Compare like with like. Aligned scores, specifications and local evidence within one scoring class or tier.
Market context
Australia purchasing view
NeoVolt | BW-INV-SPH5K with one BW-BAT-10.1P; 5 kW single-phase hybrid and 9.6 kWh usable scored reference
63/ 100
Strong evidence coverage · 100%
Evidence checked 2026-09-04
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
67/ 100
Strong evidence coverage · 100%
Evidence checked 2026-09-01
Available in Australia · checked 2026-08-29
Buyer evidence: Ready (100% direct coverage).
| Measure | Single Phase 5 | Smile G3 S5 / BAT-10.1P |
|---|---|---|
| Capacity & Usability | ||
| Power & Efficiency | ||
| Longevity (verified) | ||
| Safety & Chemistry | ||
| Guarantee & Backbone | ||
| Energy Ecosystem |
| Measure | Single Phase 5 | Smile G3 S5 / BAT-10.1P |
|---|---|---|
| Architecture | All-in-one energy system | All-in-one energy system |
| Published usable capacity range | 9.6–57.6 kWh | 9.6–57.6 kWh |
| Scored benchmark | 9.6 kWh | 9.6 kWh |
| Chemistry | LFP | LFP |
| Power | 5.0 kW | 5 kW |
| Round-trip | Not recorded | Not recorded |
| Cycle life | Not recorded | Not recorded |
| Evidence | Single Phase 5 | Smile G3 S5 / BAT-10.1P |
|---|---|---|
| Outcome | Available in Australia | Available in Australia |
| Checked | 2026-08-02 | 2026-08-29 |
| Certifications | The exact Australian system datasheet publishes AS/NZS 4777.2:2020, IEC/EN 62109-1/-2 and IEC 62619:2022., The 6 September 2026 CER approved-battery export, retrieved 7 September 2026, retains exact BW-BAT-10.1P and its II, III, IV, V and VI variants under manufacturer Suzhou Bytewatt Technology Co Ltd. Those rows carry an approved date of 7 March 2023 and an expiry date of 5 June 2026. That expiry date has passed and the export carries no renewed BW-BAT-10.1P row. These rows do not establish eligibility for a new installation of the exact battery after the expiry date. Cited source_version au-cer-battery-2026-09-06-c074023b3804., The 6 September 2026 CER approved-inverter export, retrieved the same day, lists the paired BW-INV-SPH5K (AS4777-2 2020) under the same manufacturer. That row carries an approved date of 22 May 2023 and an expiry date of 18 November 2026. The BW-BAT-9.6P and BW-BAT-4.8S rows in the battery export are separate identities and are not transferred. SMILE-BAT-10.1P and SMILE-G3-BAT-10.1P are listed to Alpha ESS Co Ltd, a different manufacturer, and are not transferred. Cited source_version au-cer-inverter-2026-09-06-733db02cccc8. | 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 and New Zealand; the inverter and BW-BAT-10.1P receive 10-year product cover and a 70% retained-capacity endpoint. Standard solar self-consumption, time shifting and backup use carry unlimited-cycle coverage, subject to the published conditions. | 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 | On-site or service-centre repair, or replacement at Bytewatt's option. | Repair or replacement at AlphaESS's option. |
| Labour and reinstallation | The installer rebate is conditional and not full labour cover. Removal and reinstallation are not promised. | Installer travel and on-site labour are excluded. Removal and reinstallation are not promised. |
| Freight | Replacement dispatch and return conditions apply; full freight cover is not promised. | Replacement-parts freight is covered for an accepted claim. |
| Transfer and registration | No clear later-owner transfer process was found in the governing terms. Authorised installation, claim evidence and RMA conditions apply. | 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 | Single-phase 230 V hybrid system with AS/NZS 4777.2:2020, 5 kW rated grid and backup output, and transfer below 10 ms. | 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 | The scored reference is Bytewatt's blue-enclosure BW-INV-SPH5K and BW-BAT-10.1P system. It is separate from VoltX vBox and from NeoVolt's white-enclosure BW-BAT-9.6P platform. The two halves carry different Australian listing states in the 6 September 2026 exports. The approved-inverter export lists the paired BW-INV-SPH5K with an expiry date of 18 November 2026. The exact BW-BAT-10.1P row's expiry date of 5 June 2026 has passed and the approved-battery export carries no renewed row. The scored BW-BAT-10.1P is not a current Australian approved battery. The exact Australian system datasheet and AU/NZ warranty reviewed 1 August 2026 remain the cited evidence for this record. An expired approval row does not by itself establish a discontinuation or a legacy state for the exact system. | 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 | Not in the structured register | Not in the structured register |
| Register: labour and service | Not in the structured register | Not in the structured register |
| Register: transport and freight | Not in the structured register | Not in the structured register |
| Register: registration | Not in the structured register | Not in the structured register |
| Register: transferability | Not in the structured register | Not in the structured register |
| Register: explicit unknowns | Not in the structured register | 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.