Relative kW response to residential time-varying pricing in British Columbia

Chi-Keung WOO, Ira Horowitz, Iris M. Sulyma

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


We apply graphical exploration and regression analysis to estimate 1717 participants' relative kW responses in BC Hydro's residential TOU/CPP pilot study. We define a customer's relative kW response as the percentage change in the customer's hourly kW demand due to exposure to time-varying pricing. Compared to the control group of customers facing non-TOU rates, we find that TOU pricing yields a statistically-significant evening peak kW decrease of 4-11%, after controlling for the effects of day of the week, month of the year, weather, customer location, and customer size. CPP produces an additional peak kW reduction of about 9%, which can be further increased to about 33% through remotely-activated load control of space and water heaters. Hence, a scheme of TOU pricing augmented with CPP and load control on system peak days can be a highly effective demand-response strategy for winter-peaking utilities.

Original languageEnglish
Article number6642136
Pages (from-to)1852-1860
Number of pages9
JournalIEEE Transactions on Smart Grid
Issue number4
Publication statusPublished - Dec 2013

Scopus Subject Areas

  • Computer Science(all)

User-Defined Keywords

  • Energy management
  • Load management
  • Power demand


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