Every link in the photovoltaic industry carries the mission of the era: reducing carbon and boosting efficiency. As the 36th National Energy Conservation Publicity Week arrives, Tongwei closely follows the theme of "New Starting Point for Energy Conservation, Low Carbon Toward the Future," using full-chain innovation to set a benchmark for low-carbon development in the PV industry.

Source: National Development and Reform Commission

Today, let us decode this green industry chain. See how Tongwei uses the power of innovation to make every unit of green electricity lower in carbon, higher in efficiency, and greater in value.

Crystalline Silicon Efficiency: Tapping Carbon Reduction Potential through Technological Retrofits and Intelligent Control

Yongxiang Co., Ltd. adheres to the philosophy of green, low-carbon, and high-quality development, continuously investing in R&D of environmental protection, energy conservation, and resource recycling technologies. Through process innovation and industrial upgrading, it has built garden-style green factories, minimized production energy and resource consumption, and established a full-chain green development system of "Resources – Production – Recovery – Regeneration."

The company achieves 100% heat recovery from the cold hydrogenation system, significantly reducing production energy consumption and cutting annual operating costs by approximately 37 million yuan. This technology has now been deployed and promoted in new projects across multiple subsidiaries. The independently developed crystalline silicon MES system enables full-process visual and intelligent control of production, reducing power consumption to a record low of 36 kWh/kg·Si, greatly improving product quality, with N-type products accounting for over 90%. Meanwhile, low-power-consumption thermal field technology and intelligent control systems are applied in the crystal pulling process, controlling unit power consumption at 20 kWh/kg. The commissioning of smart dark-factory lines for silicon core and monocrystalline processing further boosts production efficiency, reduces labor burden, and supports carbon reduction and consumption cutback across the board.

Yongxiang Co., Ltd. Green Factory

Cells and Modules: Consolidating Energy-Saving Results through Intelligent Upgrades

Tongwei advances energy conservation and consumption reduction through dual paths of smart manufacturing and technological retrofitting, complemented by refined management that implements multiple energy-saving measures, delivering outstanding results in energy control, water resource utilization, and clean energy substitution.

Tongwei Solar builds a plant-wide energy control system based on smart manufacturing: it deploys a smart energy management system for plant-wide energy monitoring, power protection, and intelligent dispatch; builds high-efficiency cooling stations integrated with AI-powered intelligent allocation to dynamically optimize equipment operating modes and precisely regulate heating and cooling energy consumption; and installs smart lighting systems that combine multi-mode control — including latitude/longitude, timing, and sensing — to enable automated on/off switching and remote management of lighting equipment.

It continuously drives energy-saving and low-carbon technological retrofits: establishing power consumption monitoring models for high-energy-consumption processes and key equipment, and installing high-speed fans, waste heat recovery units, and material recycling devices. Leveraging refined management, it rapidly implements various energy-saving projects and steadily advances carbon reduction across the segment. In 2025, cell comprehensive power consumption dropped 13% year-on-year, with a cumulative electricity saving of 940 million kWh and water saving of 8.81 million tons.

Tongwei Solar High-Efficiency Cell Smart Manufacturing Production Line

Tongwei Solar Technology's energy-saving achievements are notable (taking the Yancheng base as an example): in 2025, module comprehensive power consumption dropped to 13,100 kWh/MW, a 7% year-on-year decrease from 14,100 kWh/MW in 2024; cumulative annual water saving reached 85,699 tons, with production water recycling rate hitting 99%. The base's energy mix continues to optimize: 99% of production energy is electricity, of which renewable energy accounts for 29% — a 409% year-on-year increase — significantly elevating green energy utilization levels.

Tongwei High-Efficiency Module Smart Manufacturing Workshop

System Application: Energy Saving and Carbon Reduction Begins with the Efficient Use of Every Unit of Green Electricity

Tongwei New Energy has deepened its distinctive "fish-solar integration" model, building 56 PV power stations across more than 20 provinces and cities nationwide, with a cumulative grid-connected installed capacity exceeding 5.1 GW. Relying on smart O&M systems, it conducts intelligent inspections and precise dispatch to ensure stable output and efficient utilization of clean electricity. It also integrates resources to participate in green power trading, converting scattered green electricity into dispatchable, tradable premium energy assets, providing traceable and highly stable green power supply to major enterprises.

