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An Adaptable Net Zero Model: Energy Analysis of a Monitored Case Study

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  • Haleh Moghaddasi

    (Department of Architecture, Texas A&M University, College Station, TX 77843, USA)

  • Charles Culp

    (Department of Architecture, Texas A&M University, College Station, TX 77843, USA)

  • Jorge Vanegas

    (Department of Architecture, Texas A&M University, College Station, TX 77843, USA)

  • Saptarshi Das

    (Fellow, New York State Energy Research and Development Authority, Albany, NY 12203, USA)

  • Mehrdad Ehsani

    (Department of Electrical Engineering, Texas A&M University, College Station, TX 77843, USA)

Abstract

Increased efforts toward climate change mitigation and achieving net zero (NZ) are occurring globally. This research addresses three challenges to meeting the target NZ goals: (1) quantifying energy use reduction approaches, including energy efficiency and renewable power; (2) obtaining measured data to verify NZ achievements; and (3) providing NZ definitions to a globally understandable concept. To do so, a reorganized NZ concept (NZX% ( ORG) ) is proposed that is practical, measurable, and adaptable to different regions and requirements. The “X%” presents the fraction of renewable energy to the total energy used, and the “ORG” defines the organization’s NZ definition that a project uses. The objective of this proposal is to create a universally NZ concept and method, using measured utility power data, by (1) determining a baseline NZX% ( ORG) ; (2) projecting an optimized NZX% ( ORG) ; (3) measuring and reporting the actual NZX% ( ORG) . This application is extendable from a building level to the community, city, and country levels (NZCX% ( ORG) ). The Serenbe community, a monitored case study in Georgia, was analyzed. The baseline NZ rating using metered data was NZC16% (ASHRAE) . The analysis showed that improved energy efficiency measures (lighting, windows glazing, air sealing) along with increased on-site solar power generation (from 10% to 25% of all roof space), provided a projected NZC80% (ASHRAE) . In addition, publicly available documentation of the measured utility power is required for reporting the actual NZCX% (ORG) in Serenbe. Using NZX% (ORG) provides recognition of partial success in moving toward 100% renewable power.

Suggested Citation

  • Haleh Moghaddasi & Charles Culp & Jorge Vanegas & Saptarshi Das & Mehrdad Ehsani, 2022. "An Adaptable Net Zero Model: Energy Analysis of a Monitored Case Study," Energies, MDPI, vol. 15(11), pages 1-24, May.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:11:p:4016-:d:827705
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    References listed on IDEAS

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    1. Haleh Moghaddasi & Charles Culp & Jorge Vanegas, 2021. "Net Zero Energy Communities: Integrated Power System, Building and Transport Sectors," Energies, MDPI, vol. 14(21), pages 1-33, October.
    2. Dorotić, Hrvoje & Doračić, Borna & Dobravec, Viktorija & Pukšec, Tomislav & Krajačić, Goran & Duić, Neven, 2019. "Integration of transport and energy sectors in island communities with 100% intermittent renewable energy sources," Renewable and Sustainable Energy Reviews, Elsevier, vol. 99(C), pages 109-124.
    3. Wei, Wu & Skye, Harrison M., 2021. "Residential net-zero energy buildings: Review and perspective," Renewable and Sustainable Energy Reviews, Elsevier, vol. 142(C).
    4. Haleh Moghaddasi & Charles Culp & Jorge Vanegas & Mehrdad Ehsani, 2021. "Net Zero Energy Buildings: Variations, Clarifications, and Requirements in Response to the Paris Agreement," Energies, MDPI, vol. 14(13), pages 1-21, June.
    5. Erin C. Pischke & Barry D. Solomon & Adam M. Wellstead, 2018. "A historical analysis of US climate change policy in the Pan-American context," Journal of Environmental Studies and Sciences, Springer;Association of Environmental Studies and Sciences, vol. 8(2), pages 225-232, June.
    6. Chen, Yixing & Hong, Tianzhen & Piette, Mary Ann, 2017. "Automatic generation and simulation of urban building energy models based on city datasets for city-scale building retrofit analysis," Applied Energy, Elsevier, vol. 205(C), pages 323-335.
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    Cited by:

    1. Jingyu Cao & Wei Wu & Mingke Hu & Yunfeng Wang, 2023. "Green Building Technologies Targeting Carbon Neutrality," Energies, MDPI, vol. 16(2), pages 1-3, January.

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