Compare like with like. Aligned scores, specifications and local evidence within one scoring class or tier.
Market context
Australia purchasing view
Fronius | Reserva 6.3 / 9.5 / 12.6 / 15.8; scored reference Reserva 6.3 (6.31 kWh usable)
67/ 100
Strong evidence coverage · 100%
Evidence checked 2026-08-31
Available in Australia · checked 2026-08-02
Buyer evidence: Ready (100% direct coverage).
AlphaESS | SMILE-G3-S5 with one SMILE-G3-BAT-10.1P; 9.6 kWh usable reference, 1-6 modules
68/ 100
Strong evidence coverage · 100%
Evidence checked 2026-09-22
Available in Australia · checked 2026-08-29
Buyer evidence: Ready (100% direct coverage).
| Measure | Reserva | Smile G3 S5 / BAT-10.1P |
|---|---|---|
| Capacity & Usability | ||
| Power & Efficiency | ||
| Longevity (verified) | ||
| Safety & Chemistry | ||
| Guarantee & Backbone | ||
| Energy Ecosystem |
| Measure | Reserva | Smile G3 S5 / BAT-10.1P |
|---|---|---|
| Architecture | DC-coupled battery | All-in-one energy system |
| Published usable capacity range | 6.31–15.79 kWh | 9.6–57.6 kWh |
| Scored benchmark | 6.31 kWh | 9.6 kWh |
| Chemistry | LFP | LFP |
| Power | 6.55 kW | 5 kW |
| Round-trip | 95 % | Not recorded |
| Cycle life | Not recorded | Not recorded |
| Evidence | Reserva | Smile G3 S5 / BAT-10.1P |
|---|---|---|
| Outcome | Available in Australia | Available in Australia |
| Checked | 2026-08-02 | 2026-08-29 |
| Certifications | The exact datasheet publishes IEC 62619:2022, VDE 2510-50, UN 38.3 and CE compliance. | The exact BAT-10.1P datasheet lists IEC 62619, IEC 63056, IEC 62040 and UN 38.3; the SMILE-G3-S5 AU system datasheet lists AS 4777.2 and IEC 62109. |
| Warranty scope | Australia is Warranty Country Group 3. Under the Fronius International Limited Warranty Conditions for batteries (revision EN_0326, applying to products purchased on or after 1 October 2026), Reserva 6.3 has a 10-year warranty period that begins six months after initial delivery from Fronius, a 70% retained-capacity or 19.57 MWh throughput limit, whichever occurs first, and Fronius Warranty Plus cover for removal and replacement labour and standard national shipping. | Australia; the 11 October 2024 warranty names SMILE-G3-S5 and BAT-10.1P with a ten-year term, 70% retained capacity and a 3.12 MWh/kWh throughput condition for eligible installations from 1 November 2024. |
| Warranty remedy | Fronius may, at its discretion, repair the product, replace it with an equivalent product of corresponding design and condition or with a newer product, or, if a replacement product is not available and repair is impossible or possible only at disproportionate cost, give a credit towards a new Fronius product calculated as 'Selling price * (100 % - useful life/performance warranty period)' (clause 5.1). Under Fronius Warranty Plus the spare part or replacement device may be new or reconditioned, or its market value may be reimbursed (clauses 6.3.1 and 13.4). | Repair or replacement at AlphaESS's option. |
| Labour and reinstallation | Labour directly associated with removal and replacement is covered when carried out by Fronius or a specialist installer commissioned by Fronius; costs not authorised in advance in writing by Fronius are not borne (clauses 6.3.1 and 6.3.3). Approved removal and replacement are covered; additional travel is excluded. | Clause 2 excludes travelling and accommodation costs of persons for on-site support and does not name labour as covered or excluded. The warranty requires a qualified installer to be available for exchange and re-commissioning (clause 3) and obliges the original installer to assist with replacement (clause 10); reimbursement of necessary and reasonably incurred costs of a valid claim may be claimed with documentary evidence (clauses 2 and 10). Removal and reinstallation are not promised. |
| Freight | Normal domestic shipping is covered. | Replacement-parts freight is covered for an accepted claim. |
| Transfer and registration | The remaining warranty automatically transfers with the covered product. Revision EN_0326 refers in clause 1.2 to registered products but sets out no registration procedure or deadline; cover requires purchase as a new device from Fronius, an authorised dealer or a professional installer, and commissioning by a professional installer (clause 2.2). The operating manual states that, where a warranty applies, the product should be registered at https://warranty.fronius.com/ to activate or extend the warranty. | The warranty is non-transferable except where the products remain installed in a building, in which case it transfers to a later purchaser of that building. Serial registration before a claim, and installation by an SAA-accredited installer with a valid Alpha Installer ID, are required. |
| Grid/network approval evidence | High-voltage DC-coupled battery for compatible Fronius hybrid inverters; backup capability depends on the paired inverter and installation. | The exact AU system is a 5 kW, 230 V single-phase hybrid under AS 4777.2. Current project approval and installer eligibility remain installation-specific. |
| Local product pathway | No separate local pathway recorded | No separate local pathway recorded |
| Buyer evidence | Ready (100% direct coverage): Local availability, buyer evidence, and the publication threshold are confirmed. | Ready (100% direct coverage): Local availability, buyer evidence, and the publication threshold are confirmed. |
| Safety notice | No model-specific notice recorded | No model-specific notice recorded |
| Review note | Fronius Australia publishes the exact Reserva platform and local support page. | AlphaESS's current 2026 Australian brochure lists SMILE-G3-S5/B5 with both BAT-10.1P and BAT-9.3S. The battery options coexist; neither is presented as the formal successor to the other. |
| Register: parts term | stated: Ten-year battery product warranty. | Not in the structured register |
| Register: labour and service | stated: Warranty Plus includes authorised removal and replacement labour when performed by Fronius or a service provider commissioned by Fronius, subject to the instrument. | Not in the structured register |
| Register: transport and freight | stated: Standard national shipment for replacement material is included; express, air, sea, customs and other exceptional costs are outside the stated standard cover. | Not in the structured register |
| Register: registration | not stated: No separate end-user registration condition was located for the stated ten-year Reserva term. | Not in the structured register |
| Register: transferability | stated: Warranty rights pass with product ownership, subject to proof and the warranty conditions. | Not in the structured register |
| Register: explicit unknowns | 2 retained | Not in the structured register |
| Latest reviewed Approval Watch event | No exact-identity event in reviewed history | No exact-identity event in reviewed history |
| Sources | Source 1Source 2Source 3 | Source 1Source 2Source 3Source 4Source 5Source 6 |
These checks sit beside the benchmark score. They are site, tariff and contract questions that no product score can settle.
Ask for every model number to appear on the quote and order. The Clean Energy Council product lists are live: STC creation requires listed products at installation, and network requirements may also depend on current approval.
Have the retailer state the supply phase, inverter connection limit, export limit and any export-control cost. The local network connection agreement, not a generic datasheet, determines those settings. See the Australian Government's connection guidance.
Ask which bills or interval data, tariff, feed-in rate, export limit and future loads support the savings and payback claim. Self-consumed electricity and tariff timing usually matter more than a headline feed-in rate. See the system sizing and battery savings guidance.
Define the usable energy, output power, backed-up circuits and outage behaviour. Confirm whether VPP participation, an internet connection, or an additional controller changes the configuration, reserve level, warranty or support path.
Keep the retailer, installer, manufacturer warranty and escalation path in the contract. Australian Consumer Law guarantees apply separately from any manufacturer warranty; where one business supplied both product and installation, it is generally responsible for the remedy. See the ACCC guidance.
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.