Solar module manufacturer Astronergy has received a TÜV Rheinland IEC TR 63279 sequence and combined accelerated stress test certificate for its n-type TOPCon modules. The company claims it to be the world’s first certification of its kind for n-TOPCon modules.
IEC TR 63279 focuses on the long-term reliability of PV modules in complex, harsh operating environments. According to the test results, Astronergy’s n-TOPCon modules demonstrated strong performance across 3 key areas: environmental durability limits, dynamic mechanical loading, and complex electrical stability. The modules were found to maintain a high level of overall robustness even under compounded stress conditions, such as damp heat exposure following UV ageing and defect propagation under extreme climates.
The CHINT Group company recently launched the ASTRO N7 Pro TOPCon module series, rated at up to 670 W of power and module efficiency of 24.8% (see Astronergy Launches ASTRO N7 Pro Based On Updated TOPCon Platform).
Energy storage solution provider JDEnergy has announced that it has delivered its first GWh-scale utility-level project, with the 500 MW/2,000 MWh Dengkou energy storage project in Inner Mongolia now connected to the grid. The project adopts JDEnergy’s self-developed Galaxy-1 string-based prefabricated cabin system, deploying 400 Galaxy-1-4G units alongside 100 eLink-HV35 integrated step-up and collection systems.
Founded in 2018, JDEnergy has previously focused primarily on the commercial and industrial (C&I) energy storage market. The Dengkou project is the company’s first GWh-scale energy storage project.
Integrated PV manufacturer TCL TZE has released a profit warning, forecasting an adjusted net loss of RMB 8.60 billion to RMB 9.80 billion for fiscal year 2025, narrowing from a loss of RMB 10.90 billion in 2024.
The company attributes the losses primarily to industry-wide supply-demand imbalance and sustained low product pricing. TCL TZE noted that despite continued losses, the company recorded positive operating cash flow in 2025.
In November, TCL TZE reported narrowed losses for Q3 2025 (see China Solar PV News Snippets).
The China Meteorological Administration (CMA) and the National Energy Administration (NEA) have jointly issued guidelines outlining plans to establish a fully integrated energy-meteorology service system by 2027.
The document calls for a nationwide survey of wind and solar power resources, aiming to develop 1 × 1 km, hourly gridded resource assessment datasets, along with high-resolution solar resource maps. It also proposes enhancing dynamic monitoring and evaluation of solar resources by building high-accuracy, frequently updated databases.
In forecasting, the guidelines target seamless solar resource prediction, with a goal of reducing the 24-hour total solar irradiance forecast root mean square error (RMSE) to below 12%. For PV power output forecasting, the plan sets a target 24-hour accuracy rate of 89%, with particular emphasis on large-scale ‘desert, Gobi and arid region’ renewable bases as well as distributed PV systems.