Demand Response for Ancillary Services

Paul Denholm, Marissa Hummon, Ookie Ma, Nasr Alkadi, Peter Cappers, Junqiao Dudley, Sasank Goli, Sila Kiliccote, Jason MacDonald, Nance Matson, Daniel Olsen, Cody Rose, Michael Sohn, Michael Starke, Brendan Kirby, Mark O'Malley

Research output: Contribution to journalArticlepeer-review

273 Scopus Citations


Many demand response resources are technically capable of providing ancillary services. In some cases, they can provide superior response to generators, as the curtailment of load is typically much faster than ramping thermal and hydropower plants. Analysis and quantification of demand response resources providing ancillary services is necessary to understand the resources' economic value and impact on the power system. Methodologies used to study grid integration of variable generation can be adapted to the study of demand response. In the present work, we describe and implement a methodology to construct detailed temporal and spatial representations of demand response resources and to incorporate those resources into power system models. In addition, the paper outlines ways to evaluate barriers to implementation. We demonstrate how the combination of these three analyses can be used to assess economic value of the realizable potential of demand response for ancillary services.

Original languageAmerican English
Article number6630115
Pages (from-to)1988-1995
Number of pages8
JournalIEEE Transactions on Smart Grid
Issue number4
StatePublished - Dec 2013

NREL Publication Number

  • NREL/JA-6A20-60895


  • Aggregation
  • Ancillary services
  • Demand response
  • Demand-side storage
  • Electricity markets
  • Institutional barriers
  • Operating reserves
  • Smart grid
  • System flexibility


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