Compare like with like. Aligned scores, specifications and local evidence within one scoring class or tier.
Market context
Australia purchasing view
WINAICO | WST-450NGX-D3
71/ 100
Strong evidence coverage · 100%
Evidence checked 2026-08-06
Available in Australia · checked 2026-08-03
Buyer evidence: Ready (100% direct coverage).
Tindo Solar | Walara 440W G4P
62/ 100
Strong evidence coverage · 100%
Evidence checked 2026-08-02
Available in Australia · checked 2026-08-03
Buyer evidence: Ready (100% direct coverage).
| Measure | NGX-D3 | Walara G4P |
|---|---|---|
| Architecture & Design | ||
| Efficiency & Yield | ||
| Durability (verified) | ||
| Performance & Degradation | ||
| Guarantee & Backbone | ||
| Sustainability |
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 | NGX-D3 | Walara G4P |
|---|---|---|
| Architecture | N-type TOPCon module | N-type TOPCon module |
| Published rated power range | 430–450 W | 440 W |
| Scored benchmark | 450 W | Not stated |
| Power | 450 W | 440 W |
| Efficiency | 22.52 % | 22.6 % (better value on this row) |
| Cell | N-type TOPCon | N-type TOPCon |
| Temp coeff | -0.3 %/°C | -0.3 %/°C |
| Evidence | NGX-D3 | Walara G4P |
|---|---|---|
| Outcome | Available in Australia | Available in Australia |
| Checked | 2026-08-03 | 2026-08-03 |
| Certifications | IEC 61215:2021, IEC 61730:2023, BABT 8529 approved product | CEC certified (manufacturer statement) |
| Warranty scope | Australia; WINAICO's current Australian warranty covers the exact 108-cell WST-XXXNGX-DX family for 30 years. It provides repair, replacement or refund remedies, a capped installer labour payment and reasonable local transport for accepted claims; removal and reinstallation remain excluded. It transfers only while the modules remain at their original site. | Australia; Tindo's Walara 440 G4P materials state a 25-year product and performance warranty. Its Premium Warranty Offer, for qualifying original purchasers, says the underlying consumer warranty includes parts, transport, removal and reinstallation at no cost and adds a single AUD 1,000 payment after an approved replacement claim. The Premium Offer requires registration within 60 days and is separate from the base warranty. |
| Warranty remedy | At WINAICO's reasonable discretion: repair or replace the defective product or part, or refund the current market price of a comparable product. A performance claim may receive repair, replacement, additional modules or compensation for excess power loss. | The Premium Warranty Offer does not state the base repair or replacement remedy. When a valid base-warranty claim requires replacement, it pays one AUD 1,000 amount per installation site after approval and registration verification. |
| Labour and reinstallation | For an accepted claim, WINAICO may pay the installer up to AUD 120 for installing one replacement module and AUD 60 for each additional module in the same claim. This is a capped installation contribution, not full labour cover. Installation and removal of defective modules, and reinstallation of repaired, replacement or additional modules, are not covered unless WINAICO separately agrees. | The offer says the underlying consumer warranty includes removal and reinstallation at no cost, but does not state a separate labour allowance or a labour-cost cap. The Premium Warranty Offer says the underlying consumer warranty includes removal and reinstallation at no cost. The separate AUD 1,000 payment is available only for a valid claim requiring replacement. |
| Freight | For accepted claims, WINAICO is responsible for reasonable typical-local transport of defective, repaired, replacement or additional modules to and from the claimant. Other reconstitution costs remain at WINAICO's discretion. | The Premium Warranty Offer says the underlying consumer warranty includes transport at no cost. The offer's separate payment is a single AUD 1,000 per installation site, not a stated transport reimbursement schedule. |
| Transfer and registration | The warranty extends to a person who receives title only while the modules remain installed at the site where first installed. It does not cover a module removed from that site or reinstalled elsewhere. No product-registration condition is stated. A claim needs proof of purchase and a valid module serial number, and notice must be given within 14 days of the alleged defect. | Not covered for the Premium Warranty Offer: it is only for the original purchaser and does not transfer with property ownership. The offer says the base warranty transfers, but its transfer conditions are not stated in the reviewed offer. The Premium Warranty Offer requires system registration within 60 days of installation, original purchase and installation proof, and purchase on or after 1 November 2025. The formal offer does not state that base-warranty coverage itself is lost if this Premium registration is not completed. |
| Grid compatibility | Not applicable or not established | Not applicable or not established |
| 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 | WINAICO Australia publishes the exact WST-450NGX-D3 product page and Australian CEC datasheet. | The Walara 440 W G4P is Tindo's current Australian-made module. |
| Sources | Source 1Source 2Source 3Source 4 | Source 1Source 2Source 3 |
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.
Match the exact module model number, power class and label to the final design. Then check the proposed array size, roof layout, inverter limit and any export control as one system.
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 Specialist & Local class, on the same rubric weighting. Scores are not comparable across classes or tiers. Full methodology.