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Buildings 2017, 7(2), 37; doi:10.3390/buildings7020037

Impact of Demand-Side Management on Thermal Comfort and Energy Costs in a Residential nZEB

1
Catalonia Institute for Energy Research (IREC), 08930 Sant Adrià de Besòs (Barcelona), Spain
2
Department of Automatic Control, Polytechnic University of Catalonia (UPC), 08028 Barcelona, Spain
3
Department of Fluid Mechanics, Polytechnic University of Catalonia (UPC), 08019 Barcelona, Spain
*
Author to whom correspondence should be addressed.
Academic Editors: Francesco Guarino and Sonia Longo
Received: 31 March 2017 / Revised: 28 April 2017 / Accepted: 2 May 2017 / Published: 9 May 2017
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Abstract

In this study, simulation work has been carried out to investigate the impact of a demand-side management control strategy in a residential nZEB. A refurbished apartment within a multi-family dwelling representative of Mediterranean building habits was chosen as a study case and modelled within a simulation framework. A flexibility strategy based on set-point modulation depending on the energy price was applied to the building. The impact of the control strategy on thermal comfort was studied in detail with several methods retrieved from the standards or other literature, differentiating the effects on day and night living zones. It revealed a slight decrease of comfort when implementing flexibility, although this was not prejudicial. In addition, the applied strategy caused a simultaneous increase of the electricity used for heating by up to 7% and a reduction of the corresponding energy costs by up to around 20%. The proposed control thereby constitutes a promising solution for shifting heating loads towards periods of lower prices and is able to provide benefits for both the user and the grid sides. Beyond that, the activation of energy flexibility in buildings (nZEB in the present case) will participate in a more successful integration of renewable energy sources (RES) in the energy mix. View Full-Text
Keywords: thermal comfort; demand-side management; nearly-zero energy building; TRNSYS simulation; energy flexibility in buildings; price-based control thermal comfort; demand-side management; nearly-zero energy building; TRNSYS simulation; energy flexibility in buildings; price-based control
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Péan, T.Q.; Ortiz, J.; Salom, J. Impact of Demand-Side Management on Thermal Comfort and Energy Costs in a Residential nZEB. Buildings 2017, 7, 37.

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