A control framework for the utilization of heating load flexibility in a day-ahead market

Antti Alahäivälä*, James Corbishley, Jussi Ekström, Juha Jokisalo, Matti Lehtonen

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

15 Citations (Scopus)

Abstract

A flexible demand-side can have a positive influence on electricity markets and the entire electricity infrastructure once the flexibility is properly harnessed. Such a goal is becoming attainable with emerging smart grid technologies which allow the controlling of consumption and its aggregation to electricity markets. In this paper, we focus on the aggregation of detached houses with direct electric space heating (DESH) in terms of two main targets. Firstly, a basic framework for the aggregation is proposed and secondly, the benefit of the heating load flexibility for the aggregator and the consumers is investigated in the Nordic day-ahead electricity market Elspot. The loads are controlled with a simple strategy based on a centrally transmitted thermostat set-point signal, and this strategy is benchmarked against a more complex direct load control approach. As there is great flexibility potential in the heating load, the aggregattor is assumed to act as a price-maker in the market, where it seeks to minimize its energy cost and schedule the flexibility. The loads participating in the control are provided with a bonus based either on the caused inconvenience or the provided flexibility. In simulations studies, we use a detailed Finnish detached house population model and hourly market data from Nord Pool's Elspot.

Original languageEnglish
Pages (from-to)44-54
Number of pages11
JournalElectric Power Systems Research
Volume145
DOIs
Publication statusPublished - 1 Apr 2017
MoE publication typeA1 Journal article-refereed

Keywords

  • Aggregator
  • Demand response
  • Direct electric space heating
  • Nord Pool

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