Research Article
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 | | 4.88 | kWh m−2d−1 | Global available wind energy | | 0.36 | kWh m−2d−1 | Electrical energy quantities | | | | Net energy from the PV array | | 811 | kWh | Net energy from the WT | | 311 | kWh | Energy fraction from the PV | | 0.71 | Dimensionless | Energy fraction from the WT | | 0.29 | Dimensionless | Total energy in the system | | 1142 | kWh | Total energy used | | 822 | kWh | Net energy to the load | | 822 | kWh | BOS component performance | | | | BOS efficiency | | 72 | % | System performance indices | | | | PV array yield | | 4.4 | hd−1 | Final PV system yield | | 3.2 | hd−1 | Wind turbine yield | | 0.57 | hd−1 | Final wind turbine yield | | 0.41 | hd−1 | Normalized losses | | | | PV array capture losses | | 34.2 | % | PV BOS losses | | 28 | % | Performance ratio for the PV | | 41.4 | % | Wind turbine capture losses | | 27.7 | % | Wind BOS losses | | 37 | % | Performance ratio for the WT | | 46 | % | System efficiencies | | | | Average PV efficiency | | 9.3 | % | Global PV efficiency | | 6.72 | % | Average WT efficiency | | 9.46 | % | Global WT efficiency | | 6.86 | % |
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