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Energy and Water Saving Potential in Commercial Buildings: A Retrofit Case Study

Author

Listed:
  • Wahhaj Ahmed

    (Architectural Engineering Department, King Fahd University of Petroleum and Minerals, P.O. Box 855, Dhahran 31261, Saudi Arabia)

  • Ayman Alazazmeh

    (Mechanical Engineering Department, King Fahd University of Petroleum and Minerals, P.O. Box 279, Dhahran 31261, Saudi Arabia)

  • Muhammad Asif

    (Architectural Engineering Department, King Fahd University of Petroleum and Minerals, P.O. Box 855, Dhahran 31261, Saudi Arabia
    Center for Renewable Energy and Power Systems, King Fahd University of Petroleum and Minerals, P.O. Box 855, Dhahran 31261, Saudi Arabia)

Abstract

The global building sector has great potential for energy savings. Retrofitting of existing buildings can effectively improve their energy and environmental sustainability. However, retrofitting is a complex task and requires proper Measurement & Verification (M&V) to validate the process for various building types and locations. Such M&V studies for commercial buildings in the studied region are missing and a critical gap exists. This paper addresses this gap by discussing the effectiveness of retrofit energy and water efficiency measures implemented in a commercial building in Saudi Arabia. At first, a thorough energy audit is conducted and then five Energy Efficiency Measures (EEMs) and a water conservation measure is implemented. A post-retrofit M&V exercise is conducted to measure and validate the savings along with respective economic benefits. The results indicate that the implemented EEMs reduced the building’s annual energy consumption by 27%. The overall compound payback period for the investments is found to be six years. The study successfully validates the energy and water savings achievable through retrofitting by presenting the first M&V case study of a post-retrofit commercial building in the country. Thus, it proves that implementation of EEMs and water saving measures are effective strategies to retrofit commercial buildings in the region.

Suggested Citation

  • Wahhaj Ahmed & Ayman Alazazmeh & Muhammad Asif, 2022. "Energy and Water Saving Potential in Commercial Buildings: A Retrofit Case Study," Sustainability, MDPI, vol. 15(1), pages 1-17, December.
    • Handle: RePEc:gam:jsusta:v:15:y:2022:i:1:p:518-:d:1017815
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    References listed on IDEAS

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