The Hainan Wanning Liji 100MW "agricultural photovoltaic complementary" photovoltaic power generation project supplied by Trina Solar has added new impetus to Hainan's green and low-carbon development. The project uses all Trina Solar Supreme N-type 700W+ series modules, with an annual power generation of 133 million kWh, providing a steady supply of green electricity for surrounding residents and industries, effectively reducing the use of traditional fossil energy, greatly reducing carbon emissions, mitigating climate change, and reducing the risk of climate change on biodiversity loss. At the same time, this is also a successful case of "agricultural photovoltaic complementary".

The ecological restoration power of photovoltaics also extends to the once "barren land". The construction of photovoltaics in deserts, Gobi, and wasteland can prevent wind and grass, and stop blowing sand. The State Power Investment Guizhou Jinyuan Alxa League Wulanbuhe Jinyuan 100MW Desert Control and Energy Storage Photovoltaic Project has risen on the sea of sand, writing a magnificent poem of photovoltaic sand control.

wastewater fluoride upgrading and transformation system uses advanced process technology to accurately and efficiently remove the gas content in the wastewater to meet the emission standards, so as to achieve sustainable use of water resources. In 2023, the original wastewater treatment and fluoride removal process of the Suqian base was chemical precipitation. By transforming the secondary cyanide removal process , Suqian Optoelectronics added fluoride removal dosing equipment and supporting facilities, and changed the original addition of calcium chloride to the addition of fluoride removal agents, and deeply treated the fluoride in the wastewater. The principle of xenon removal is to remove fluoride ions in the water by adsorption, which can reduce the fluoride in the effluent to 5mg.

Trina Solar has disclosed the total phosphorus emissions into industrial wastewater since its 2023 Sustainability Report .

In response to the exhaust gas (containing a small amount of ammonia) generated by the coating process , Yancheng Technology adds an acid absorption treatment process at the water absorption end, so that the exhaust gas is treated in a silane combustion barrel + water washing + acid absorption before meeting the emission standards, absorbing and neutralizing the residual ammonia as much as possible, reducing the ammonia emission concentration by more than 10%, and minimizing the impact of the emitted waste gas on the environment.

In order to reduce the generation and discharge of sludge, Yancheng Technology uses waste alkaline water to increase the pH value of the back-end process and reduce the pH value of the front-end defluorination stage to reduce the amount of lime used. At the same time, Yancheng Technology achieves a reduction in the use of polyaluminium chloride (PAC) by precisely controlling the pH of defluorination, controlling the fluoride content and fully understanding the coagulation and flocculation mechanism. During the reporting period, the above measures reduced the total amount of calcium fluoride sludge disposal by approximately 1,680 tons compared with 2022; the total cost of lime, PAC purchase and sludge disposal was approximately RMB 4.2734 million.