Core Insights - The Huaneng "Yellow Sea No. 1" floating photovoltaic platform has successfully completed its upgrade and debugging work, achieving the integration of vertical axis wind turbines and floating photovoltaic systems for efficient utilization of marine space [1][2]. Group 1: Platform Development - The "Yellow Sea No. 1" platform is China's first anti-wave deep-sea floating photovoltaic platform, constructed by Huaneng Shandong Yantai Power Plant and designed by Huaneng Clean Energy Technology Research Institute [2]. - The platform is set to be operational in October 2024 at the Huaneng Shandong Peninsula South No. 4 offshore wind farm, having undergone suitability tests to verify the reliability of its structural, electrical, and monitoring systems [2]. Group 2: Technological Integration - The platform features a co-platform design that integrates vertical axis wind turbines with floating photovoltaic systems, enhancing energy output efficiency per unit area of sea [2]. - Two "water droplet" vertical axis wind turbines, developed by China Huaneng, have been added to the platform, focusing on the interaction between platform structure, turbine layout, and buoyancy systems [2]. Group 3: Performance and Efficiency - The upgraded platform is designed to extend overall power generation time and smooth out fluctuations in power output, providing significant technical reference for future large-scale development of composite energy fields [2].