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The Flexibility of Thermostatically ControlledLoads as a Function of Price Notice Time
KTH, School of Electrical Engineering and Computer Science (EECS), Electric Power and Energy Systems. (IRES)ORCID iD: 0000-0003-0685-0199
KTH, School of Electrical Engineering and Computer Science (EECS), Electric Power and Energy Systems. (IRES)ORCID iD: 0000-0002-8189-2420
University of Michigan Ann Arbor, MI 48109 USA. (Department of Electrical Engineering & Computer Science)
2018 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Due to increased use of variable renewable energy sources, more capacity for balancing and ancillary services (AS) is required. Non-generating resources such as thermostatically controlled loads (TCLs) can arbitrage energy prices and provide AS due to their thermal energy storage capacity. This paper explores the impact of energy/AS price notice time, i.e. the time between when the price is announced and when it takes effect, on the TCL energy consumption and AS capacity bids, and quantifies trade-offs between notice time and flexibility. We first optimize the energy consumption and AS capacity offers at a given notice time, varied from 24 hours ahead to real-time. We then introduce uncertainty in TCL availability, formulate the stochastic optimization problem, and evaluate how the trade-offs change. We find that price notice time impacts TCL profits, but does not significantly affect the total AS capacity offered over the day. However, AS capacity offers are impacted by uncertainty, which is likely to increase with notice time.

Place, publisher, year, edition, pages
Dublin, 2018.
Keywords [en]
ancillary services, demand response, electricity prices, notice time, thermostatically controlled loads
National Category
Energy Systems
Identifiers
URN: urn:nbn:se:kth:diva-231946OAI: oai:DiVA.org:kth-231946DiVA, id: diva2:1231139
Conference
Power Systems Computation Conference (PSCC) 2018
Funder
Swedish Energy Agency, 76178
Note

QC 20180717

Available from: 2018-07-05 Created: 2018-07-05 Last updated: 2018-07-17Bibliographically approved

Open Access in DiVA

The full text will be freely available from 2018-11-30 15:11
Available from 2018-11-30 15:11

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Herre, LarsSöder, Lennart

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf