Monthly Electricity Consumption Forecasting Method Based on X12 and STL Decomposition Model in an Integrated Energy System

Table 6

Assessment of monthly electricity consumption forecasting results for 2017.

Month	Model 1	Model 2	Model 3	The proposed method
	Relative error (%)	Relative error (%)	Relative error (%)	Relative error (%)
1	−29.59	−4.80	−5.19	3.03
2	12.39	18.95	−2.99	−3.86
3	12.15	−5.29	−12.09	2.26
4	−27.11	6.19	−3.99	3.10
5	−4.39	2.24	5.39	−5.36
6	−6.17	5.13	7.95	−5.77
7	−0.43	5.46	5.05	−4.98
8	13.87	13.75	2.43	−2.39
9	12.86	8.10	0.48	3.87
10	−0.87	7.56	4.88	4.61
11	−14.58	23.37	11.75	6.71
12	−9.89	14.60	4.74	2.11
MAPE	12.03	9.62	5.58	4.00
MAE	127198.42	92195.00	55408.53	39624.48
RMSE	176048.17	111642.10	63829.84	43118.85