The global residential storage market features fragmented competition. Leading brands including Tesla, Huawei, BYD and Sungrow occupy high-end European and American markets, while local regional integrators build channel barriers. Strict safety certifications raise entry thresholds in Europe and North America, enabling premium gross margins of 35%-50% for famous brands. Southeast Asian and Latin American markets have low barriers where small manufacturers gain market share via low-price products. Two major challenges exist: volatile lithium prices affect production costs and profits, and tariff & certification barriers hinder overseas expansion. Chinese storage enterprises expand globally relying on complete industrial chains and develop sodium-ion batteries to hedge lithium price risks. As market penetration grows, competition will shift from price wars to comprehensive competition in safety and intelligent control systems.