Micro-grid is a combination of multiple distributed generators (DGs) and/or storage units which provide energy to comparatively small local communities Micro-grid (MG) is formed by renewable sources. MG is a small scale network of low voltage distributed renewable energy resources (DER).This paper reviews the optimal energy management for a MG under various constraints. This paper emphasize on the different methods adopted by various authors to optimize fuel cost, manage peak load and reduce

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... emissions by scheduling generation of DERs in each hour or for particular time 't'. MG model includes battery as a storage device; hence the battery life also becomes one of the constraints. Mainly DERs are wind and solar source and are dependent on climatic conditions. The authors have used deterministic method to address aforesaid costaints.