An empirical analysis of domestic electricity load profiles: Who consumes how much and when?. (1st October 2020)

• Record Type: Journal Article
• Authors: Trotta, Gianluca
• Is Part Of: Applied energy. Volume 275(2020)
• Publication Date: 2020-10-01
• Subjects: Domestic electricity load profiles -- Hourly electricity consumption -- Household segmentation -- Cluster analysis -- Multinomial probit regression -- Denmark; Power (Mechanics) -- Periodicals; Energy conservation -- Periodicals; Energy conversion -- Periodicals; 621.042
• DOI: 10.1016/j.apenergy.2020.115399
• Languages: English
• ISSNs: 0306-2619

Abstract

Highlights: The electricity load profiles of Danish households and their drivers are analyzed. Hourly electricity consumption data combined with population-based registered data. K-means clustering and multinomial probit regression are employed. Four profiles with distinct characteristics are identified. Insights for utilities and policymakers aiming at reducing the peak demand. Abstract: With the increased share of renewables in power generation, end users play a key role in keeping the demand at levels that better match variable supply, maintaining lower overall system costs, and reducing carbon dioxide emissions. To increase the potential for demand-side flexibility, a deeper understanding of domestic electricity load profiles is needed. Informed by customer grouping based on similar consumption patterns and drivers, targeted interventions can be better designed to time-shift peak loads and reduce overall demand. Thus, the objectives of this study are (i) to segment households in relation to their electricity load patterns using K-means clustering and (ii) to investigate household characteristics that have an influence on electricity load patterns by employing multinomial probit regression. This study uses hourly electricity consumption for 2017, combined with population-based register data for a large sample of Danish households. The results indicate that four distinct Danish household groups are characterized by different timing and magnitudes of electricity consumption, which are influenced by specific sociodemographics and dwelling characteristics. Similarities between the groups emerge with respect to the evening peak consumption, seasonal variation in electricity demand, and weekend morning demand ramp-up. Challenges and opportunities for domestic load profiling in the power industry and policymaking are discussed.