In 2025, Tongwei New Energy supplied a cumulative 4.916 billion kWh of green electricity, achieving 3.2275 million tons of carbon emission reduction. Through innovative models and professional O&M, it drives widespread clean energy adoption and helps industries across the board complete their green transition.

Tongwei Longpao "Fish-Solar Integration" Base

Technological Innovation: Amplifying Low-Carbon Value through Efficiency Breakthroughs

Tongwei continuously iterates on core cell and module technologies, steadily improving photoelectric conversion efficiency. Higher power generation efficiency reduces carbon emissions per unit of electricity, making PV products the core vehicle for carbon reduction and efficiency gains.

Dual-Drive, Reaching the Pinnacle of TOPCon "Performance"

In March 2025, Tongwei's TNC-G12R module achieved a front-side power of 682.8 W (efficiency 25.28%), and the TNC-G12 module reached 778.5 W (efficiency 25.06%), demonstrating Tongwei's technology leadership in the TOPCon field. Tongwei's "High-Efficiency High-Bifaciality TOPCon Cell & Module" won the SNEC "Terawatt-Level Award," further confirming its technological depth and manufacturing strength, and providing the global PV market with efficient, stable, and cost-effective flagship products.

Tandem Revolution, Opening a New Future of Performance

In September 2025, the industry's first fully automated megawatt-level perovskite-crystalline silicon tandem cell pilot line was fully connected. As of March 2026, tandem cell R&D efficiency has broken through to 34.94%, signaling further declines in PV levelized cost of electricity — making "Low Carbon Toward the Future" no longer a distant goal, but a tangible economic reality.

First Cell Off the Line from Tongwei's Perovskite-Crystalline Silicon Tandem Pilot Line

National Platform, Solidifying the Foundation for Technology Commercialization

In December 2025, Tongwei's "Advanced PV Device Pilot Platform" was successfully selected as one of the first batch of national manufacturing pilot platforms — the only one in the PV industry and the first in Sichuan to receive this qualification. Standing out in a rigorous selection with an acceptance rate of just 8.5‰, this underscores the company's strong capability in translating scientific and technological achievements. Tongwei leverages its national-level platform positioning to accelerate the industrialization of laboratory technologies and set industry benchmarks for green transformation.

Tongwei Global Innovation R&D Center Workshop

Breaking Records, Setting a New Industry Benchmark for Energy Saving

In June 2026, Tongwei's THC-G12 heterojunction copper-interconnected module achieved a maximum output power of 802.43 W — its twelfth record-breaking result for HJT modules — with a conversion efficiency of 25.83%. Under identical lighting conditions, this product delivers more clean electricity at lower energy consumption, establishing a new standard for industry energy-saving development.

Tongwei THC-G12 Heterojunction Copper-Interconnected Module Breaks Industry Record Again

ESG Deep Dive: Full-Chain Synergy to Fortify the Foundation of Low-Carbon Development

Tongwei has comprehensively deployed green industries across its upstream and downstream segments, relying on intelligent control and process upgrades to tap the full industrial chain's energy-saving potential and continuously reduce overall energy consumption and carbon emissions. It also works hand in hand with partners to co-build and share green development outcomes.

According to Tongwei Co., Ltd.'s 2025 ESG Report: in 2025, the company's environmental protection investment reached 1.118 billion yuan, with 170 energy-saving and consumption-reduction projects implemented; total Scope 1, 2, and 3 carbon emissions decreased 9.33% year-on-year; 56 product carbon footprint certifications and EPDs were completed; renewable energy electricity accounted for 61%, and recycled water usage exceeded 98%; one of its factories was recognized as the world's first Lighthouse Factory in the global PV cell industry.

A new starting point for energy conservation is both a responsibility entrusted by the era and a new development opportunity; low carbon toward the future is both the direction of industrial progress and down-to-earth action. Looking ahead, Tongwei will continue to center on full-chain carbon reduction, powered by technological innovation, actively responding to the call for low-carbon development, and dedicating its full strength to contributing to global energy transition.