Core Viewpoint - Sinopec's Dalian Institute of Petroleum and Chemical Technology has successfully deployed a 125 kW iron-chromium flow battery energy storage system at the 6 MW photovoltaic station in Hebei, marking a breakthrough in long-term energy storage technology integration and engineering [1] Group 1: Technology Development - The project achieves an energy efficiency of over 70% on the AC side, integrating photovoltaic, energy storage, and charging systems [1] - Key technological breakthroughs include the development of a highly stable electrolyte, innovative integrated sealed stack structure, and a safe and environmentally friendly capacity recovery process [1] Group 2: Project Impact - The project successfully constructs a distributed comprehensive energy unit combining "photovoltaic + energy storage + charging," allowing for prioritized storage of clean electricity generated from solar energy and intelligent release as needed [1] - This significantly enhances local grid regulation capabilities and power supply resilience, facilitating on-site consumption and flexible dispatch of renewable energy [1] Group 3: Future Plans - The Dalian Institute will continue to promote technological iteration and large-scale application to support urban energy structure optimization and the establishment of a green low-carbon energy system [1]