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In this paper, two models are presented to incorporate short-term Stored Energy Resources (SER) into multiple-interval real time look-ahead Security Constrained Economic Dispatch (SCED). The first model is an extension of the previous implementation of SER under single interval real time SCED. With this approach, SER energy dispatch is pre-determined so that the maximum amount of regulating reserve can be cleared. The second approach is a novel model to co-optimize SER energy dispatch and regulating reserve clearing inside multiple-interval SCED optimization. Study on a three-bus system indicates that using multiple-interval SCED and incorporating SER can both potentially reduce the market clearing cost. The approach of co-optimizing SER energy dispatch and regulating reserve clearing under multiple-interval look-ahead framework provides the most benefits.