台灣建築能效標示評估工具開發與政策發展建議

Development of Tools for Taiwan’s Building Energy-Efficiency Rating System and Policy Recommendations

In 2002, the European Union adopted the Energy Performance of Buildings Directive (EPBD 2002/91/EC), which standardizes the methods for calculating a building’s energy efficiency and the system for obtaining a building’s Energy Performance Certificate. In Taiwan, the Ministry of the Interior’s Architecture and Building Research Institute began implementing the Building Energy-efficiency Rating System (BERS) in 2022 as part of the National Development Council's milestone announcement for the construction sector. Since July 1, 2023, public offices and service-related buildings must apply for both Green Building Certification and a Building Energy-efficiency Rating. Given the gradual adoption of the BERS and Building Energy-efficiency Rating System for Residential Buildings (R-BERS) in Taiwan over the past year, this study conducted rating calculations for some new and residential buildings and analyzed the differences in annual electricity consumption between building energy simulation and R-BERS calculation. In the BERS for new buildings, energy-saving indicators in the EEWH system are employed as the main calculation parameters. Nonresidential buildings that obtain Green Building Certification are awarded a rating of level 2 or higher, whereas a newly constructed collective residential building with Silver-level Green Building Certification is awarded a Building Energy Efficiency Rating of level 1. The annual electricity consumption calculated by the R-BERS was found to be similar to the results of the building energy simulation, indicating that the use of the BERS can enhance the efficiency with which a building’s annual electricity consumption can be estimated. On the basis of empirical calculations, this study developed BERS calculation software with a user-friendly interface. By referencing international practices regarding the implementation of polices related to building’s energy efficiency, this study also offered recommendations for the implementation of energy efficiency rating policies in Taiwan, contributing to the enhancement and progression of building energy efficiency policies.