The China Photovoltaic Industry Association (CPIA) has approved 5 group standards led by LONGi. Set to take effect on March 30, 2025, these standards aim to fill gaps in product specifications and testing methodologies within the photovoltaic (PV) industry. These are:
Crystalline Silicon Photovoltaic Cells Part 3: Back-Contact Photovoltaic Cells (T/CPIA 0055.3-2025), which defines the technical requirements, testing methods, inspection rules, packaging, labeling, storage, and transportation of back-contact PV cells.
Tin Paste for Crystalline Silicon Photovoltaic Modules (T/CPIA 0110-2025) and Two-Component Thermosetting Insulating Adhesive for Photovoltaic Modules (T/CPIA 0111-2025), which standardize technical specifications and testing methods for Tin paste and insulating adhesive used in high-efficiency module production.
Acetic Acid Corrosion Resistance Test Method for Crystalline Silicon Photovoltaic Cells (T/CPIA 0104-2025), designed to address the industry challenge of acetic acid corrosion caused by aging encapsulation materials, ensuring module reliability over a lifespan of 25-30 years.
· Spectral Response Testing for Perovskite Single-Junction Photovoltaic Cells (T/CPIA 0109-2025), which adopts differential spectral technology to unify laboratory testing standards and eliminate data deviations caused by equipment differences, paving the way for perovskite technology development and commercialization.
LONGi recently launched LONGi eHome, its new home PV green power solution that encompasses rooftop solar PV, electrical systems, energy management software, and full-process services (see China Solar PV News Snippets).
Vertically integrated solar PV manufacturer Trinasolar has launched a solar PV solution tailored for large-scale desert, Gobi, and barren land projects, integrating its i-TOPCon Ultra modules with TrinaTracker systems. The company says the solution is designed to optimize the levelized cost of electricity (LCOE), ensure high reliability against sandstorms, and enhance operational efficiency. Trinasolar emphasizes that the solution lowers BOS costs and initial system investment through high-efficiency i-TOPCon Ultra modules, increased power per unit area, and higher string power. Additionally, enhanced low-irradiance performance, optimized tracking algorithms, and improved overall efficiency enable increased power generation during peak pricing periods, maximizing lifecycle energy yield and economic returns.
Trinasolar’s National Key Laboratory of Photovoltaic Science and Technology has developed a solar PV module with a power output of over 800 W (see China Solar PV News Snippets).
The 1GW (AC) Golmud Solar Plant, invested and built by China National Petroleum Corporation (CNPC), has completed trial operations and entered full commercial operation. Located in Qinghai Province, the Golmud project has a total installed capacity of 1.17 GW (DC) and utilizes desertified grassland to transform barren land into a green energy base, which supports both power generation and ecological restoration. Astronergy supplied 472 MW of ASTRO N5 modules for the project. The company says these modules offer high power output, high reliability, and excellent low-light performance, ensuring stable and efficient operation in harsh plateau environments characterized by intense ultraviolet radiation and significant temperature fluctuations.
Recently, Astronergy’s Haining and Yancheng production bases received the Solar Stewardship Initiative’s ESG certification (see China Solar PV News Snippets).
Perovskite manufacturer Mellow Energy has announced a breakthrough in large-area flexible perovskite module efficiency. Certified by the China Institute of Metrology, the company's flexible perovskite module achieved a full-area efficiency of 15.04% on a 1.56 m² module, with an aperture efficiency of 16.2%, exhibiting no hysteresis in forward and reverse sweeps and maintaining stable performance in a 300-second MPPT test. The company emphasized that the module is produced using an integrated forming process and claims it to be the largest certified high-efficiency flexible perovskite module globally.
Integrated PV manufacturer GCL Group, in collaboration with Peking University and NVIDIA, has launched an advanced PV power forecasting model based on the NVIDIA Earth-2 platform. The model establishes an industry data + research expertise + supercomputing power framework, leveraging GCL Group's extensive clean energy data, Peking University's cutting-edge AI and big data research, and NVIDIA Earth-2's climate and weather prediction capabilities. According to GCL Group, this AI-driven model is expected to enhance PV power forecasting accuracy by 3 to 5 percentage points compared to traditional time-series models, significantly improving the predictability of solar power generation.