TrinaSolar will offer a new generation of Vertex S+ high performance solar panels for installation on Australian residential rooftops – the NEG9RH.28 double glazed product line.
What are the specifications of the Vertex S+ NEG9RH.28?
- Capacities: 440W – 475W1.
- Cells: 96 N-type monocrystalline i-TOPCon cells.
- Black anodized aluminum alloy frame.
- Up to 23.8% module efficiency.
- Temperature coefficient of Pmax: -0.29%/°C.
- Maximum system voltage: 1500V DC.
- Front/Back Glass: 1.6mm
- Dimensions: 1762 × 1134 × 30mm.
- Weight: 21kg.
- Product guarantee: 25 years.
- Performance guarantee: 30 years (maximum 1% deterioration in the first year, 0.4% each year thereafter).
A complete data sheet for the NEG9RH.28 can be found here.
Trina will officially launch the NEG9RH.28 this week at Australia’s largest clean energy event, All Energy. Commenting on the new panels, TrinaSolar Australia General Manager Edison Zhou said:
“Australia is a priority market for Trina, so we are proud to launch a model specifically designed for Australian installations. With its low voltage design and Trina’s signature black finish, this module offers the flexibility, efficiency and elegant style that local customers have been asking for.”
As for availability, the NEG9RH.28 series was approved by the Clean Energy Council on October 15, 2025, but I have not yet seen them on wholesaler websites for pre-order. In terms of price and based on previous Vertex S+ panels, they should be well within the budget range. For example, the older 440W Vertex S+ NEG9.28 is listed in the SolarQuotes solar panel comparison chart with an estimated retail price of $120.
Trina Vertex S+ history in Australia
Trina Solar launched the Vertex S+ for residential rooftops here in Australia in March 2022. The Vertex S+ was a successor to the Vertex S, which was available locally in April 2021. Differences between the two include that the Vertex S has a traditional back film and P-type cells, while the Vertex S+ has dual glass and N-type cells.
We have had 10 kW Vertex S+ modules (NEG9.28) on our roof since September 2022 and I am satisfied with their performance. The money saved by buying a low-cost, quality brand like Trina went into a not-so-cheap 8.2 kW Fronius Primo inverter. We chose a solar inverter because it is the real workhorse of a system and the component most likely to fail first.
At the time, I believe the highest capacity Vertex S+ module available in Australia was 420 watts. As a result, Trina has managed to continually and significantly expand the performance limits for the Vertex S+ residential roof product family without increasing the physical size.
Comparing the specifications, NEG9RH.28 panels have the same dimensions and weight as the NEG9.282, but the conversion efficiency is higher. This latest generation has a slightly better temperature coefficient than what’s on our roof (-0.29%/°C vs -0.30%/°C), so there should be a small increase in performance in hot weather with the new panels.
TrinaSolar was founded in 1997 in Changzhou, Jiangsu Province, China, where its global headquarters are now located. Closer to home, Trina has an office in Sydney. The company began serving the Australian market in 2009 and reviews of Trina solar panels here on SolarQuotes from Australian customers have been largely positive since then.
The launch of the Vertex S+ NEG9RH.28 follows a range of high-performance rooftop solar modules introduced for Australia in 2025 by other manufacturers, including modules from TW Solar (470W), Risen Energy (475W), Aiko (480W) and Winaico (475W). Like Trina, Risen and Aiko tend to be aimed at the budget end of the market, while Winaico is more in the middle when it comes to solar panel pricing.
Learn more about purchasing the right solar panels for your home.
Footnotes
- The datasheet states capacities of 440W – 475W, but CEC only lists 450W – 475W as approved at the time of writing. ↩
- In 2024, NEG9R.28 Vertex S+ panels with peak powers of 425 W to 460 W also became available here; same dimensions (the similarities in model names can be confusing). ↩
Comments are closed.