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
74/ 100
Strong evidence coverage · 100%
Evidence checked 2026-08-06
Available in Australia · checked 2026-08-07
Buyer evidence: Ready (100% direct coverage).
GoodWe | GW6000-ET-20 / GW8000-ET-20 / GW9900-ET-20 / GW12K-ET-20 / GW15K-ET-20
80/ 100
Strong evidence coverage · 100%
Evidence checked 2026-08-06
Available in Australia · checked 2026-08-02
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 | X3-HYB G4 Pro | ET G2 |
|---|---|---|
| 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 | ET G2 |
|---|---|---|
| Architecture | Hybrid inverter | Hybrid inverter |
| Published rated AC power range | 4–15 kW | 6–15 kW |
| Scored benchmark | 14.999 kW | 15 kW |
| Power | 14.999 kW | 15.0 kW |
| Type | Hybrid | Hybrid |
| Peak eff | 98.0 % | 98.2 % (better value on this row) |
| MPPTs | 3 | 3 |
| Evidence | X3-HYB G4 Pro | ET G2 |
|---|---|---|
| Outcome | Available in Australia | Available in Australia |
| Checked | 2026-08-07 | 2026-08-02 |
| Certifications | The current Australian approved-inverter list names all seven X3-HYB-P models from 4 kW to 15 kW under certificate AZ 69028775, 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 Australian CEC approved-inverter export dated 22 July 2026 lists exact GW6000-ET-20, GW8000-ET-20, GW9900-ET-20, GW12K-ET-20 and GW15K-ET-20 models to AS/NZS 4777.2:2020 through 29 October 2027., The exact system manual lists IEC 62109-1/-2 and multiple national grid codes. |
| 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 and New Zealand; GoodWe's current Rev 5.8 limited warranty explicitly places ET G2 under 10 years of cover for eligible products. |
| Warranty remedy | Software correction, repair on or off site, or an equivalent replacement at SolaX's option. | Configuration change, repair or replacement at GoodWe's discretion. |
| 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. | GoodWe may provide authorised on-site service or a conditional service rebate. On-site labour support is conditional and requires prior authorisation. |
| Freight | Normal ground transport is covered in specified Australian areas up to AUD 200 per case; excess cost remains with the claimant. | Normal ground transport is covered up to GoodWe's stated case limit. |
| 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 by the governing terms. | No express subsequent-owner transfer right was found in the governing terms. The standard ET G2 term is listed as 10 years; claim and monitoring conditions in the governing terms still apply. |
| Grid compatibility | Three-phase 220/380 V or 230/400 V hybrid family with exact Australian approved-list entries. The 5, 10 and 15 kW models are listed at 4,999 W, 9,999 W and 14,999 W respectively for AS/NZS 4777. DNSP acceptance remains site-specific. | Three-phase 380/400 V hybrid family with exact-model CEC listings. DNSP acceptance, export settings, battery pairing and backup 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. | The 15 kW GW15K-ET-20 is the scored series benchmark. CEC listings are dynamic and should be checked before installation. |
| Sources | Source 1Source 2Source 3Source 4Source 5Source 6Source 7 | 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.