Compare like with like. Aligned scores, specifications and local evidence within one scoring class or tier.
Market context
Australia purchasing view
SolaX | X3-HYB-4.0-P / X3-HYB-5.0-P / X3-HYB-6.0-P / X3-HYB-8.0-P / X3-HYB-10.0-P / X3-HYB-12.0-P / X3-HYB-15.0-P; scored model X3-HYB-15.0-P
73/ 100
Strong evidence coverage · 100%
Evidence checked 2026-08-16
Available in Australia · checked 2026-10-06
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
66/ 100
Strong evidence coverage · 100%
Evidence checked 2026-09-01
Available in Australia · checked 2026-08-27
Buyer evidence: Ready (100% direct coverage).
Full scorecardmarks 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 | X3-HYB G4 Pro | 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 | X3-HYB G4 Pro | SMILE-M-S Inverter |
|---|---|---|
| Architecture | Hybrid inverter | Hybrid inverter |
| Published rated AC power range | 4–15 kW | 8–9.999 kW |
| Scored benchmark | 14.999 kW | 9.999 kW |
| Power | 14.999 kW | 9.999 kW |
| Type | Hybrid | Hybrid |
| Peak eff | 98.0 % (better value on this row) | 97.47 % |
| MPPTs | 3 | 4 (better value on this row) |
| Evidence | X3-HYB G4 Pro | SMILE-M-S Inverter |
|---|---|---|
| Outcome | Available in Australia | Available in Australia |
| Checked | 2026-10-06 | 2026-08-27 |
| Certifications | The Australian approved-inverter list (data as at 30 September 2026) names all seven X3-HYB-P models from 4 kW to 15 kW in the X3-HYB G4 PRO series under the AS4777-2 2020 designation, each approved 1 May 2026 and expiring 1 May 2029., The exact Australian datasheet lists IEC 62109-1/-2, AS/NZS 4777, VDE-AR-N 4105, G98/G99, EN 50549 and CEI 0-21. | The current CER snapshot lists M8, M9 and M10, approved 7 July 2026 and expiring 7 July 2029. |
| Warranty scope | SolaX's Australian Version 1.6 warranty explicitly names X3-HYB-4.0/5.0/6.0/8.0/10.0/12.0/15.0-P for 10 years, subject to authorised supply, installation, activation and registration. The remedy is at SolaX's option and normal ground transport is capped at AUD 200 per case. | Australia; the exact SMILE-M-S inverter warranty provides ten years for the named M8, M9 and M10 family. |
| Warranty remedy | SolaX chooses software/configuration correction, repair on or off site, or a new or equivalent repaired, refurbished or upgraded replacement. Replacement requires prior consent and confirmed RMA with purchase or commissioning evidence. Return clauses state six weeks after replacement and 30 days respectively; confirm the applicable deadline rather than assume the longer period. Invalid or uncovered claims can incur recovery of labour, travel, delivery and replacement costs. Separate Australian Consumer Law rights remain. | AlphaESS may repair, replace or otherwise settle an accepted claim under the governing terms. |
| Labour and reinstallation | The policy permits on-site repair but does not promise an unlimited owner entitlement to third-party site labour. Full removal and reinstallation cost is not stated as an unconditional entitlement. | Reasonable accepted claim costs may be covered, subject to authorization and installer participation. Full removal and reinstallation reimbursement is not promised unconditionally. |
| Freight | Normal ground transport is covered in specified Australian areas up to AUD 200 per case; excess cost remains with the claimant. | Replacement-part freight is covered within the stated process; broader transport is not unconditional. |
| Transfer and registration | No automatic subsequent-owner transfer right was found in the governing terms. Authorised supply, installation, activation and SolaXCloud warranty registration are required; register promptly after commissioning with purchase evidence, serial and contact details. Standard cover is ten years from installation, capped at 129 months from manufacture; the stated NSW PDRS exception requires its own eligibility confirmation. Claims need product, installation and fault evidence. The procedure says one month after failure while exclusions say four weeks; report promptly and confirm the applicable deadline. | 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 | Three-phase 220/380 V or 230/400 V hybrid family with exact Australian approved-list entries. The approved list shows the 5, 10 and 15 kW models at 5, 10 and 15 kW. The Australian datasheets separately give AS 4777 output ratings of 4,999, 9,999 and 14,999 for those three models, with the unit printed as W or VA depending on the datasheet version and row. DNSP acceptance remains site-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 manual names multiple SolaX high-voltage battery systems, but inverter compatibility alone does not establish current Australian battery approval, rebate eligibility or local availability for every configuration. Those checks remain outside this inverter record. | This is the inverter layer only. Existing AlphaESS battery records remain separate, and no product-pair recommendation is published. The exact M8/M9/M10 inverter manual specifies Smart Fan Cooling, with noise below 45 dB(A) at 1 m. These models are not documented as fanless; natural cooling in the same manual applies to the separate lower-power M5/M3.6/M5-B models. |
| Register: parts term | stated: Ten-year product warranty for the exact X3-HYB-P family. | Not in the structured register |
| Register: labour and service | conditional: SolaX may repair on site, but the instrument does not promise unlimited owner-selected third-party labour. Unauthorised costs may be charged to the claimant. | Not in the structured register |
| Register: transport and freight | conditional: Normal ground transport is covered in specified Australian areas up to AUD 200 per case; excess and alternative transport remain with the claimant. | Not in the structured register |
| Register: registration | conditional: Authorised supply, installation, activation and SolaXCloud warranty registration are required. Claims require product, installation and fault evidence within the stated claim window. | Not in the structured register |
| Register: transferability | not stated: No automatic subsequent-owner transfer right is stated. | 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 3Source 4Source 5Source 6Source 7Source 8 | 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.