Compare like with like. Aligned scores, specifications and local evidence within one scoring class or tier.
Market context
Australia purchasing view
Sungrow | SG5.0RT / SG6.0RT / SG7.0RT / SG8.0RT / SG10RT / SG12RT (three-phase string); scored model SG12RT
71/ 100
Strong evidence coverage · 100%
Evidence checked 2026-08-31
Available in Australia · checked 2026-08-02
Buyer evidence: Ready (100% direct coverage).
FoxESS | H3-Pro-15.0 (15 kW model in the H3-Pro 15-30 kW range)
75/ 100
Strong evidence coverage · 100%
Evidence checked 2026-08-30
Available in Australia · checked 2026-10-07
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 | SG RT | H3-Pro |
|---|---|---|
| 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 | SG RT | H3-Pro |
|---|---|---|
| Architecture | Solar-only string inverter | Hybrid inverter |
| Published maximum AC output range | 5–12 kW | Not stated |
| Scored benchmark | 12 kW | 15 kW |
| Power | 12.0 kW | 15.0 kW |
| Type | String | Hybrid |
| Peak eff | 98.5 % (better value on this row) | 97.2 % |
| MPPTs | 2 | 3 (better value on this row) |
| Published rated AC power range | Not stated | 15–30 kW |
| Evidence | SG RT | H3-Pro |
|---|---|---|
| Outcome | Available in Australia | Available in Australia |
| Checked | 2026-08-02 | 2026-10-07 |
| Certifications | The exact series datasheet publishes IEC 62109 and AS/NZS 4777.2 compliance., The Clean Energy Regulator approved-inverter export of 24 September 2026 has series RT rows for SG5.0RT, SG7.0RT, SG8.0RT, SG10RT, SG15RT and SG20RT and no SG12RT row; a CER listing for the scored SG12RT bin is not publicly established. The datasheet linked from Sungrow's Australian SG5.0/8.0/10RT product page (page 2, Version 16) covers SG5.0RT, SG7.0RT, SG8.0RT and SG10RT only. | The CER approved inverter list, last modified 2 October 2026 and read on 7 October 2026, lists exact H3-Pro-15.0 (AS4777-2 2020) at 15 kW, approved 21 January 2026 and expiring 21 January 2029., The current Australian datasheet and manual identify H3-Pro-15.0 as a three-phase storage inverter. |
| Warranty scope | Australia; Sungrow's current warranty page and its linked terms (file name V4.32_202510; document footer V4.31_202510) list SG5.0RT through SG12RT under the 10-year standard inverter warranty, which runs ten years from installation and no more than eleven years from manufacture, whichever comes first. | The Australian and New Zealand warranty policy, Version 4.0 dated 1 April 2026, expressly names H3-Pro-15.0. The standard term is 120 months from installation, capped at 132 months after manufacture. Conditional service-rebate and transport provisions do not establish unrestricted labour or freight cover. |
| Warranty remedy | Repair or replacement for an approved claim. | FoxESS may repair onsite or at a service centre, or replace with the closest current product. |
| Labour and reinstallation | A standard service rebate may be payable to the installer for an approved replacement. The rebate table effective 1 July 2026 to 30 June 2027 lists $180 AUD excluding GST for three-phase inverters from 5 kW to 10 kW and from 15 kW to 25 kW and names no band for 12 kW, so the SG12RT rebate amount is not publicly established. Approved service labour is supported through the published rebate. | An installer service rebate may be approved, but its amount and eligible work are not stated; travel, onsite installation, modification and maintenance are excluded. Unrestricted removal and reinstallation cover is not stated. |
| Freight | Sungrow covers outbound and inbound standard ground transportation up to a total of $200; excess costs and other transport modes are borne by the claimant. | Eligible road transport to one specified address may be provided; express and onward shipping are excluded. |
| Transfer and registration | Standard and Extended Warranties are transferable, but original purchase proof is required. The warranty terms provide for parts-only or standard extension of covered inverters. The current Australian extension price list (2025 v2.2) names SG5.0RT, SG8.0RT, SG10RT, SG15RT and SG20RT and does not name SG12RT, so an SG12RT extension price is not publicly established. The extension page states purchase must be within 1 year after installation, while the warranty terms state an extension may be purchased up to the end of the standard warranty period. | No automatic subsequent-owner transfer right is stated. Version 4.0 prints no separate registration section. The FoxPlus clause applies if the product is registered on the FoxESS website within 36 months of manufacture, and cross-refers to section 8, which in this version is the claim process. No registration condition is stated for the 120-month standard term. |
| Grid/network approval evidence | Three-phase 230/400 V string-inverter family with Australian grid-code compliance. | Three-phase Australian identity. CER product listing does not establish DNSP, site, export-limit, installation or commissioning approval. |
| 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 | Sungrow publishes the exact non-P2 SG5-12RT series globally and lists SG12RT in its Australian warranty terms. The exact SG12RT-inclusive manual and current family page document firmware updating, and the global vulnerability-disclosure policy (Version 1.0, last updated 20 September 2026) explicitly covers all Sungrow products. This is disclosure evidence; signed-update assurance, a fixed support lifetime, installed firmware and device-specific remediation status remain unestablished. Sungrow's Australian product pages cover SG5.0/8.0/10RT (rated output 5 to 9.999 kW) and SG15/20RT, and none names SG12RT, so Australian sale of the 12 kW bin is not publicly established by a product or approval source. SG12RT-P2 communication hardware and unrelated cloud advisories are not transferred to this record. | FoxESS Australia publishes the exact product family and support materials. External switching and battery requirements remain outside this independent inverter record. |
| Register: parts term | Not in the structured register | stated: The exact H3-Pro family receives 120 months from installation, no later than 132 months after manufacture, whichever occurs first. |
| Register: labour and service | Not in the structured register | conditional: FoxESS may repair onsite or at a service centre, replace the product, and approve an installer service rebate. The rebate amount and eligible work are not stated, while travel, onsite installation, modification and maintenance are excluded. |
| Register: transport and freight | Not in the structured register | conditional: Eligible road transport to one specified address may be provided. Express freight and onward shipping are excluded. |
| Register: registration | Not in the structured register | conditional: Registration is recommended for the standard term and required for FoxPlus. The policy's FoxPlus wording also refers to a 72-month standard period, which conflicts with the exact 120-month H3-Pro table. |
| Register: transferability | Not in the structured register | not stated: The policy defines purchaser, installer and end-user roles but does not state an automatic subsequent-owner transfer right. |
| Register: explicit unknowns | Not in the structured register | 4 retained |
| 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 5Source 6Source 7 |
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 Value & Volume class, on the same rubric weighting. Scores are not comparable across classes or tiers. Full methodology.