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Smart Grid networks use data collected from sensors in evaluating the current system state to make optimal resource distribution decisions and facilitate two-way energy exchange. Efficient and timely communication between smart grid assets using high efficiency and reliable Neighborhood Area Network (NAN) for the last-mile can play a significantly important role. For this requirement, wireless mesh networking can be used to offer scalable, flexible and resilient wireless connectivity. Despite significant advantages and tremendous applications, smart grid NANs are vulnerable to security and reliability issues during electric power delivery. After being compromised by an adversary, cascading-failure-induced disasters may disrupt the power grid from a remote location; customer’s private information may become vulnerable if accessed illegally; the adversary may also compromise selected nodes (change the normal …