Name of Application Service

The Great Decoding of Building Carbon Emissions: The Low-Carbon Revolution from Models to Reality – Low-Carbon Building (BIM Model) Assessment System

Name of Unit

Public Works Department, New Taipei City Government

Hyperlink

https://www.publicwork.ntpc.gov.tw/

Name of the Collaborative Group

Chinese Public Works Engineering Information Association

Hyperlink

https://www.cpweia.org.tw/

Brief of the Application or Service

1.     As the governing body for building development, we are committed to achieving Mayor Hou You-Yi's promise of reducing carbon emissions by 30% by 2030 and achieving net-zero carbon emissions by 2050. To facilitate lifecycle carbon disclosure and net-zero building goals, this system integrates BIM (Building Information Modeling) technology with the Ministry of the Interior's Low Em-bodied-carbon Building Rating System (LEBR) and its building component carbon footprint database. It enables architects to pre-assess carbon emissions during the planning stage, accelerating industry transformation towards carbon reduction at the source.

2.     This application enhances New Taipei City's Building Permit Computerized Review System by incorporating low-carbon (embodied carbon) building evaluation and calculation functionalities. Users can upload BIM models without restrictions on specific modeling software, link materials to carbon emission data, and automatically analyze and calculate carbon emissions for each building component.

3.     Application or Service

(1)   Streamlined Carbon Assessment Workflow: Integrates BIM with standardized LEBR carbon footprint calculations for operational efficiency. 

(2)   Source Carbon Reduction: Enables real-time carbon evaluation for architectural plans, maximizing the carbon reduction potential at the design stage. 

(3)   Building Carbon Footprint Disclosure: Displays carbon footprint data and evaluation grades on GIS platforms, starting with public buildings as demonstration projects.

PS:

Caption 1: Workflow of the Low-Carbon Building (BIM Model) Evaluation System

Caption 2: Core Framework of the Low-Carbon Building (BIM Model) Evaluation System

Caption 3: Low Carbon (Embodied Carbon) Carbon Footprint Disclosure

Brief of Innovation Initial and Achievement

Caption 4: New Taipei Trial Sites Have Inherent Advantages and Potential

Caption 5: At the 2024 "New Taipei Net-Zero BIM Action" Seminar, the academic sector invited Professor

Hsieh Shang-Hsien from the NTU BIM Center, Professor Lin Hsien-Te, and Associate Professor Yang Shih-Hsien from National Cheng Kung University to discuss BIM applications in net-zero sustainability development, technical services, fee structures, and carbon reduction evaluations during the design phase, as well as carbon emission calculations for road engineering (PCCES analysis). From the industry sector, we invited Continental Engineering Corporation, Chinese Public Works Engineering Information Association. Taipei International Group(Architectural firm), and Huakang Ennowell Intelligent Cloud to present BIM applications in architecture and public works, focusing on case studies integrating net-zero carbon strategies.

Caption 6: The Ministry of the Interior's Architecture and Building Research Institute Implemented the Low-Carbon (Embodied Carbon) Building Evaluation Manual on January 1, 2024.

Challenges and Solutions for the Application Deployment

This system leverages BIM models to automate large-scale data analysis for calculating carbon emissions and generating carbon footprint reports. Although AI technology is not directly applied, the system incorporates the embodied carbon formulas and building carbon footprint component database from the Ministry of the Interior's Architecture and Building Research Institute, offering a reliable tool for low-carbon building evaluation (Figures 7-9).

Caption 7: Excerpt from the Formulas in the Low-Carbon (Embodied Carbon) Building Evaluation Manual by the Architecture and Building Research Institute

Caption 8: Excerpt from the Formulas and Carbon Emission Material Database in the Low-Carbon (Embodied Carbon) Building Evaluation Manual

Caption 9: The system utilizes the formulas from the Building Evaluation Manual and automates data processing via BIM models to calculate carbon emissions and generate carbon footprint reports.

Innovation Index

Reducing carbon emissions at the construction source yields the best results (Figure 15).

Utilizing the BIM + Carbon Reduction Evaluation System.

Free 24-hour access for architects to upload BIM models for self-assessment (Figure 16).

The system's innovation lies in combining BIM technology with the low-carbon building evaluation mechanism, enabling automated carbon emission calculations. Compared to traditional manual methods, this system improves work efficiency and reduces errors. Additionally, the system offers a visualized BIM model display of carbon emissions, allowing users to intuitively verify carbon-emitting materials and data, perform real-time calculations, and generate carbon emission reports (Figure 17).

Caption 15: Effective Carbon Reduction at the Construction Source

Caption 16: Using the BIM + Carbon Reduction Evaluation System

Caption 17: The Drive Toward Net-Zero Carbon Will Shape Digital Twin Cities

Figure 18: Project Implementation Timeline

Future Plan

2024: Public Sector Leads the Way – Development of a Low-Carbon Building Verification System using BIM technology, piloting with public buildings nationwide to initiate building carbon reduction efforts.

2025: Public and Private Collaboration – Encouraging private projects to adopt the low-carbon building verification system to evaluate embodied carbon.

2026: Data Transparency – Establishing New Taipei City's LEBR Building Open Data Platform to implement full carbon emission disclosure, with periodic reviews of implementation methods and timelines.