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Published December 2013 | public
Book Section - Chapter

On the distribution of energy storage in electricity grids

Abstract

Distributed energy storage is a promising emerging technology for smart grid. In this paper, we address the question of optimally placing and sizing distributed storage resources in a network to minimize the cost of generation given a budget of available storage. For a non-decreasing convex generation cost, we prove that it is always optimal to place zero storage at generator buses that connect to rest of the grid via single links, regardless of demand profiles and network parameters. Hence, this defines a robust investment strategy for network planners. Besides, for a star network where the center is a generator bus and the other nodes are demand buses, we show that it is optimal not to place storage resources at the generator bus for small enough and large enough storage budget.

Additional Information

© 2013 IEEE. This work was supported in part by NSF under grants CCF-0729203, CNS-0932428 and CCF-1018927, NetSE grant CNS 0911041, Office of Naval Research MURI grant N00014-08-1-0747, Caltech Lee Center for Adv. Net., ARPA-E grant DE-AR0000226, Southern Cali. Edison, Nat. Sc. Council of Taiwan, R.O.C. grant NSC 101-3113-P-008-001, Resnick Inst., Okawa Foundation and Andreas Mentzelopoulos Scholarships for the Univ. of Patras.

Additional details

Created:
August 19, 2023
Modified:
March 5, 2024