Implementation of low-carbon strategies for energy efficiency and climate adaptation: a case study in hot and arid residential buildings

Khaled Almazam, Omar Humaidan, Yakubu Aminu Dodo, Faizah Mohammed Bashir, Emmanuel Falude and Bharosh Kumar Yadav

International Journal of Low-Carbon Technologies, 2025, vol. 20, 1173-1183

Abstract: This study assesses the energy efficiency and economic viability of integrated low-carbon technologies in Najran University’s residential buildings under hot–arid conditions. A 24-month analysis of 100 housing units and the Main Library revealed a 42% energy consumption reduction, with solar PV (25.2%), VRF HVAC (10.4%), LED lighting (4.8%), and building envelope upgrades (1.6%) as major contributors. Synergistic effects added a 3% reduction. Economic analysis showed payback periods from 5.8 years (LED) to 15.4 years (envelope), all with positive net present values. Indoor quality improved with 4.8% lower temperatures and 45.8% better stability. Results advocate integrated sustainable practices for hot–arid regions.

Keywords: building energy efficiency; carbon emission reduction; hot–arid climate; low-carbon technologies; sustainable architecture (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:oup:ijlctc:v:20:y:2025:i::p:1173-1183.

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