Abstract
The temperature sensitivity of silicon solar cells is in general assumed to be constant with irradiance in PV forecasting models, although it has been demonstrated experimentally that this is not true. In this study a theoretical model is established that describes the variation of the temperature coefficients of a silicon solar cell as a function of the irradiance. It is shown that the temperature sensitivity of the solar cell efficiency is decreasing with the irradiance and that the main reason for this behavior
comes from the increase of the open-circuit voltage with light intensity. Moreover, a dependency of the cell´s ideality factor on the irradiance has to be assumed to receive good modelling results that can be confirmed experimentally
comes from the increase of the open-circuit voltage with light intensity. Moreover, a dependency of the cell´s ideality factor on the irradiance has to be assumed to receive good modelling results that can be confirmed experimentally
Original language | English |
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Pages (from-to) | 2-9 |
Number of pages | 8 |
Journal | Energy Procedia |
Volume | 92 |
Issue number | August 2016 |
Publication status | Published - 2016 |
Externally published | Yes |
Keywords
- Temperature coefficients
- silicon solar cells
- compensated silicon
- Irradiance
- ideality factor