Group 1 - The State Intellectual Property Office of China has published a patent application by China Southern Power Grid Co., Ltd. for a method and device for predicting transmission power probability, with publication number CN120165366A and application date of February 2025 [1] - The patent involves a method that includes inputting the grid topology, converting it into a power system graph, and using a graph neural network to obtain node embedding vectors, which are then used to generate training datasets for power flow calculations [1] - The training dataset consists of initial values including load demand and generator output data, and the method aims to derive a probability distribution for transmission power [1] Group 2 - China Southern Power Grid Co., Ltd. was established in 2004 and is based in Guangzhou, primarily engaged in the production and supply of electricity and heat [2] - The company has a registered capital of 9,020 million RMB and has made investments in 36 enterprises, participated in 5,000 bidding projects, and holds 5000 patent records [2] - Additionally, the company has 352 trademark records and 65 administrative licenses [2]