Container terminal located in developing country or region，where power grid cannot fulfill the terminal power consumption，usually rely on a diesel-based power generation.The ship to shore crane operation character is a frequent fluctuated load.In some extreme condition，the operation of diesel gen-set faces a challenge because of a large inverse power feedback to the power supply system.According to the condition of the project supported，we compare different energy storage technologies，propose a recommendation that using high-speed fly wheel system and battery energy storage system(BESS) to develop a micro-grid improvement retrofit scheme to mitigate the fluctuations from the load side.We also propose suggestions on micro-grid control strategy study，interfaces for renewable power connections and interfaces between other micro-grid and distribution grid，so as to develop a modular，standardized and intelligent micro-grid configuration scheme for container terminals.