Japan has limited rooftop space, compact land, and skyrocketing electricity prices. The market demand for photovoltaic power generation has never been just "able to generate electricity"—it requires maximizing power generation volume and stability within limited space. In March, Smart Energy Week 2026 opened grandly in Tokyo. To better respond to this market demand, Tongwei TNC 3.0 arrived as scheduled with its "high quality, more power generation" value proposition. It aims to answer a more practical question: After a module is installed, what more can it do for users?

Themed Sharing

Under the same irradiance

TNC 3.0 simply generates more electricity

With the same sunlight, TNC 3.0 achieves significantly higher power generation. Its conversion efficiency exceeds 24.8% with a maximum power output of 670W. Compared with conventional modules, the cumulative additional revenue from using TNC 3.0 over 30 years reaches approximately 1.2 million yuan*, where every watt of improvement is amplified in revenue. With TNC 3.0, fewer supporting devices are needed for the same installed capacity, reducing system BOS cost by 5.48 cents per watt*. Every cent saved directly becomes profit.

*Calculated based on a 1MW color steel tile rooftop project in Tokyo, Japan. Average industrial and commercial electricity price in Japan is 11.5 yen (0.5089 yuan/kWh).

Module reliability is not only reflected in power rating—it depends on stable output over a longer period. TNC 3.0 adopts a quarter-cut design, which makes current distribution within the module more uniform. Compared with conventional half-cut TOPCon modules, internal heat loss can be reduced by approximately 75%, meaning less loss and more power generation.

At the Exhibition Site

To ensure power generation stability over a longer operation cycle, the annual degradation rate of TNC 3.0 is as low as ≤0.35%. As service life increases, this difference gradually accumulates, forming a more significant power generation advantage over the 30-year lifecycle. For users, this is not just a phased performance improvement—it is not just a little extra power in one year, but consistent incremental gain over decades that turns into tangible power generation benefits.

A Letter from the Arctic

Let Light Illuminate Farther Away

Arctic sea ice is decreasing at a rate of approximately 13.1% per decade, and ecological boundaries are constantly being redrawn. As the first Chinese private enterprise to join the World Wide Fund for Nature (WWF) Arctic conservation project and a long-term photovoltaic enterprise deeply engaged in climate and energy cooperation, Tongwei hopes to make the significance of clean energy visible to a wider audience—it not only brings more convenient electricity, but also helps protect the global ecosystem we depend on for survival.

Joint Attention to Arctic Conservation

On one side of the exhibition booth is a postcard wall that is gradually being filled. Visitors write down their expectations and wishes for Arctic conservation, leaving them for the distant polar region. Here, imaginations about light are recorded, and silently connect with the real world far away.

Group Photo

In Tokyo, the high-density urban environment places higher demands on photovoltaic systems, and the optimal solution for power generation efficiency is continuously iterated in such scenarios. For Tongwei, "high quality, more power generation" means minimizing invisible losses and uncertainty in real-world environments, allowing systems to continuously deliver value over longer cycles.