Sizing and Simulation of PV-Wind Hybrid Power System

Table 4

Results measured and calculated according to IEC 61724 for January 2009 to January 2010.

Parameter	Symbol	Measured	Units
Meteorological
Global direct irradiation	𝐻𝐼	4.88	kWh m^−2d^−1
Global available wind; energy	𝐸GAW	0.36	kWh m^−2d^−1
Electrical energy quantities
Net energy from the PV; array	𝐸PV	811	kWh
Net energy from the WT	𝐸WT	311	kWh
Energy fraction from the; PV	𝐹PV	0.71	Dimensionless
Energy fraction from the; WT	𝐹WT	0.29	Dimensionless
Total energy in the system	𝐸in	1142	kWh
Total energy used	𝐸use	822	kWh
Net energy to the load	𝐸𝐿	822	kWh
BOS component performance
BOS efficiency	𝜂BOS	72	%
System performance indices
PV array yield	𝑌PV	4.4	hd^−1
Final PV system yield	𝑌fPV	3.2	hd^−1
Wind turbine yield	𝑌WT	0.57	hd^−1
Final wind turbine yield	𝑌fWT	0.41	hd^−1
Normalized losses
PV array capture losses	𝐿cPV	34.2	%
PV BOS losses	𝐿BOSPV	28	%
Performance ratio for the; PV	𝑅pPV	41.4	%
Wind turbine capture losses	𝐿cWT	27.7	%
Wind BOS losses	𝐿BOSWT	37	%
Performance ratio for the; WT	𝑅pWT	46	%
System efficiencies
Average PV efficiency	𝜂PVmean	9.3	%
Global PV efficiency	𝜂PVtot	6.72	%
Average WT efficiency	𝜂WTmean	9.46	%
Global WT efficiency	𝜂WTtot	6.86	%