Electricity consumption in educational facilities has increased by an annual average of 9.84% since 2006. However, it is not considered as a factor in determining the AECB (annual energy cost budget) in South Korea. Therefore, this study aims to develop an estimation model for determining the AECB in educational facilities using the SARIMA (seasonal autoregressive integrated moving average) model and the ANN (artificial neural network). This study collected electricity consumption data for 7 years (2005-2011) from 787 educational facilities. The result of this study showed that the prediction accuracy of the proposed hybrid model (which was developed by combining SARIMA and ANN) was improved, compared to the conventional SARIMA model. The MAPE (mean absolute percentage error) of the proposed method and conventional method for determining the AECB in educational facilities was determined at 0.11-0.24% and 1.23-1.84%, respectively. Namely, it was determined that the proposed method was superior to the conventional method. The proposed model could enable executives and managers in charge of budget planning to accurately determine the AECB in educational facilities. It could be also applied to other types of resources (e.g., water consumption or gas consumption) used in educational facilities.
Bibliographical noteFunding Information:
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (No. NRF-2012R1A2A1A01004376 ).
All Science Journal Classification (ASJC) codes
- Civil and Structural Engineering
- Building and Construction
- Mechanical Engineering
- Industrial and Manufacturing Engineering
- Electrical and Electronic Engineering