In recent years, Poland has become one of Europe’s fastest-growing photovoltaic markets. According to data from the IEO Institute of Renewable Energy in Poland, distributed and industrial-commercial PV projects are continuing to expand amid the energy transition.

Against this market backdrop, beyond module efficiency, long-term operational stability is emerging as a key focus for developers and end-users across Eastern Europe. Responding to this demand, Tongwei showcased a range of high-efficiency modules represented by TNC 3.0 at the ENEX New Energy Expo. It explored with European partners the value of PV technologies across diverse application scenarios, and presented Tongwei’s solution: superior quality, higher power generation.

TNC 3.0: Reliability Engineered into Module Structure

At the TNC 3.0 product launch, Tongwei highlighted the design philosophy of its next-generation module technology. Rather than focusing solely on individual parameter improvements, TNC 3.0 prioritizes stable performance in real-world operating environments – a critical criterion for module selection in Poland and Central and Eastern Europe.

First is the optimized module structure. Through its four-way cell design, TNC 3.0 distributes current that would otherwise flow through a single path across multiple channels, reducing the current load on each cell and creating more uniform current distribution inside the module. Compared with conventional TOPCon half-cell modules, internal thermal loss is reduced by approximately 75%, enabling more sunlight to be converted into electricity.

For the Polish market, modules also face challenges during transportation and installation. Long-distance overland transport, rooftop installation, and wind and snow conditions can all affect module performance. The flexible buffer layer between cells in TNC 3.0 greatly lowers the risk of module cracking. Furthermore, in the event of microcracks, the four-way cell design limits the affected area to 50% of conventional designs, ensuring stable power output even in snowy and windy weather.

Partial shading is also unavoidable in actual operation. Falling leaves, bird droppings, or dust, common in Polish autumns, can temporarily shade parts of a module. TNC 3.0 adopts a bidirectional two-circuit design, allowing the module to continue operating when parts of the cells are shaded, delivering consistent power generation benefits for customers.

Lower losses, higher resistance to cracking, and better shading tolerance translate to: less heat generation, less energy waste, more controllable operation and maintenance costs, and more stable power revenue over the long term, better realizing the inclusive energy value of photovoltaic power.Calculations show that deploying Tongwei TNC 3.0 modules in Poland can generate an additional 2.43 million kWh of electricity per year on average, bringing in an extra 1.45 million RMB annually.(Conditions: 100 MW ground-mounted power plant in Warsaw, Poland; 320 kW string inverter with tracker; local feed-in tariff at 0.6 RMB/kWh.)

A Letter from the Arctic

At the booth, visitors were invited to write a postcard with a message for the Arctic. One card after another was posted on the display wall, sharing a common concern.

This attention is no coincidence. Arctic sea ice is declining at a rate of 13.1% per decade, shrinking habitats for Arctic wildlife – this is not a distant warning, but a reality unfolding right now.

Tongwei has chosen to respond with action. As the world’s first Chinese private enterprise to join the WWF Arctic Conservation Programme and a PV company with long-term in-depth cooperation on climate and energy initiatives, Tongwei addresses climate challenges through technological innovation and industrial practices, advancing clean energy development and ecological protection along the same path.

From module structure to real-world operation, from power station generation to ecological conservation, discussions at the event centered on one core question: how to achieve stable operation of clean energy over a longer lifecycle. In a growing PV market like Poland, high-efficiency, reliable modules have become a fundamental basis for project selection.

Next-generation module technology represented by TNC 3.0 is turning the concept of “superior quality, higher power generation” into real long-term operational value through higher efficiency and greater stability. As spring returns to Kielce with fresh sunlight, the dialogue on energy transition continues.