In order to address these issues, better understanding of this
effect was presented in temperature dependence of the maximum
output power in Fig. 8c. The maximum output power of stationary
PV system versus the temperature drawn based on the data of
Fig. 8a. As illustrated in this figure, by further decreasing the
temperature of PV cell from 50.5 C to 29.6 C, the generated power
will only increase from 6.5 to 7.3 W.
From this graph, the temperature coefficient of the maximum
output power is equal to