Core Viewpoint - The smart grid sector is experiencing strong performance, with several companies leading the market, showcasing advancements in technology and solutions for smart grid applications. Company Summaries - **Senyuan Electric (002358.SZ)**: Latest stock price: 6.45 CNY, daily increase: 10.07%. A leading provider of intelligent power equipment solutions, offering products like smart high and low voltage switchgear and smart substation automation systems with features such as status monitoring and remote control [1]. - **Hancable Co., Ltd. (002498.SZ)**: Latest stock price: 8.46 CNY, daily increase: 10.10%. Notable for its technological advantages in high and ultra-high voltage cross-linked cables, providing online monitoring solutions for smart substations, essential for the safe and stable operation of smart grids [2]. - **Electric Power Research Institute (300215.SZ)**: Latest stock price: 8.16 CNY. A national independent third-party comprehensive electrical testing organization, covering critical areas such as ultra-high voltage transmission and transformation equipment and smart grid devices [3]. - **Jicheng Electronics (002339.SZ)**: Latest stock price: 10.36 CNY, daily increase: 20.00%. A leading provider of overall solutions for smart grids, with a product line covering all aspects of generation, transmission, transformation, distribution, usage, and dispatch, featuring automated systems for fault diagnosis and self-healing [4]. - **Guangdian Electric (601616.SH)**: Latest stock price: 10.10 CNY, daily increase: 10.10%. Focused on smart transmission and distribution equipment for 40.5KV and below, integrating smart monitoring functions to meet the automation needs of smart grid distribution networks [5]. - **Hongsheng Huayuan (601096.SH)**: Latest stock price: 4.58 CNY, daily increase: 10.59%. Develops smart energy management systems, enabling real-time cloud monitoring of substation equipment through smart gateways and utilizing AI technology to optimize energy structures [6]. - **Siyuan Electric (002028.SZ)**: Latest stock price: 185.90 CNY, daily increase: 10.02%. Manufacturer with capabilities in research and production of primary and secondary equipment for power systems, covering five major categories of smart grid business including reactive power compensation and digital substations [7]. - **Xigao Institute (688334.SH)**: Latest stock price: 25.06 CNY, daily increase: 19.50%. A leader in testing for ultra-high voltage, focusing on the construction of smart grids and providing inspection, testing, certification, and technical services for key equipment like high voltage switches and transformers [8]. - **New Wind Light (688663.SH)**: Latest stock price: 55.00 CNY, daily increase: 15.55%. Offers high voltage dynamic reactive power compensation devices (SVG) and energy storage PCS products for smart grid projects, enhancing grid stability and power quality [9]. - **Hongxiang Co., Ltd. (300427.SZ)**: Latest stock price: 15.62 CNY, daily increase: 10.78%. Engages in providing power detection and monitoring equipment to ensure grid safety, along with secondary fusion switch devices and distribution automation terminals for smart distribution networks [10]. - **Wansheng Intelligent (300882.SZ)**: Latest stock price: 24.90 CNY, daily increase: 8.07%. Focuses on the power distribution industry, specializing in smart meters and electricity information collection systems, essential components of the smart grid usage segment [11]. - **Yubang Electric (688597.SH)**: Latest stock price: 9.93 CNY, daily increase: 7.70%. A key supplier for national smart grid and power IoT, providing smart meters, collection terminals, and intelligent inspection services, covering the entire chain of "source, network, load, storage, intelligence" [11]. - **Hualing Cable (001208.SZ)**: Latest stock price: 25.44 CNY, daily increase: 7.12%. A domestic special cable manufacturer responding to national smart grid construction, maintaining good business relationships with State Grid and Southern Grid [13]. - **Baiyun Electric (603861.SH)**: Latest stock price: 14.60 CNY, daily increase: 6.96%. A comprehensive service provider for power energy, increasing investment in "secondary" intelligent technology to offer green and intelligent transmission and distribution products and system solutions [14]. - **Jiechuang Intelligent (301248.SZ)**: Latest stock price: 66.73 CNY. Smart grid is part of the company's smart city business, providing intelligent solutions for Southern Grid and China General Nuclear Power, collaborating with various local grid units [15]. - **Changgao Electric New (002452.SZ)**: Latest stock price: 9.50 CNY, daily increase: 6.15%. A major manufacturer of high voltage isolating switches, widely used in smart grid transmission and distribution, recognized as an excellent supplier for State Grid and Southern Grid [16].