Sustainable Building Practices for a Net-Zero Future: Enhancing Energy Efficiency and Carbon Reduction

A special issue of Buildings (ISSN 2075-5309). This special issue belongs to the section "Building Energy, Physics, Environment, and Systems".

Deadline for manuscript submissions: 28 February 2026 | Viewed by 1419

Special Issue Editors


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Guest Editor
Mechanical and Building Sciences, Audisankara College of Engineering & Technology (Deemed-to-be University), Gudur 524101, Andhra Pradesh, India
Interests: renewable energy; solar thermal conversion; thermal energy storage; characterization of phase change materials
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Guest Editor
Audisankara College of Engineering & Technology (Deemed-to-be University), Gudur 524101, Andhra Pradesh, India
Interests: structural optimization; sustainable buildings; green building

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Guest Editor
Mechanical Engineering Department, College of Engineering, Imam Mohammad Ibn Saud Islamic University, Riyadh 11432, Saudi Arabia
Interests: energy; heat transfer; natural fibers composite

Special Issue Information

Dear Colleagues,

Because they account for a sizeable share of global energy consumption and carbon emissions, buildings play a pivotal role in shaping a sustainable future and, as we move toward a net-zero carbon world, enhancing the sustainability of building design, construction, and operation has become essential. In short, the built environment must adapt to growing environmental challenges while improving energy efficiency, reducing emissions, and optimizing resource use.

This Special Issue focuses on innovative strategies, technologies, and practices that enable buildings to achieve net-zero energy consumption and significantly reduce carbon footprints. The emphasis will be placed on building design and construction techniques that promote sustainability, energy efficiency, and carbon reduction, alongside the integration of renewable energy systems, smart technologies, and low-carbon materials.

We invite original research and review articles that explore sustainable building practices for a net-zero future. Topics of interest include, but are not limited to, the following:

  • Innovations in insulation, windows, HVAC systems, and lighting to reduce energy demand in buildings.
  • Strategies and technologies for and case studies on achieving buildings with minimal energy consumption.
  • Approaches to integrating solar, wind, geothermal, and other renewable energy sources into building designs to reduce dependency on fossil fuels.
  • The development and application of eco-friendly, low-carbon materials and construction methods in building design and retrofitting.
  • The role of smart building technologies, including automation, IoT, and energy management systems, in enhancing energy efficiency and carbon reduction.
  • Techniques and technologies for retrofitting existing buildings to meet the energy performance standards required for a net-zero carbon future.
  • Strategies to minimize waste and maximize the reuse and recycling of materials in the building lifecycle.
  • Comprehensive assessments of the energy performance, exergy efficiency, and environmental impacts of buildings using simulations and real-world data.
  • Investigating methods to incorporate carbon capture and storage into construction materials, such as bio-based materials and carbon storing technologies.
  • The role of urban planning and district energy systems in facilitating sustainable and carbon-neutral urban environments.
  • Tools and methodologies for evaluating building performance in terms of energy efficiency and carbon emissions, including lifecycle assessments and environmental impact analyses.
  • Understanding the economic, social, and health benefits of sustainable buildings, including cost–benefit analyses and strategies for incentivizing green building practices.

This Special Issue will provide a comprehensive overview of the latest research, technological advancements, and practical solutions for creating a sustainable built environment that meets the demands of a net-zero future. We encourage contributions that highlight innovative approaches and practical implementations, offering solutions that can be applied globally to address the pressing challenges of climate change and resource depletion.

We look forward to receiving high-quality submissions that contribute to the advancement of sustainable building practices, enabling the built environment to play a central role in achieving global carbon reduction and energy efficiency goals.

Dr. P. Manoj Kumar
Prof. Dr. J. Raja Murugadoss
Dr. Murugesan Palaniappan
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Buildings is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • HVAC systems
  • energy consumption
  • eco-friendly and low-carbon materials
  • smart building technologies
  • net-zero energy buildings

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Published Papers (2 papers)

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Research

19 pages, 2321 KB  
Article
Performance Study of Nano-Enhanced PCM in Building-Integrated Semi-Transparent Photovoltaic Modules
by Nashmi H. Alrasheedi, Alagar Karthick, P. Manoj Kumar and Vijayakumar Rajendran
Buildings 2025, 15(23), 4236; https://doi.org/10.3390/buildings15234236 - 24 Nov 2025
Viewed by 327
Abstract
Buildings account for nearly 40% of global energy consumption, mainly due to the demands of artificial lighting and heating, ventilation, and air-conditioning (HVAC) systems. The integration of semi-transparent photovoltaic (STPV) modules into building envelopes presents a sustainable strategy to lower energy use while [...] Read more.
Buildings account for nearly 40% of global energy consumption, mainly due to the demands of artificial lighting and heating, ventilation, and air-conditioning (HVAC) systems. The integration of semi-transparent photovoltaic (STPV) modules into building envelopes presents a sustainable strategy to lower energy use while simultaneously replacing conventional roofs and façades. However, the performance of STPV systems is strongly influenced by incident solar radiation and building orientation, and elevated surface temperatures can further diminish their efficiency. In this study, the performance of an STPV module was assessed by placing it on a horizontal surface and varying its orientation relative to a 90° reference. To mitigate thermal effects and improve efficiency, a thermal management system incorporating a calcium chloride hexahydrate-based phase change material (PCM) was employed. The PCM was enhanced with nanomaterials—graphene oxide (GO) and aluminum oxide (Al2O3)—at weight fractions of 0%, 0.25%, 0.5%, and 1%. The thermophysical properties of the nano-enhanced PCM were analyzed using differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and thermal conductivity measurements. Under incident solar radiation of 941 W/m2, the electrical efficiencies of the PV, PV–PCM1, and PV–PCM2 modules were measured at 13.75%, 16.84%, and 15.28%, respectively, demonstrating the potential of nano-enhanced PCM to improve STPV performance. Full article
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23 pages, 1897 KB  
Article
Environmental Evaluation of Residential Heating: Comparative Life Cycle Assessment of Two Heating Systems
by Janez Turk, Andreea Oarga Mulec, Patricija Ostruh and Andraž Ceket
Buildings 2025, 15(21), 3977; https://doi.org/10.3390/buildings15213977 - 4 Nov 2025
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Abstract
The purpose of the study is to evaluate the environmental performance of two systems for space heating and hot water provision in a residential building. In both cases, a ground-source heat pump is used. In the baseline system, the heat pump is driven [...] Read more.
The purpose of the study is to evaluate the environmental performance of two systems for space heating and hot water provision in a residential building. In both cases, a ground-source heat pump is used. In the baseline system, the heat pump is driven by electrical power from the grid. In the alternative system, photovoltaic thermal collectors are integrated into the building for domestic hot water preparation and the production of electricity. Excess heat produced in the summer is introduced to the borehole and extracted later, in the cooler part of the year. Environmental benchmarking of the two systems was conducted using the Life Cycle Assessment method. A cradle-to-grave approach was applied, taking into account all life cycle stages of the system and its operation over 20 years. Results show that the alternative system yields significantly lower impacts in terms of Global Warming Potential (36% decrease) and Resources (36% decrease). In terms of Human Health, the decrease is minor (6%). However, in terms of Ecosystem, the alternative system shows a 47% higher impact than the baseline system. This increase is primarily attributed to the additional components required in the alternative configuration. Full article
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