Assessment of energy-saving strategies mitigating high energy usage in residential buildings

Purpose: The increasing energy consumption in residential buildings poses significant challenges to sustainability, economic efficiency, and environmental health. Despite the availability of numerous energy-saving strategies, their adoption remains inconsistent due to various barriers such as cost, awareness and technical limitations. This paper aims to assess energy-saving strategies mitigating high energy consumption in residential buildings. Design/methodology/approach: The study adopted a quantitative research methodology. A carefully developed study questionnaire was distributed to a group of 20 Delphi experts to collect quantitative data. These experts possess extensive experience in the areas of energy use, energy management and energy savings. The questionnaire was also issued to the end users to gather quantitative data. The collected data were analyzed using descriptive analysis. Findings: The study results indicate a strong preference for certain energy-saving measures, with energy-efficient appliances, occupant behavior adjustments and heating, ventilation and air conditioning (HVAC) system upgrades emerging as the most frequently adopted strategies. Measures such as installing smart thermostats and energy-efficient windows also ranked highly, reflecting their perceived effectiveness in reducing energy consumption. However, strategies like weatherizing buildings and using smart power strips were less frequently implemented, suggesting lower prioritization or barriers to adoption. The findings further emphasize the importance of HVAC-related maintenance and upgrades, highlighted by their top rankings and frequent use, while simpler actions, such as insulation and turning off lights, were ranked lower despite their potential for energy savings. Research limitations/implications: The study’s limitations include reliance on self-reported data, potential bias in participant responses and a lack of consideration for contextual factors such as regional climate, socioeconomic conditions and technological access that may influence the adoption of energy-saving measures. Originality/value: This research is distinctive in its integration of the Delphi method with questionnaires to holistically evaluate and assess energy-saving measures for reducing excessive energy use in residential structures. By integrating expert consensus with empirical data from diverse residential contexts, it provides a comprehensive and nuanced understanding of effective energy management practices.