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Publication Detail
Domestic demand-side response with heat pumps: controls and tariffs
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Article
  • Authors:
    Sweetnam T, Fell MJ, Oikonomou E, Oreszczyn T
  • Publisher:
    Taylor & Francis
  • Publication date:
    08/03/2018
  • Journal:
    Building Research and Information
  • Print ISSN:
    0961-3218
  • Keywords:
    demand-side response, air source heat pumps, control systems
Abstract
Electric heat pumps feature prominently in projected energy transitions in the UK and elsewhere. Due to their high electricity consumption, they are viewed as important targets for demand-side response (DSR). This paper presents findings from a field trial of a new control system which aims to optimize heat pump performance, including under time-varying tariff conditions. The trial involved monitoring 76 properties with heat pumps but without dedicated heat storage, 31 of these received the control system. Interviews were conducted with a sub-sample of 12 participants. The controller successfully evened out electricity demand over the day (reducing the evening peak), but this was associated with increased late night and daytime temperatures. Interview participants reported some disturbance due to overnight heating and noise, as well as usability issues with the controller interface and hardware. These issues present risks to the future acceptability of such systems. While the system delivered short term demand reductions successfully longer-term demand shifting risked causing unacceptable disturbance to occupants. Future control systems could overcome some of the issues identified in this pioneering trial through more effective zoning, utilising temperature caps or installing dedicated heat storage but these may either limit the available flexibility or be challenging to achieve.
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Bartlett School Env, Energy & Resources
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Bartlett School Env, Energy & Resources
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Bartlett School Env, Energy & Resources
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