Coordinated energy-environmental-economic optimisation of building retrofits for optimal energy performance on a macro-scale: A life-cycle cost-based evaluation

Hong, Yuanda; Ezeh, Collins I.; Deng, Wu; Hong, S.-H.; Ma, Yuanli; Tang, Yin; Jin, Yabin

doi:10.1016/j.enconman.2021.114327

Cited by 32 publications

(9 citation statements)

References 34 publications

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“…Still, the retrofit-AC effect was best on buildings built between 2004 and 2011, which is related to the thermal performance of the original envelope and updating AC. Previous findings have also demonstrated that the effectiveness of DSM varies depending on building type and construction period [19,56]. Therefore, using a single building as a case study to represent an entire class of buildings may not be comprehensive enough.…”

Section: Discussionmentioning

confidence: 99%

“…They analyzed the effects of upgrading the building envelope, HVAC, and lighting systems, adding a PV system to identify a compromise retrofit scenario that considers all stakeholders involved. Hong et al [19] added a renewable energy system, which was retrofitted and adopted energy saving behaviors, to office prototype buildings, and analyzing the best scenario to achieve the maximum life cycle benefits.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of Peak Demand Reduction and Energy Saving in a Mixed-Use Community through Urban Building Energy Modeling

Zhao,

Deng,

et al. 2024

Energies

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Energy saving in buildings is essential as buildings’ operational energy use constitutes 30% of global energy consumption. Urban building energy modeling (UBEM) effectively understands urban energy consumption. This paper applied UBEM to assess the potential of peak demand reduction and energy saving in a mixed-use community, using 955 residential buildings, 35 office buildings and 7 hotels in Shenzhen, China, as a case study. The building type and period were collected based on the GIS dataset. Then, the baseline models were generated by the UBEM tool—AutoBPS. Five scenarios were analyzed: retrofit-window, retrofit-air conditioner (AC), retrofit-lighting, rooftop photovoltaic (PV), and demand response. The five scenarios replaced the windows, enhanced the AC, upgraded the lighting, covered 60% of the roof area with PV, and had a temperature reset from 17:00 to 23:00, respectively. The results show that using retrofit-windows is the most effective scenario for reducing peak demand at 19.09%, and PV reduces energy use intensity (EUI) best at 29.96%. Demand response is recommended when further investment is not desired. Retrofit-lighting is suggested for its low-cost, low-risk investment, with the payback period (PBP) not exceeding 4.54 years. When the investment is abundant, retrofit-windows are recommended for public buildings, while PV is recommended for residential buildings. The research might provide practical insights into energy policy formulation.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis of Peak Demand Reduction and Energy Saving in a Mixed-Use Community through Urban Building Energy Modeling

Zhao,

Deng,

et al. 2024

Energies

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“…Lifecycle costs (LCC) related to the interventions were defined through the simplified approach proposed by (Hong et al, 2021) as the sum of investment costs (IC) and net present values (NPV), assuming, for simplification, the interest rate equal to the rate of energy price increase per year.…”

Section: Predictive Phasementioning

confidence: 99%

Towards Digital Twin Driven Cultural Heritage Management: A Hbim-Based Workflow for Energy Improvement of Modern Buildings

Massafra

Predari

Gulli

2022

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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Abstract. Europe has numerous historic buildings that need to become more energy-efficient, which need permanent maintenance and refurbishment to fulfill sustainability and use requirements. Asset owners and asset managers need to adopt new strategies to protect listed buildings while optimizing costs and benefits during their life cycle. In this sense, the digital transition proves to be a moment to seize for opening new scenarios. The Digital Twin paradigm promises to be valuable for enabling the sustainable knowledge, conservation, restoration, and management of built assets and solving the dilemma about protecting the architectural identity of these buildings while adapting them to the functional and performance requirements dictated by the regulatory framework. This study proposes a workflow that integrates Heritage Building Information Modeling (HBIM) and Building Performance Simulation (BPS) tools for data-driving the energy improvement of Italian listed modern buildings built between the 1920s and 1960s. After acquiring information about the building, the HBIM model and the Building Energy Model (BEM) are realized based on the International Foundation Classes (IFC) standard. Energy intervention measures are defined, construction costs are computed, and benefits during the intervention life cycle are predicted in thermal demand. Finally, an expeditious multi-criteria analysis allows for comparing different intervention combinations and indicating the optimal solution for the energy improvement of the building concerning energy, economic, and financial issues. These outcomes represent the first step towards realizing a dynamic, accessible, and sharable Digital Twin.

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“…Within this context, although historically particular attention has been paid on improving the energyenvironmental performance of mostly single buildings by means of sustainable technical solutions [22,23,24] (and suitable ways of produce [25], implement [26,27] and dispose [28,29,30] of them), more recently some studies have shown how moving to a broader vision (i.e., small clustered group of buildings) [31,32] by integrating the use of renewable resources [33,34,35] and by also considering economic benefits [36,37,38] and most importantly users' needs [39,40,41] can have a significant energyenvironmental impact on urban areas [42,43]. As a matter of fact, as claimed by the Urban Climate Change Research Network (UCCRN) [44], human activities/behaviors are changing urban metabolism in a way that increase energy, environmental and economic related risks.…”

Section: Introductionmentioning

confidence: 99%

Enhance Urban Energy Management and Decarbonization Through an EC-based Approach

Cirrincione

Geropanta

Peri

et al. 2023

2023 IEEE International Conference on Environment and Electrical Engineering and 2023 IEEE Industrial and Commercial Power Syst

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Promoting energy efficiency and decarbonization in urban settings, hence also in the variety of buildings within them, is amongst modern society major challenges. Urban settings are, in fact, responsible for almost 40% of energy consumption and energy-related pollutant emissions worldwide. In this framework, particular emphasis has been given by the EU and its member States on improving the energy performance of built environments by reducing buildings' energy consumption (retrofit interventions), by fostering the integration of renewable energy sources (RES), and by encouraging the establishment of pro-con-sumer groups/units (e.g., Energy Communities -ECs, consortia, etc.). These latter include users that share and collaborate in the energy management. Consequently, the need has arisen for more efficient energy management within individual ECs and between different ECs and public administrations and other potential stakeholders. Considering that ECs are a relatively recent reality, this paper discusses possible approaches to overcome some of the critical issues that have emerged from the Energy Community initiatives that are beginning to emerge recently.

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Coordinated energy-environmental-economic optimisation of building retrofits for optimal energy performance on a macro-scale: A life-cycle cost-based evaluation

Cited by 32 publications

References 34 publications

Analysis of Peak Demand Reduction and Energy Saving in a Mixed-Use Community through Urban Building Energy Modeling

Analysis of Peak Demand Reduction and Energy Saving in a Mixed-Use Community through Urban Building Energy Modeling

Towards Digital Twin Driven Cultural Heritage Management: A Hbim-Based Workflow for Energy Improvement of Modern Buildings

Enhance Urban Energy Management and Decarbonization Through an EC-based Approach

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