Measuring and Comparing Energy Flexibilities

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Flexibility in energy supply and demand becomes more and more important with increasing Renewable Energy Sources (RES) production and the emergence of the Smart Grid. So-called prosumers, i.e., entities that produce and/or consume energy, can offer their inherent flexibilities through so-called demand response and thus help stabilize the energy markets. Thus, prosumer flexibility becomes valuable and the ongoing Danish project TotalFlex [1] explores the use of prosumer flexibility in the energy market using the concept of a flex-offer [2], which captures energy flexibilities in time and/or amount explicitly. However, in order to manage and price the flexibilities of flex-offers effectively, we must first be able to measure these flexibilities and compare them to each other. In this paper, we propose a number of possible flexibility definitions for flex-offers. We consider flexibility induced by time and amount individually, and by their com- bination. To this end, we introduce several flexibility measures that take into account the combined effect of time and energy on flex-offer flexibility and discuss their respective pros and cons through a number of realistic examples.
Original languageEnglish
Title of host publicationProceedings of the Workshops of the EDBT/ICDT 2015 Joint Conference (EDBT/ICDT)
EditorsPeter M. Fischer, Gustavo Alonso, Marcelo Arenas, Floris Geerts
Number of pages8
PublisherCEUR Workshop Proceedings
Publication date2015
Publication statusPublished - 2015
EventEDBT/ICDT Joint Conference - Brussels, Belgium
Duration: 16 Mar 201527 Mar 2015


ConferenceEDBT/ICDT Joint Conference
SeriesCEUR Workshop Proceedings


  • Energy Flexibility
  • Flex-offers
  • Flexibility Measures


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