Abstract: The goal of this paper is to investigate the cloud computing in smaert grid. First of all,we introduced the basic concept of cloud computing and analyzed its major characteristics. Secondly, we combined cloud computing with smart grid and presented the view of smart cloud. Subsequently, we looked deeper into the three key issues, including construction of smart cloud, resource management and security policy. Finally, we pointed out future directions of research and concluded the paper.

Key words: Smart grid, Cloud computing, Smart cloud, Resource management, Security policy