Compare like with like. Aligned scores, specifications and local evidence within one scoring class or tier.
Market context
Australia purchasing view
SAJ | H2-5K-S3 / H2-6K-S3 / H2-7K-S3 / H2-8K-S3 / H2-10K-S3 / H2-10K-S3-A; scored model H2-10K-S3
72/ 100
Strong evidence coverage · 100%
Evidence checked 2026-09-01
Available in Australia · checked 2026-08-13
Buyer evidence: Ready (100% direct coverage).
AlphaESS | SMILE-M8-S-INV, SMILE-M9-S-INV and SMILE-M10-S-INV; scored M10 at 9.999 kW local rating
68/ 100
Strong evidence coverage · 100%
Evidence checked 2026-09-01
Available in Australia · checked 2026-08-27
Buyer evidence: Ready (100% direct coverage).
marks the better value on rows where a higher number is better. Temperature coefficient counts as higher when it is closer to zero. Size measures such as rated power carry no marker, because a larger product is a different choice rather than a better one.
| Measure | H2 S3 | SMILE-M-S Inverter |
|---|---|---|
| Efficiency | ||
| Design & Flexibility | ||
| Thermal & Physical Resilience | ||
| Features & Integration | ||
| Safety & Compliance | ||
| Guarantee & Backbone | ||
| Energy Ecosystem |
marks the better value on rows where a higher number is better. Temperature coefficient counts as higher when it is closer to zero. Size measures such as rated power carry no marker, because a larger product is a different choice rather than a better one.
| Measure | H2 S3 | SMILE-M-S Inverter |
|---|---|---|
| Architecture | Hybrid inverter | Hybrid inverter |
| Published rated AC power range | 5–10 kW | 8–9.999 kW |
| Scored benchmark | 10 kW | 9.999 kW |
| Power | 10 kW | 9.999 kW |
| Type | Hybrid | Hybrid |
| Peak eff | 97.6 % (better value on this row) | 97.47 % |
| MPPTs | 3 | 4 (better value on this row) |
| Evidence | H2 S3 | SMILE-M-S Inverter |
|---|---|---|
| Outcome | Available in Australia | Available in Australia |
| Checked | 2026-08-13 | 2026-08-27 |
| Certifications | The reviewed Australian approval state lists exact H2-5K-S3, H2-6K-S3, H2-7K-S3, H2-8K-S3, H2-10K-S3 and H2-10K-S3-A model rows to AS/NZS 4777.2:2020. All six were approved 24 August 2023 and currently expire 22 November 2026., Approval Watch records an expiry-change event for each exact row in source version au-cec-inverter-2026-08-10-7ecc0443a0aa, retrieved 10 August 2026 and editorially approved 13 August 2026. The event changes approval validity only and does not change the product score. | The current CER snapshot lists M8, M9 and M10, approved 7 July 2026 and expiring 7 July 2029. |
| Warranty scope | Australia; the live governing warranty covers H2 Series for ten years from commissioning or ten years and six months from shipment, whichever occurs first, subject to its terms. | Australia; the exact SMILE-M-S inverter warranty provides ten years for the named M8, M9 and M10 family. |
| Warranty remedy | SAJ may repair, replace, provide a functionally equivalent product or refund the then-current market price of an equivalent product. | AlphaESS may repair, replace or otherwise settle an accepted claim under the governing terms. |
| Labour and reinstallation | Approved repair costs are covered, but an unconditional full-term third-party site-labour entitlement is not stated. An unconditional removal and reinstallation entitlement is not stated. | Reasonable accepted claim costs may be covered, subject to authorization and installer participation. Full removal and reinstallation reimbursement is not promised unconditionally. |
| Freight | An unconditional full-term transport entitlement is not stated. | Replacement-part freight is covered within the stated process; broader transport is not unconditional. |
| Transfer and registration | An express automatic subsequent-owner transfer right was not located in the reviewed warranty. A claim requires the model and serial number, invoice and warranty certificate, the warranty-card information, fault details and system information. | Coverage follows the product at the original installation site when the building changes ownership. Purchase, installation and claim evidence are required. |
| Grid/network approval evidence | Single-phase AS/NZS 4777.2:2020 approval is established for the six exact rows only. DNSP connection limits, export settings, backup circuit scope and site design remain installation-specific. | The exact model or family appears in the current Australian approved-inverter export. DNSP settings, export limits and site design 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 -A suffix is not collapsed into H2-10K-S3. SAJ's exact manual defines -A as Australia-only and publishes H2-10K-S3-A at 9.999 kW, while H2-10K-S3 is a separate 10.000 kW row and the scored benchmark. | This is the inverter layer only. Existing AlphaESS battery records remain separate, and no product-pair recommendation is published. |
| 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 | expiry changed: The approved-product source recorded a changed expiry. This is reviewed change history, not a live approval claim. | No exact-identity event in reviewed history |
| Sources | Source 1Source 2Source 3Source 4 | Source 1Source 2Source 3Source 4Source 5 |
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.
Confirm the proposed inverter phase, PV input design, battery pairing and export-control configuration against the final connection agreement. A suitable product can still require a different site design or control setting.
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 Inverter class, on the same rubric weighting. Scores are not comparable across classes or tiers. Full methodology.