If the temperature drops by 10°C, what is the expected change in voltage according to the given formula?

The expected change in voltage due to a temperature drop of 10°C can be calculated using the temperature coefficient of voltage for solar cells, which is typically around -0.34% per °C. This means for every degree Celsius decrease in temperature, the voltage increases by approximately 0.34%.

In the scenario presented, a drop of 10°C would result in a total voltage change calculated as:

10°C × -0.34%/°C = -3.4%

This indicates a 3.4% increase in voltage as the temperature drops. Therefore, the correct answer reflects the appropriate application of the temperature coefficient to quantify how voltage is expected to respond to a change in temperature for solar panels.