The Combination Forecasting of Electricity Price Based on Price Spikes Processing: A Case Study in South Australia

Table 5

Traditional combination models forecasting results.

Time	Actual price value ($/MWh)	A-B (T)		B-K (T)		A-K (T)		A-B-K (T)
		Forecasting value ($/MWh)	MAPE (%)	Forecasting value ($/MWh)	MAPE (%)	Forecasting value ($/MWh)	MAPE (%)	Forecasting value ($/MWh)	MAPE (%)
00:30	41.91	18.84	55.05	22.88	45.41	23.95	42.87	22.29	46.81
01:00	37.92	18.64	50.86	19.64	48.21	19.84	47.67	19.49	48.61
01:30	34.93	20.71	40.72	23.05	34.02	23.14	33.75	22.67	35.11
02:00	24.75	18.47	25.36	20.62	16.70	20.64	16.61	20.26	18.13
02:30	22.86	11.73	48.69	15.03	34.25	16.26	28.87	14.58	36.21
03:00	20.49	17.03	16.91	17.33	15.43	16.76	18.19	17.23	15.91
03:30	18.55	17.03	8.22	17.33	6.59	16.76	9.64	17.23	7.12
04:00	18.82	17.32	7.97	17.17	8.78	16.67	11.44	17.15	8.87
04:30	19.59	18.35	6.33	18.90	3.54	18.93	3.38	18.81	3.99
05:00	19.57	19.53	0.20	20.23	3.37	20.49	4.70	20.14	2.89
05:30	21.61	20.46	5.34	21.97	1.65	22.65	4.82	21.77	0.75
06:00	21.14	25.70	21.55	24.82	17.41	24.47	15.73	24.94	17.96
06:30	21.63	31.20	44.23	31.45	45.41	27.89	28.94	31.11	43.84
07:00	21.63	31.38	45.09	33.68	55.72	38.91	79.87	33.73	55.96
07:30	19.85	26.42	33.10	28.29	42.51	27.99	41.00	27.95	40.81
08:00	21.66	31.14	43.77	30.59	41.23	29.37	35.60	30.58	41.18
08:30	30.75	33.58	9.20	33.04	7.45	31.90	3.73	33.03	7.43
09:00	31.95	30.00	6.10	36.07	12.90	35.85	12.19	35.04	9.68
09:30	32.57	28.54	12.39	35.67	9.53	35.46	8.87	34.47	5.82
10:00	40.81	28.52	30.12	37.40	8.35	37.48	8.15	35.93	11.96
10:30	44.21	31.27	29.28	37.05	16.19	36.27	17.97	36.02	18.52
11:00	43.97	30.93	29.66	37.57	14.56	36.01	18.11	36.33	17.37
11:30	44.66	34.34	23.11	36.54	18.19	35.58	20.34	36.09	19.19
12:00	43.25	38.33	11.37	38.43	11.14	39.26	9.24	38.48	11.02