| Title |
A Framework for Assessing Building Energy Change Based on Transition Performance and Contribution Structure |
| Authors |
이수진(Lee, Su-jin) ; 최세영(Choi, Se-Yeong) ; 최정민(Choi, Jeong-Min) |
| DOI |
https://doi.org/10.5659/JAIK.2026.42.5.301 |
| Keywords |
Building Energy Change; Transition Performance Index; Contribution Share; Region?Building Use Structure |
| Abstract |
This study proposes a building energy evaluation framework that separates transition performance from contribution to overall energy change.
Conventional indicators such as total energy use and energy use intensity describe either scale or efficiency, but do not reveal which regions
or building uses significantly influence overall energy change. Using Korea’s national building energy database, this study analyzes changes
between the base year (2018) and the assessment year (2024) for 17 regional governments and 30 building use categories. Changes in total
building energy use and energy use intensity are first standardized and combined into a Transition Performance Index (TPI). In parallel,
contribution (C) and its share (Contribution Share, CS) are derived using baseline energy share and the change rate of total building energy
use. The proposed framework evaluates each region or building use within a dual evaluation space defined by TPI and CS, identifying
groups that strongly influence overall energy change despite limited transition performance. The results show that performance and
contribution do not always coincide, requiring differentiated policy strategies across regions and building uses. |