources & references · checked 2026-07-31

Strong evidence coverage

14 of 14 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.

Evidence timeline

Recorded verification events for this scorecard. These are evidence checks, not historical score snapshots.

  1. Core scorecard evidence checked
  2. Series benchmark source checked
  3. AU 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.