Tongwei's 500 W TNC 2.0 FULLX: More Power, More Value for Australian Rooftops

MELBOURNE, Australia,

class="legendSpanClass">Oct. 29, 2026 /PRNewswire/ -- Tongwei Solar has introduced a new 500 W configuration of its TNC 2.0 FULLX G12R-48 for the Australian market. Delivering up to 25.02% efficiency in a compact 1,762 × 1,134 × 30 mm format, the module combines high power output, strong energy generation and installation flexibility. Zander Yuan, Director of Product & Technology at Tongwei Solar, explains how the new configuration brings greater value to Australian homeowners.

What makes the TNC 2.0 FULLX G12R-48 particularly suited to Australian rooftops?

Australian homes often have limited usable roof space, with different roof shapes, orientations and installation requirements. Getting more power from each module can make a real difference.

Our new 500 W configuration delivers 25.02% efficiency, providing 25 W more power than a conventional 475 W TOPCon reference module of a comparable format. This allows homeowners to install more capacity without increasing the number of panels.

For example, a 14-module rooftop system using TNC 2.0 FULLX reaches 7 kW, compared with 6.65 kW using 475 W modules. That's an additional 350 W from the same number of panels, making better use of available roof space.

Beyond higher power output, what financial benefits does the module offer Australian homeowners?

In Australia, higher system capacity can also mean greater upfront savings through the Small-scale Renewable Energy Scheme (SRES), which provides incentives for eligible rooftop solar installations.

For a typical 14-module system, the 500 W TNC configuration could provide approximately AUD 80–120 in additional upfront STC incentives compared with conventional 475 W TOPCon modules, based on Tongwei's 2026 calculations. This estimate assumes a stable STC price and standard zone eligibility. The exact benefit depends on the installation location, eligibility and certificate prices.

And the benefits don't stop at installation. Higher installed capacity, combined with strong energy-generation performance, can help homeowners get more electricity from their rooftops over time, improving the overall value of their solar investment.

How does TNC technology help deliver more energy under real-world conditions?

A module's rated power is only part of the story. What matters just as much is how efficiently it uses available sunlight throughout the day.

Our TNC technology features lower leakage current and enhanced low-light performance, helping maintain energy generation during early morning, late afternoon and other periods of weaker sunlight.

Field testing at Tongwei's Yancheng Test Base showed an average 3.3% higher per-watt energy yield compared with the tested copper-plated back-contact (BC) reference modules, with gains reaching up to 12.32% during low-light periods.

This means the technology can make more effective use of available sunlight, supporting higher energy generation even when conditions are less than ideal.

How does the module balance performance, appearance and long-term reliability?

Australian rooftops vary widely in size, orientation and design. Our compact 48-cell format offers flexibility for different residential installations, while strong low-light performance helps maintain energy generation under changing sunlight conditions.

Appearance matters too. TNC 2.0 FULLX G12R-48 is available in Full Black and Black Frame designs, giving homeowners options to suit different architectural styles. Its zero-cell-gap layout and concealed current-collection features create a clean, uniform appearance.

The module also features dual-glass construction and protective sealing designed to support long-term reliability in outdoor environments.

Ultimately, our goal is to help Australian homeowners get more from every rooftop, combining higher power output, strong energy performance and greater long-term value.