The windin California tends to blow the strongest at night and in the winter while the sun obviously is at its strongest during the day and in the summer months.
Meeting Britain's energy needs from onshore wind power would require covering literally the entire country in turbines, even assuming that the wind was guaranteed to blow.
In this case it was the family-friendly classic My Neighbor Totoro, in which sisters wandering in the forest meet King Totoro, a spirit whose powers include making the trees grow and the windblow.