Energy efficiency in residential buildings amid COVID-19: A holistic comparative analysis between old and new normal occupancies

Rana, Anber; Kamali, Mohammad Hāshim; Riyadh, M M; Sultana, S.; Kamal, Mehdi; Alam, Muddasser; Hewage, Kasun; Sadiq, Rehan

doi:10.1016/j.enbuild.2022.112551

Cited by 14 publications

(4 citation statements)

References 57 publications

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“…Rana et al (2022, p. 1) [93] and Su, Cheng, Wang, & Wang (2022, p. 16) [53] showed that the COVID-19 pandemic has changed lifestyles in the long term, which has lasting effects on energy consumption.…”

Section: Literature Reviewmentioning

confidence: 99%

Changes in the Pattern of Weekdays Electricity Real Consumption during the COVID-19 Crisis

Jula

Oancea

et al. 2023

Energies

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In this paper, using data from Romania, we analysed the changes in electricity consumption generated during the COVID-19 crisis, and the measures taken against the spread of the coronavirus to limit the effects of the pandemic. Using a seasonal autoregressive econometric model, we found that, beyond seasonal (weekly, monthly, quarterly, yearly) effects, the average daily electricity real consumption in Romania, during the state of the emergency period (16 March 16 to 14 May 2020) decreased by −194.8 MW (about −2.9%), compared to the historical data (2006–March 2022), and this decrease is not due to the action of some random factors, and it is not a manifestation of domain-specific seasonality. The literature discusses the hypothesis that during the pandemic time, the profile of daily electricity consumption on weekdays was close to the typical Sunday profile. We tested a similar hypothesis for Romania. As a methodology, we tried to go beyond the simple interpretation of statistics and graphics (as found in most papers) and we calculated some measures of distances (the Mahalanobis distance, Manhattan distance) and similarity (coefficient of correlation, cosines coefficient) between the vectors of daily electricity real consumptions, by hourly intervals. As the time interval, we have analysed, for Romania, the electricity real consumption over the period January 2006–March 2022, by day of the week and within the day, by hourly intervals (5911 observations). We found (not very strong) evidence supporting a hypothesis that, in the pandemic crisis, the profile of electricity consumption approaches the weekend pattern only for the state of the emergency period, and we could not find the same evidence for the state of the alert period (June 2020–March 2022). The strongest closeness is to the hourly consumption pattern of Saturday. That is, for Romania, in terms of electricity consumption, “under lockdown, every day is a Sunday” (Staffell) it is rather “under lockdown, every day is (almost) a Saturday”! During the state of the alert period, consumption returned to the pre-crisis profile. Since certain behaviours generated by the pandemic have been maintained in the medium and long term (distance learning, working from home, online sales, etc.), such studies can have policy implications, especially for setting energy policy measures (e.g., in balancing load peaks).

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Section: Literature Reviewmentioning

confidence: 99%

Changes in the Pattern of Weekdays Electricity Real Consumption during the COVID-19 Crisis

Jula

Oancea

et al. 2023

Energies

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“…In 2020, the COVID-19 outbreak caused a dramatic change in the distribution of energy consumption in buildings. Among them, the energy consumption of large public buildings decreased significantly (except for some hotels expropriated by the government), while the energy consumption of residential buildings increased significantly [27]. Although the overall energy consumption of buildings was in a state of decline in 2022, with the epidemic prevention and improvement in situation control, the rapid advancement of urbanization, and the in-depth adjustment of the industrial structure, the energy consumption and carbon emissions of the construction industry will further increase under the post-epidemic era.…”

Section: Energy Consumption Distribution Of Large Public Buildingsmentioning

confidence: 99%

Energy-Saving Operation Strategy for Hotels Considering the Impact of COVID-19 in the Context of Carbon Neutrality

Xin²,

Zhu

et al. 2022

Sustainability

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With the advent of the post-epidemic era, the energy consumption characteristics of hotels have changed, which has an important impact on urban energy conservation. In order to contribute to the goal of carbon neutrality, this study discusses the energy-saving operation strategy of hotels considering the impact of the COVID-19 epidemic. Based on the energy consumption characteristics of large public buildings, this paper analyzes the energy consumption distribution and operation characteristics of hotel buildings in detail. By collecting energy consumption data from five typical large hotel buildings in a tourist city in southern China from 2018 to 2022, the impact of COVID-19 on hotel energy consumption and hotel business characteristics was discussed in detail. Combined with the economic development characteristic in the post-epidemic era, this paper explores the energy-saving strategies that hotels can adopt in the context of normalized epidemic prevention and control and obtains the optimal path of low-carbon economic operation of hotel buildings. This study reveals the energy consumption characteristics and energy-saving potential of hotel buildings, and provides enlightenment for hotel management and low-carbon development in the post-epidemic era.

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“…These measures restricted people's activities in different types buildings, and thus affected the energy consumption pattern accordingly. Recent studies have consistently identified energy consumption increases in the residential sector [ [5] , [6] , [7] , [8] ] while decreases in the non-residential sector such as university buildings [ [9] , [10] , [11] ], municipal buildings [ 12 ], commercial buildings [ 13 ] and offices [ 14 ]. Although these studies confirmed the significant impact, it is unclear whether the impact is continuing, which is an important question to explore further for managing the energy profiles in the post-pandemic era.…”

Section: Introductionmentioning

confidence: 99%

Gaussian Mixture Model based pattern recognition for understanding the long-term impact of COVID-19 on energy consumption of public buildings

Huang¹,

Gou²

2023

Journal of Building Engineering

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Energy efficiency in residential buildings amid COVID-19: A holistic comparative analysis between old and new normal occupancies

Cited by 14 publications

References 57 publications

Changes in the Pattern of Weekdays Electricity Real Consumption during the COVID-19 Crisis

Changes in the Pattern of Weekdays Electricity Real Consumption during the COVID-19 Crisis

Energy-Saving Operation Strategy for Hotels Considering the Impact of COVID-19 in the Context of Carbon Neutrality

Gaussian Mixture Model based pattern recognition for understanding the long-term impact of COVID-19 on energy consumption of public buildings

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