Compare like with like. Aligned scores, specifications and local evidence within one scoring class or tier.
Market context
Australia purchasing view
GoodWe | ESA G20 single-phase all-in-one platform; scored reference GW8K-EHA-G20 with GW8.3-BAT-D-G20 (8.0 kWh usable)
65/ 100
Strong evidence coverage · 100%
Evidence checked 2026-08-16
Available in Australia · checked 2026-08-07
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 | ESA G20 | Smile G3 S5 / BAT-10.1P |
|---|---|---|
| Capacity & Usability | ||
| Power & Efficiency | ||
| Longevity (verified) | ||
| Safety & Chemistry | ||
| Guarantee & Backbone | ||
| Energy Ecosystem |
| Measure | ESA G20 | Smile G3 S5 / BAT-10.1P |
|---|---|---|
| Architecture | All-in-one energy system | All-in-one energy system |
| Published usable capacity range | 5–48 kWh | 9.6–57.6 kWh |
| Scored benchmark | 8 kWh | 9.6 kWh |
| Chemistry | LFP | LFP |
| Power | 8.0 kW | 5 kW |
| Round-trip | Not recorded | Not recorded |
| Cycle life | Not recorded | Not recorded |
| Evidence | ESA G20 | Smile G3 S5 / BAT-10.1P |
|---|---|---|
| Outcome | Available in Australia | Available in Australia |
| Checked | 2026-08-07 | 2026-08-29 |
| Certifications | The exact battery datasheet publishes CEC, RCM, IEC 62619, IEC 63056 and IEC 62040 certification. | 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; GoodWe Technologies Co., Ltd provides the 10-year product and performance warranty. GoodWe Australia Pty Ltd is named as the Australian importer and service contact. The GW8.3-BAT-D-G20 term is 29.20 MWh or 10 years at 70% retained usable energy, whichever occurs first. | 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 | Repair, replacement or equivalent hardware at GoodWe's option. | Repair or replacement at AlphaESS's option. |
| Labour and reinstallation | Service rebates are conditional and do not establish full labour cover. Removal and reinstallation are not an unconditional entitlement. | Installer travel and on-site labour are excluded. Removal and reinstallation are not promised. |
| Freight | Transport support is conditional and capped. | Replacement-parts freight is covered for an accepted claim. |
| Transfer and registration | No subsequent-owner transfer right was found in the governing terms. Authorised supply, installation and monitoring 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 | The exact single-phase platform publishes 220/230/240 V operation, whole-home 63 A bypass and sub-4 ms backup switching. | 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 | GW8.3-BAT-D-G20 remains current on the CER battery export through 31 December 2027, and GW8K-EHA-G20 remains current on the inverter export through 25 July 2028. GoodWe Technologies Co., Ltd. provides the warranty and GoodWe Australia Pty Ltd is the local importer. | 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 product warranty for GW5.1-BAT-D-G20, GW8.3-BAT-D-G20 and the named ESA G20 inverter models. WiFi/LAN, 4G and optional meter components receive two years. | Not in the structured register |
| Register: labour and service | conditional: The baseline warranty covers hardware material. GoodWe may offer an authorised on-site labour rebate in some areas or cases, subject to prior approval, return and confirmed defect, a two-month claim window and an undisclosed cap. | Not in the structured register |
| Register: transport and freight | conditional: GoodWe may cover normal ground transport in some areas up to an undisclosed amount. Excess cost, another transport method and some claimant-arranged returns remain with the claimant. | Not in the structured register |
| Register: registration | not stated: No end-user registration or continuous-connectivity condition is stated. Authorised-market supply, qualified installation, proof of purchase, serial identity and compliant operation are required. | Not in the structured register |
| Register: transferability | not stated: No express subsequent-owner transfer right was located. The remaining warranty transfers to an authorised replacement unit, which is not an ownership-transfer provision. | Not in the structured register |
| Register: explicit unknowns | 5 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 3Source 4Source 5Source 6 | 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.