Question

Which has more forecast uncertainty, wind generation or solar generation? Why?

Short answer

The reason is given below.

Step-by-step solution

Determine which has more forecast uncertainty, wind generation or solar generation 

Variability and uncertainty are the causes of forecast uncertainty. When wind and solar power are compared on an hourly and five-minute basis, it is discovered that solar output varies because of sunrise and sunset. Planning for these events in advance is made easier by the knowledge of the sunrise and sunset times as well as the path the sun takes through the sky each day. When the weather is comparable, solar diurnal variability is also.

Determine reason 

According to a statistical analysis of forecast errors, wind uncertainty was the leading cause of forecast inaccuracies for the day ahead. It is quite difficult to predict the direction, speed, or presence of wind at a given time. A day in advance cannot be precisely predicted.

The precision of the protection also gets better as the forecast time gets closer. Day ahead solar forecast were considerably accurate than wind. The forecast's accuracy improves as the precise time of sunset and sunrise, as well as the sun's intensity, approach.