Forecasting Chinese Wind Power Installed Capacity Using a Novel Grey Model with Parameters Combination Optimization

Table 2

Simulated/forecast results of wind power installed capacity with different models.

Year	Raw data
			RSPE (%)		RSPE (%)		RSPE (%)		RSPE (%)
In-sample
2009	25810	25810	0	25810	0	25810	0	25810	0
2010	44730	45935.00	2.69	44071.24	1.47	46297.13	3.50	44730.00	0.00
2011	62360	59636.23	4.37	61020.49	2.15	60183.19	3.49	61752.99	0.97
2012	75320	75249.90	0.09	74840.64	0.64	76010.17	0.91	75870.77	0.73
2013	91410	93042.95	1.79	91733.92	0.35	94049.37	2.89	93158.78	1.91
2014	114610	113319.57	1.13	112410.27	1.92	114610.00	2.01	114355.56	0.22
			2.01		1.31		2.16		0.77
Out-sample
2015	145360	136426.44	6.15	137726.78	5.25	138044.50	5.03	140354.90	3.44
2016	168730	162758.61	3.54	168729.99	0.00	164754.56	2.36	172250.14	2.09
	4.84			2.63		3.69		2.76
CRMPE	2.82			1.68		2.60		1.34