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A review of the value of aggregators in electricity systems

S. Burger, J.P. Chaves, C. Batlle, I.J. Pérez-Arriaga

Distributed energy resources («DERs») are being adopted throughout the world. Aggregators are lauded by some as critical in enabling DERs to provide these valuable electricity services at scale; in this light, regulatory and policy bodies are discussing the role of aggregators and even the need to support their market entry. In order to shed light on the economically efficient regulation of aggregators in electricity systems, this paper systematically assesses the economic fundamentals of aggregators. We perform a critical review of the value of aggregators, defining the factors that determine their role in power systems under different technological and regulatory scenarios. We identify three categories of value that aggregators may create: fundamental, transitory, and opportunistic. Fundamental value is intrinsic to aggregation and is independent of the market or regulatory context. Transitory value can be significant in the near term, but may be diminished by technological or regulatory advances. Finally, opportunistic value emerges as a result of regulatory or market design flaws and may endanger the economic efficiency of the power system. This paper provides a template for regulators to encourage the efficient development of aggregators while eliminating the potential for economic inefficiencies through opportunistic aggregation.

Keywords: Aggregation; Retail Electricity Economics; Distributed Energy Resources; Demand Response; Regulation; Electricity Retail.

Renewable & Sustainable Energy Reviews. Volume: 77 Pages: 395-405

JCR Impact Factor and Scopus quartile: JCR impact factor: 9.184 (2017); 10.556 (2018).

DOI reference: DOI icon 10.1016/j.rser.2017.04.014    

Published on paper: September 2017. Published on-line: May 2017.

S. Burger, J.P. Chaves, C. Batlle, I.J. Pérez-Arriaga. A review of the value of aggregators in electricity systems. Renewable & Sustainable Energy Reviews. vol. 77, pp. 395-405, September 2017. [Online: May 2017]

    Topics research:
  • *Smart grids
  • *Energy markets design and regulation

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