Artificial neural networks 1 Auto-regressive integrated moving average 1 Correlation methods 1 Electric power systems 1 Electric power utilization 1 Electricity demand forecasting 1 Electricity demands 1 Forecasting 1 Gross domestic products 1 Long-term load forecasting 1 Malaysia 1 Model uncertainties 1 Multi-layered Perceptron 1 Multilayer neural networks 1 Pearson correlation 1 SARIMA 1 Uncertainty analysis 1