Low-carbon Products

LONGi carried out carbon footprint calculations of products to precisely quantify carbon emissions throughout the product lifecycle. This year, we led upstream silicon material suppliers in participating in these calculations and obtained authorization to use the results. Meanwhile, by introducing third-party institutions to certify carbon footprint, LONGi rigorously inspected the carbon emissions throughout the product lifecycle. Given their outstanding eco-friendly features, several LONGi silicon wafer and module products received carbon footprint certifications from third-party institutions in 2023, of which the module products included 18 carbon footprint certifications from France, 4 carbon footprint certifications from South Korea, and 1 International Environmental Product Declaration (EPD).

• The entire range of silicon wafer products obtained the carbon footprint CRE4 certificate and PPE2 certificate
• Hi-MO 7 module products were granted the ECS carbon footprint certificate by Certisolis in France, marking that LONGi’s mainstream modules were all granted this ECS carbon footprint certificate
• Hi-MO 5 and Hi-MO 7 products obtained the carbon footprint PPE2 certificate from Certisolis
• Hi-MO 5 products obtained carbon footprint certification from South Korea, making LONGi the first Chinese module supplier completing carbon footprint certification of South Korea
• Hi-MO 7 modules have obtained EPD

Based on carbon footprint calculations, we have identified key emission reduction potentials in areas such as silicon materials and crystal pulling. In addition, we have implemented a series of emission reduction measures, focusing on building a green and low-carbon industrial chain covering the entire lifecycle of PV products, in order to create even lower-carbon PV products.

LONGi strengthened control over hazardous substances in the design and production process of PV modules, aiming to minimize environmental impact. Strictly adhering to EU’s Restriction of Hazardous Substances in Electrical and Electronic Equipment (RoHS) and the Regulation on the registration, evaluation, authorization and restriction of chemicals (REACH), we handled and eliminated harmful substances such as lead, mercury, cadmium, DEHP, BBP, DBP, and DIBP1 in glass, frames, back panels, film, labels, and all other parts. In addition, we accelerate the detection of per- and polyfluoroalkyl substances (PFAS) in products and plan to gradually recycle PFAS-containing components to meet the requirement of the global market in the future.

Carbon emission reduction solutions for the industry

By exploring the deep integration of “PV+” with multiple scenarios, LONGi providedinnovative solutions for global centralized and distributed customers.

Green Hydrogen

Sticking to hydrogen products as its strategy and core development direction, LONGi focuses on the R&D of alkaline electrolyzer technology and provides large-scale green hydrogen equipment and solutions worldwide. It is committed to creating premium products with high performance, high intelligence and low cost. In 2023, LONGi released two alkaline water electrolysis hydrogen production products. The LONGi ALK Hi1 series reduce the power consumption down to 4.0 kWh/Nm? for the first time. And the single electrolyzer production capacity of the LONGi ALK G series reaches 3,000 Nm?/h, which is industry-leading. By the end of the reporting period, the annual manufacturing capacity of LONGi Hydrogen has reached 2.5 GW.

LONGi’s “Green Power + Green Hydrogen” system solution now can undertake off-grid and grid-connected hydrogen production projects independently, integrating systems across multiple professional fields including new energy, power electronics, energy storage, chemical engineering, and automation control. The solutions provides full lifecycle services, including low-LCOH1 green power and green hydrogen project design, economic analysis, system steady-state/transient simulation verification, and chain-wide product supply. In 2023, LONGi participated in multiple national green hydrogen demonstration projects, holding 24%, the largest, of the market share domestically. Specifically, in the hydrogen-rich smelting project, LONGi’s ALK G series reduce carbon emissions by over 10%, demonstrate its advantage in “replacing carbon with hydrogen”, and save over 20% equipment investment and more than 30% civil work cost.

Case｜ Power industry: The centralized power plant in Uzbekistan connecting to the grid

In 2023, LONGi Hydrogen Energy provided core products and solutions for China’s first large-scale green hydrogen demonstration project. The project produces 20,000 tonnes of green hydrogen annually, replacing natural gas used for hydrogen production in oil refining, thus achieving low-carbon coupling development between modern oil processing and green hydrogen.