University of Oulu

Sanna Tuomela, Mauricio de Castro Tomé, Netta Iivari, Rauli Svento, Impacts of home energy management systems on electricity consumption, Applied Energy, Volume 299, 2021, 117310, ISSN 0306-2619,

Impacts of home energy management systems on electricity consumption

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Author: Tuomela, Sanna1; de Castro Tomé, Mauricio2; Iivari, Netta1;
Organizations: 1Interact Research Unit, University of Oulu, Finland
2Centre for Wireless Communications, University of Oulu, Finland
3Oulu Business School, University of Oulu, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 8.4 MB)
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Language: English
Published: Elsevier, 2021
Publish Date: 2021-12-08


Home energy management systems (HEMS) connect homes to a smart grid and may increase the overall use of renewable energy by directing energy demand to off-peak hours and increasing energy conservation. However, the promised changes in electricity consumption have yet to be proven in real-life experiments. We therefore analysed the changes in electricity consumption, daily consumption profiles, and number of low and high consumption hours after installing HEMS in 10 Finnish households. These changes were examined in the context of the values related to energy use in each household, which were derived from semi-structured interviews. In the real-life experiment, we showed that the HEMS reduced the total consumption of electricity in the winter months by up to 30%, shifted the consumption to off-peak hours and decreased the number of high consumption hours. These changes occurred even in the homes that valued comfort over savings or ecological sustainability. Nevertheless, the levels of energy conservation varied greatly between the households and between months in the same homes.

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Series: Applied energy
ISSN: 0306-2619
ISSN-E: 1872-9118
ISSN-L: 0306-2619
Volume: 299
Article number: 117310
DOI: 10.1016/j.apenergy.2021.117310
Type of Publication: A1 Journal article – refereed
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This work was supported by the Strategic Research Council at the Academy of Finland [BCDC Energy AKA292854]; the Fortum and Neste Foundation [grant number 20190098]; SITRA fund, the municipality of Ii and Iin Energia through the project Iisisti Energinen.
Academy of Finland Grant Number: 292854
Detailed Information: 292854 (Academy of Finland Funding decision)
Copyright information: © 2021 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (