Table 2.

Variance contribution of building cooling load related parameters.

Characteristics	Parameter	PC1	PC2	PC3	PC4	PC5	PC6	PC7	PC8
Meteorological parameters	Hourly outdoor temperature	0.414	−0.313	0.011	0.024	0.068	−0.834	−0.169	0
	Hourly outdoor solar irradiance	0.343	0.49	−0.006	0.058	−0.269	0.116	−0.743	0
	Daily maximum temperature†	0.316	−0.487	0.002	−0.121	−0.754	0.249	0.128	0
	Daily minimum temperature†	0.341	−0.435	0.016	−0.318	0.568	0.429	−0.292	0
Tag	Weekday_id	−0.007	0.02	1	−0.007	−0.01	0	0.005	0
Knowledge-based information	Theoretical fresh air load	0.378	−0.04	0.01	0.825	0.15	0.201	0.19	−0.276
	Theoretical envelope load	0.384	0.382	−0.009	−0.443	0.036	−0.039	0.376	−0.606
		0.451	0.295	−0.004	−0.055	0.085	0.042	0.376	0.746
PC Explained Variance		0.5009	0.2425	0.1249	0.0752	0.0257	0.0213	0.0094	~ 0

Parameters marked with † source from local weather forecast service.