上能电气：公司主营业务为电力电子设备的研发、生产、销售

Core Viewpoint - The company, Shangneng Electric (300827), focuses on the research, development, production, and sales of power electronic devices, indicating a strong position in the renewable energy sector [1] Group 1: Main Business and Products - The company's main business includes the development, production, and sales of power electronic devices [1] - Key products offered by the company are photovoltaic inverters (PV Inverter), bidirectional converters for energy storage (PCS), active filters (APF), and low-voltage reactive power compensators (SVG) [1] - The company also provides integrated solutions for photovoltaic power generation systems and energy storage systems [1]