An Ensemble Model of Attention-Enhanced N-BEATS and XGBoost for District Heating Load Forecasting

Accurate heat load forecasting is essential for the efficiency of District Heating Systems (DHS). Still, it is challenged by the need to model long-term temporal dependencies and nonlinear relationships with weather and other factors. This study proposes a hybrid deep learning framework combining an...

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Main Authors: Shaohua Yu, Xiaole Yang, Hengrui Ye, Daogui Tang, Hamidreza Arasteh, Josep M. Guerrero
Format: Article
Language:English
Published: MDPI AG 2025-07-01
Series:Energies
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Online Access:https://www.mdpi.com/1996-1073/18/15/3984
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author Shaohua Yu
Xiaole Yang
Hengrui Ye
Daogui Tang
Hamidreza Arasteh
Josep M. Guerrero
author_facet Shaohua Yu
Xiaole Yang
Hengrui Ye
Daogui Tang
Hamidreza Arasteh
Josep M. Guerrero
author_sort Shaohua Yu
collection DOAJ
description Accurate heat load forecasting is essential for the efficiency of District Heating Systems (DHS). Still, it is challenged by the need to model long-term temporal dependencies and nonlinear relationships with weather and other factors. This study proposes a hybrid deep learning framework combining an attention-enhanced Neural Basis Expansion Analysis for Time Series (N-BEATS) model and eXtreme Gradient Boosting (XGBoost). The N-BEATS component, with a multi-head self-attention mechanism, captures temporal dynamics, while XGBoost models non-linear impacts of external variables. Predictions are integrated using an optimized weighted averaging strategy. Evaluated on a dataset from 103 heating units, the model outperformed 13 baselines, achieving an MSE of 0.4131, MAE of 0.3732, RMSE of 0.6427, and R<sup>2</sup> of 0.9664. This corresponds to a reduction of 32.6% in MSE, 32.0% in MAE, and 17.9% in RMSE, and an improvement of 5.1% in R<sup>2</sup> over the best baseline. Ablation studies and statistical tests confirmed the effectiveness of the attention mechanism and ensemble strategy. This model provides an efficient solution for DHS load forecasting, facilitating optimized energy dispatch and enhancing system performance.
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spelling doaj-art-e9dcb28151d545e9b273721f1d0cfd8c2025-08-20T04:00:49ZengMDPI AGEnergies1996-10732025-07-011815398410.3390/en18153984An Ensemble Model of Attention-Enhanced N-BEATS and XGBoost for District Heating Load ForecastingShaohua Yu0Xiaole Yang1Hengrui Ye2Daogui Tang3Hamidreza Arasteh4Josep M. Guerrero5School of Intelligent Manufacturing, Nanjing University of Science and Technology, Nanjing 210094, ChinaSchool of Cyber Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaSchool of Cyber Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaSchool of Transportation and Logistics Engineering, Wuhan University of Technology, Wuhan 430063, ChinaCenter for Research on Microgrids (CROM), Huanjiang Laboratory, Shaoxing 311800, ChinaCenter for Research on Microgrids (CROM), Huanjiang Laboratory, Shaoxing 311800, ChinaAccurate heat load forecasting is essential for the efficiency of District Heating Systems (DHS). Still, it is challenged by the need to model long-term temporal dependencies and nonlinear relationships with weather and other factors. This study proposes a hybrid deep learning framework combining an attention-enhanced Neural Basis Expansion Analysis for Time Series (N-BEATS) model and eXtreme Gradient Boosting (XGBoost). The N-BEATS component, with a multi-head self-attention mechanism, captures temporal dynamics, while XGBoost models non-linear impacts of external variables. Predictions are integrated using an optimized weighted averaging strategy. Evaluated on a dataset from 103 heating units, the model outperformed 13 baselines, achieving an MSE of 0.4131, MAE of 0.3732, RMSE of 0.6427, and R<sup>2</sup> of 0.9664. This corresponds to a reduction of 32.6% in MSE, 32.0% in MAE, and 17.9% in RMSE, and an improvement of 5.1% in R<sup>2</sup> over the best baseline. Ablation studies and statistical tests confirmed the effectiveness of the attention mechanism and ensemble strategy. This model provides an efficient solution for DHS load forecasting, facilitating optimized energy dispatch and enhancing system performance.https://www.mdpi.com/1996-1073/18/15/3984district heating forecastingN-BEATSmulti-head self-attentionXGBoostmodel ensemble
spellingShingle Shaohua Yu
Xiaole Yang
Hengrui Ye
Daogui Tang
Hamidreza Arasteh
Josep M. Guerrero
An Ensemble Model of Attention-Enhanced N-BEATS and XGBoost for District Heating Load Forecasting
Energies
district heating forecasting
N-BEATS
multi-head self-attention
XGBoost
model ensemble
title An Ensemble Model of Attention-Enhanced N-BEATS and XGBoost for District Heating Load Forecasting
title_full An Ensemble Model of Attention-Enhanced N-BEATS and XGBoost for District Heating Load Forecasting
title_fullStr An Ensemble Model of Attention-Enhanced N-BEATS and XGBoost for District Heating Load Forecasting
title_full_unstemmed An Ensemble Model of Attention-Enhanced N-BEATS and XGBoost for District Heating Load Forecasting
title_short An Ensemble Model of Attention-Enhanced N-BEATS and XGBoost for District Heating Load Forecasting
title_sort ensemble model of attention enhanced n beats and xgboost for district heating load forecasting
topic district heating forecasting
N-BEATS
multi-head self-attention
XGBoost
model ensemble
url https://www.mdpi.com/1996-1073/18/15/3984
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